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1.
Rev. Rede cuid. saúde ; 17(1): 50-62, 15/07/2023.
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1517977

ABSTRACT

Objetivo: avaliar a eficácia preventiva e terapêutica do tetrafluoreto de titânio (TiF4) em ensaios clínicos randomizados (ECR) e não randomizados (N-ECR). Materiais e Métodos: estudos sobre a eficácia do tetrafluoreto de titânio em esmalte e dentina, testado em diferentes veículos e formulações, foram obtidos nas seguintes bases de dados: PubMed, Cochrane Library, Scopus, Web of Science, LILACS/BBO e EMBASE, sem limite de ano de publicação ou idioma. Resultados: seis estudos com abordagem preventiva e terapêutica do TiF4 sobre a superfície dentária foram incluídos. Destes, três ECR e três N-ECR. Por meio da tabulação e categorização dos artigos, notou-se que o TiF4 obteve efeito positivo na prevenção da cárie em três estudos; efeito nulo no tratamento de lesões cariosas em dois; e apenas um estudo apresentou efeito negativo no tratamento da erosão quando comparado aos outros compostos fluoretados. Conclusão: Embora haja estudos na literatura, com distintos delineamentos metodológicos comprovando a eficácia do TiF4, tanto na prevenção quanto no tratamento de lesões de cárie e erosivas, ainda é necessário que mais ensaios clínicos randomizados sejam realizados, com o intuito de validar a eficácia da utilização clínica deste composto fluoretado.


Objective: to analyze the preventive and therapeutic efficacy of titanium tetrafluoride (TiF4) in studies with a methodological design based on randomized clinical trials (RCT) and non-randomized (N-RCT). Materials and Methods: data on the behavior of titanium tetrafluoride in enamel and dentin, tested in several vehicles and formulations, were extracted in the following databases: PubMed, Cochrane Library, Scopus, Web of Science, LILACS/BBO and EMBASE, without limitation of publication year or language. Results: six studies were obtained with preventive and therapeutic approach of TiF4 on the dental surface. Three studies were RCT and three were N-RCT. Through tabulation and categorization of articles, it was noticed that TiF4 showed a positive effect in caries prevention in three studies; a null effect in caries treatment was observed in two; and only one study had a negative effect in erosion treatment when compared to the other fluoridated compounds. Conclusion: Although there are several studies in the literature, with different methodological designs, proving the efficacy of TiF4 both in prevention and in therapeutic treatments of caries and dental erosion, it is still necessary that more clinical controlled studies be conducted, in order to validate the clinical use efficacy of this fluoride compound.

2.
Braz. dent. sci ; 26(2): 1-6, 2023. tab, ilus
Article in English | LILACS, BBO | ID: biblio-1436276

ABSTRACT

Objective: Evaluate the protective effect of artificial saliva formulations associated or not with mucin on dentin. Materials and Methods: Bovine dentin specimens were randomly allocated to 10 groups (n = 20) according to the artificial saliva tested and the presence or absence of mucin: Amaechi et al. (1998); Klimek et al. (1982); Vieira et al. (2005) and Eisenburger et al. (2001) and deionized water (control). Samples were submitted to an erosive cycle consisting of two immersions of 120 min in the saliva, followed by 1 min in hydrochloric acid solution, and new storage in saliva for 120 min. Surface loss (µm) was measured before and after the cycle. Data were analyzed using 2-way ANOVA and Tukey's test (p < 0.05). Results: A significant difference was observed for the saliva formulation but not for the presence of mucin. The deionized water provided the highest surface loss and the Eisenburger's saliva formulation the lowest. The groups testing the Amaechi, Klimek, and Vieira saliva did not present significant differences. Conclusion: Eisenburger's saliva formulation provides a higher protective effect against dentin erosion. The presence of mucin did not increase the erosion-preventive effect of artificial saliva formulations. (AU)


Objetivo: Avaliar o efeito protetor de formulações de saliva artificial associadas ou não à mucina sobre a dentina submetida a erosão. Material e Métodos: Espécimes de dentina bovina foram alocados em 10 grupos (n = 20) de acordo com a saliva testada e a presença ou ausência de mucina: . Amaechi et al. (1998); Klimek et al. (1982); Vieira e cols. (2005), Eisenburger et al (2001) e agua deionizada (controle). As amostras foram submetidas a um ciclo erosivo composto por duas imersões de 120 min na saliva, seguidas de 1 min em solução de ácido clorídrico e novo armazenamento na saliva por 120 min. A perda de superfície (µm) foi medida antes e depois do ciclo. Os dados foram analisados usando ANOVA 2 fatores e teste de Tukey (p <0,05). Resultados: Foi observada diferença significativa para a formulação de saliva, mas não para a presença de mucina. A água deionizada proporcionou a maior perda de superfície e a formulação de saliva de Eisenburger a menor. Os grupos que testaram a saliva Amaechi, Klimek e Vieira não apresentaram diferenças significativas entre si. Conclusão: A formulação de saliva de Eisenburger fornece o maior efeito protetor contra a erosão dentinária e a presença de mucina não aumentou o efeito preventivo de erosão de formulações de saliva artificial (AU).


Subject(s)
Saliva, Artificial , Tooth Erosion , Tooth Wear , Mucins
3.
Braz. dent. j ; 34(6): 75-81, 2023. tab, graf
Article in English | LILACS-Express | LILACS, BBO | ID: biblio-1528028

ABSTRACT

Abstract The purpose of this in vitro study was to test the hypothesis that fluoride treatment can prevent dental erosion on fluorotic enamel of different severities. It followed a 3×2 factorial design, considering a) fluorosis severity: sound (TF0, Thylstrup-Fejerskov Index), mild (TF1-2), moderate (TF3-4); and b) fluoride treatment: 0 (negative control) and 1150ppmF. Human molars with the three fluorosis severities (n=16, each) were selected and randomly assigned to the two fluoride treatments (n=8). Enamel blocks (4×4mm) were prepared from each tooth and subjected to a dental erosion cycling model, for 10 days. The daily cycling protocol consisted of erosive challenges (1% citric acid, pH 2.4), interspersed by periods of immersion in artificial saliva, and three 2-minute treatments with either 0 or 1150ppm F. The enamel volume loss (mm3) was calculated by subtracting values obtained by microtomography before and after cycling. Two-Way ANOVA showed no significant interaction between fluorosis severity and fluoride treatment (p=0.691), and no significant effect for either fluorosis severity (TF0 mean±standard-deviation: 13.5(10-2±0.42(10-2, TF1-2: 1.50(10-2±0.52(10-2, TF3-4: 1.24(10-2±0.52(10-2, p=0.416) or treatment (0ppmF: 1.49(10-2±0.53(10-2; 1150ppmF: 1.21(10-2±0.42(10-2; p=0.093), when evaluated independently. Considering the limitations of this in vitro study, the presence and severity of fluorosis in enamel do not appear to affect its susceptibility to dental erosion. Fluoride treatment was not effective in preventing the development of dental erosion in both sound and fluorotic enamel substrates under our experimental conditions.


Resumo Este estudo in vitro foi testou a hipótese de que o tratamento com flúor pode prevenir a erosão dentária no esmalte fluorótico de diferentes severidades. O objetivo deste estudo foi: investigar o efeito protetor dos fluoretos contra a erosão e abrasão simuladas no esmalte fluorótico. Seguiu um desenho fatorial 3×2, considerando a) severidade da fluorose em 3 níveis: hígido (TF0, Índice Thylstrup-Fejerskov), suave (TF1-2), moderada (TF3-4); b) tratamento com flúor: 0 (controle negativo) e 1150ppmF. Molares humanos com as três severidades de fluorose (n=16, cada) foram selecionados e distribuídos aleatoriamente para os dois tratamentos com flúor (n=8). Blocos de esmalte (4×4mm) foram preparados a partir de cada dente e submetidos a um modelo de ciclo de erosão dentária, por 10 dias. O protocolo de ciclagem diária consistiu em seis desafios erosivos de 5 minutos (1% de ácido cítrico, pH 2,4), intercalados por seis períodos de imersão em saliva artificial e três tratamentos de 2 minutos com 0 ou 1150ppmF. O volume do esmalte perdido foi calculado subtraindo o perfil superficial 3D obtido por microtomografia antes e depois da ciclagem. A ANOVA de dois fatores não mostrou interação significativa entre a severidade da fluorose e o tratamento com flúor (p = 0,691) e nenhum efeito significativo para a severidade da fluorose (TF0 média+/desvio padrão: 13,5(10-2±0,42(10-2, TF1-2: 1,50(10-2±0,52(10-2, TF3-4: 1,24(10-2±0,52(10-2, p=0,416) ou tratamento (0: 1,49(10-2±0,53(10-2; 1150ppmF: 1,21(10-2±0,42(10-2, p=0,093), quando avaliados independentemente. Considerando as limitações deste estudo in vitro, a presença e severidade da fluorose no esmalte não parece afetar sua suscetibilidade à erosão dentária. O tratamento com flúor não foi eficaz na prevenção do desenvolvimento da erosão dentária em esmalte hígido e fluorótico, sob as condições experimentais utilizadas.

4.
J. appl. oral sci ; 31: e20230108, 2023. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1448553

ABSTRACT

Abstract Polyphenols interact with salivary proteins and thus can improve the pellicle's erosion protective properties. This effect could be exploited to create rinsing solutions with polyphenols as active ingredients for erosion prevention. Different from the current gold standard for erosion protective rinsing solutions, these rinses would not rely on stannous ions. This would offer alternatives for patients with concerns regarding the composition of rinsing solutions and preferring bio-products. Objective To develop an erosion-preventive rinsing solution containing natural polyphenol-rich extracts. Methodology Solutions were prepared with polyphenols from either grapeseed extract or cranberry extract, 500 ppm fluoride added, and additionally flavors and sweeteners. Controls were deionized water, 500 ppm fluoride solution, and the gold standard rinse in the field (Sn2+/F-). In total, 135 enamel specimens (n=15/group) were subjected to five cycles of salivary pellicle formation (30 min, 37°C), modification with the solutions (2 min, 25°C), further salivary pellicle formation (60 min, 37°C), and erosive challenge (1 min, 1% citric acid, pH 3.6). Relative surface microhardness (rSMH), surface reflection intensity (rSRI), and amount of calcium release (CaR) were investigated. Data were analyzed with Kruskal-Wallis and Wilcoxon rank sum tests (α=0.05). Results The polyphenol solutions containing fluoride, as well as additional flavors, protected enamel better than fluoride alone, and similar to the Sn2+/F- solution, when investigating both rSMH and CaR. When measuring rSRI, Sn2+/F- showed the best protection, while the polyphenol solutions were similar to fluoride. Conclusion For two of the three assessed parameters (rSMH and CaR), both developed polyphenol-rich rinsing solutions were able to protect enamel from erosion, improving/potentializing the effect of fluoride and matching the protection offered by the current gold standard rinsing solution.

5.
West China Journal of Stomatology ; (6): 243-246, 2023.
Article in English | WPRIM | ID: wpr-981119

ABSTRACT

Dental erosion is characterized by progressively destroyed teeth, which has no relation to bacteria but to chemicals. Some internal factors, such as gastroesophageal reflux induced by bulimia, anorexia, gastrointestinal diseases, or drugs, and external factors, such as diet, drugs, and occupational acid exposure, are considered promotive factors for this disease. This article presents a patient suffering from severe dental erosion in the whole dentition, especially in the maxillary teeth, due to gastroesophageal reflux induced by glucocorticoid therapy for optic neuritis. This article discusses the mechanism between optic neuritis glucocorticoid therapy and dental erosion.


Subject(s)
Humans , Glucocorticoids/therapeutic use , Tooth Erosion/therapy , Gastroesophageal Reflux/complications
6.
Rev. Flum. Odontol. (Online) ; 3(59): 107-116, set.-dez. 2022. ilus
Article in English | LILACS, BBO | ID: biblio-1390758

ABSTRACT

Nowadays there is an increase in the consumption of acidic drinks, especially the fermented ones. Its ingestion is closely associated with the demineralization of superficial dental tissues, which characterizes dental erosion. The objective of this study was to evaluate the pH of industrialized and natural drinks. The sample consisted of soft drinks, natural and artificial juices, fermented drinks, isotonic drinks and energy from different commercial brands acquired in the city of Niterói (RJ). The products were kept at room temperature (25oC) for 1 hour and were aliquoted 3 mL of each drink to a Becker to measure pH in a specific electrode coupled to a potentiometer. The readings were performed in triplicate. The mean pH ranged from 2.34 to 4.31, the most acidic drink was the refrigerant and the less acidic, the curd. It was found that all drinks analyzed had an acidic pH. Thus, potentially erosive dental structures.


Atualmente, há um aumento no consumo de bebidas ácidas, especialmente as fermentadas. Sua ingestão está intimamente associada à desmineralização dos tecidos dentários superficiais, o que caracteriza a erosão dentária. O objetivo da presente pesquisa foi avaliar o potencial erosivo de bebidas industrializadas e naturais. A amostra de conveniência foi constituída de refrigerantes, sucos naturais e artificiais, bebidas fermentadas, isotônicos e energéticos de diferentes marcas comerciais adquiridas no município de Niterói (RJ). Os produtos foram mantidos em temperatura ambiente (25oC) durante 1 hora e foram aliquotados 3 mL de cada bebida para um Becker para a mensuração de pH em eletrodo específico acoplado a um potenciômetro. As leituras foram realizadas em triplicata. Os valores médios de pH variaram de 2,34 a 4,31, sendo a bebida mais ácida um refrigerante e a menos ácida, a coalhada. Constatou-se que todas as bebidas analisadas apresentaram um pH ácido e abaixo do crítico para a dissolução do esmalte, sendo estas potencialmente erosivas das estruturas dentárias.


Subject(s)
Tooth Erosion , Beverages , Hydrogen-Ion Concentration , Dental Enamel
7.
Braz. dent. j ; 33(4): 54-61, July-Aug. 2022. tab
Article in Portuguese | LILACS-Express | LILACS, BBO | ID: biblio-1394094

ABSTRACT

Resumo Este estudo desenvolveu e testou géis experimentais contendo íons fluoreto (F-) e estanho (Sn2+) para o controle da erosão dentária. Os espécimes polidos, de esmalte e dentina, foram previamente erodidos (solução de ácido cítrico a 1%, 10 min) e alocados aleatoriamente em 5 grupos (n = 10): Placebo - gel de hidroxipropilmetilcelulose (HMC); F + Sn + HMC - 7.500 ppm F- / 15.000 ppm Sn2+; F + HMC - 7.500 ppm F-; Gel de flúor fosfato acidulado comercial (12.300 ppm F-); e Controle - sem tratamento. Após o tratamento (aplicado por 60 s), os espécimes foram submetidos a uma ciclagem de erosão-remineralização (5 min em solução de ácido cítrico a 0,3%, 60 min em saliva artificial, 4 × / dia, 20 dias). A perda de superfície (SL, em µm) foi determinada após o 5º, 10º e 20º dias de ciclagem (α = 0,05). Para o esmalte, após 5 e 10 dias, o F + Sn + HMC apresentou a menor PS, não diferindo do gel comercial. Após 20 dias, não foram encontradas diferenças entre os grupos comercial, F + HMC e F + Sn + HMC. O placebo não diferiu do controle em nenhum momento, e ambos os grupos apresentaram a maior PS, comparado aos demais grupos. Para dentina, no 5º dia , F + Sn + HMC, F + HMC e comercial não diferiram significativamente, apresentando menor PS que o grupo controle e placebo. No 10º dia, F+Sn+HMC e comercial apresentaram a menor PS comparado ao grupo controle e placebo. No 20º dia, apenas o gel comercial apresentou PS menor que o controle e o placebo. Assim, o gel experimental F + Sn + HMC foi capaz de controlar a progressão da erosão dentária.


Abstract: This study synthesized and tested experimental gels containing fluoride (F-) and stannous (Sn2+) ions for the control of dental erosion. Enamel and dentin polished specimens were eroded (1% citric acid solution, 10 min) and randomly allocated into 5 groups (n=10): Placebo - Hydroxypropyl Methylcellulose (HMC) gel; F+Sn+HMC - 7,500 ppm F- / 15,000 ppm Sn2+; F+HMC - 7,500 ppm F-; Commercial acidulated phosphate fluoride gel (12,300 ppm F-); and Control - no treatment. After treatment (applied for 60 s), specimens underwent an erosion-remineralization cycling (5 min in 0.3% citric acid solution, 60 min in artificial saliva, 4×/day, 20 days). Surface loss (SL, in µm) was determined after the 5th, 10th and 20th days of cycling (α=0.05). For enamel, after 5 and 10 days, F+Sn+HMC presented the lowest SL, which did not differ from the commercial gel. After 20 days, no differences were found between commercial, F+HMC, and F+Sn+HMC groups. Placebo did not differ from the control at any time points, and both groups presented the highest SL when compared to the other groups. For dentin, on the 5th day, F+Sn+HMC, F+HMC and commercial did not differ significantly, showing lower SL than the control and the placebo. On the 10th day, F+Sn+HMC and commercial presented the lowest SL compared to control and placebo. After 20 days, only the commercial gel showed lower SL than the control and placebo. Thus, the experimental F+Sn+HMC gel was able to control the progression of tooth erosion.

8.
Rev. Ciênc. Méd. Biol. (Impr.) ; 21(1): 134-137, maio 05,2022. fig
Article in English | LILACS | ID: biblio-1370811

ABSTRACT

Introduction: although reports on dental erosion have appeared in literature for a long time, there is currently a growing interest among researchers and clinicians about this matter. Potential risk factors for loss of dental hard tissue are changed lifestyle and eating patterns, with increased consumption of acid foods and beverages. Case report: an atypical tooth wear on the buccal surfaces of the mandibular teeth in a 45-year-old woman referred for orthodontic treatment, associated with the frequent consumption of whiskey and lemon, is reported. A comprehensive approach, such as the recognition of dental erosion joined with a careful investigation about eating habits was performed. Ultrastructural examination of replicas of the teeth showed practically structureless enamel and dentin surfaces. Conclusion: the screening for dental erosion in patients seeking orthodontic treatment is advisable to be a usual procedure. Recommendations for treatment and prophylactic measures are made emphasizing the need of multiprofessional attention.


Introdução: embora relatos sobre erosão dentária já apareçam há bastante tempo na literatura, existe atualmente interesse crescente entre pesquisadores e clínicos sobre esse assunto. Fatores que representam riscos potenciais para a perda de tecido duro do dente são as mudanças no estilo de vida e no padrão de alimentação, com o aumento no consumo de alimentos e bebidas ácidas. Relato de caso: lesões atípicas de desgaste dentário na superfície vestibular das unidades inferiores, em uma mulher com 45 de idade, encaminhada para tratamento ortodôntico, associadas ao consumo frequente de uísque e limão, foram relatadas. Uma abordagem abrangente, como o reconhecimento da erosão dentária, em conjunção com a investigação cuidadosa dos hábitos alimentares, foi realizada. O exame por meio da microscopia eletrônica de varredura, realizada em réplicas dos dentes, revelou superfícies de esmalte e dentina praticamente desprovidos de elementos estruturais. Conclusão: sugere-se que uma avaliação direcionada à busca por erosão dentária em pacientes que procuram por tratamento ortodôntico seja um procedimento rotineiro. A atenção multiprofissional, envolvendo o tratamento e o uso de medidas preventivas, é essencial para a adequada atuação junto ao paciente.


Subject(s)
Humans , Female , Middle Aged , Tooth Erosion/etiology , Alcoholic Beverages/adverse effects , Acidity , Tooth Erosion/diagnostic imaging , Microscopy, Electron, Scanning
9.
Bol. malariol. salud ambient ; 62(3): 498-507, 2022. tab, graf
Article in Spanish | LILACS, LIVECS | ID: biblio-1397150

ABSTRACT

La alta prevalencia de desgaste dental erosivo producido por la ingestión frecuente de bebidas gaseosas, se ha convertido en uno de los principales problemas de salud bucal en niños, adolescentes y adultos jóvenes, cuyo tratamiento deviene en desafío para los profesionales de la salud. La investigación se propuso evaluar el efecto erosivo exógeno de las bebidas gaseosas, sobre el tejido dentario mediante el proceso de termociclado in vitro, en el que se sometieron 50 premolares extraídos a la experiencia de exposición a una bebida gaseosa, bajo condiciones de experimentación, resultando una diferencia significativa entre el peso inicial pre termociclado en cada pieza y el peso final obtenido después del proceso, lo cual demuestra el efecto negativo del consumo de bebidas gaseosas. En ese mismo sentido, y como parte de esta investigación, se evaluó los efectos beneficiosos de los probióticos como la L-alanina como suplemento de las bacterias beneficiosas a la salud bucal como el Lactobalilos rhamnosus GG que logran detener el avance de bacterias patógenas y oportunistas como el Streptococcus mutans. Los resultados mostraron que a medida que aumenta la concentración del probiótico, mayor es la disminución del número de unidades formadoras de colonias y de las biopelículas de Streptococcus mutans. Además, la investigación aborda la percepción del riesgo en estudiantes, de ingestión de bebidas gaseosas en la erosión dentaria y los criterios que sobre el tema tienen sus profesores tutores(AU)


The high prevalence of erosive dental wear caused by the frequent ingestion of soft drinks has become one of the main oral health problems in children, adolescents and young adults, whose treatment becomes a challenge for health professionals. The research aimed to evaluate the exogenous erosive effect of soft drinks on dental tissue through the in vitro thermocycling process, in which 50 extracted premolars were subjected to the experience of exposure to a soft drink, under experimental conditions, resulting in a significant difference between the initial pre-thermocycling weight in each piece and the final weight obtained after the process, which demonstrates the negative effect of the consumption of soft drinks. In that same sense, and as part of this research, the beneficial effects of probiotics such as L-alanine were evaluated as a supplement for beneficial bacteria for oral health such as Lactobalilos rhamnosus GG, which manage to stop the advance of pathogenic and opportunistic bacteria such as Streptococcus mutans. The results showed that as the concentration of the probiotic increases, the decrease in the number of colony-forming units and biofilms of Streptococcus mutans is greater. In addition, the research addresses the perception of risk in students, of ingestion of soft drinks in dental erosion and the criteria that their tutor teachers have on the subject(AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Arginine , Streptococcus mutans , Biofilms , Lacticaseibacillus rhamnosus , Tooth Wear , Bacteria , Tooth Erosion , Carbonated Beverages , Oral Health , Probiotics , Eating
10.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1385226

ABSTRACT

RESUMEN: Objetivo: determinar el efecto erosivo sobre el esmalte dental de dientes humanos extraídos, después de la exposición a bebidas industriales distribuidas comercialmente en Cartagena, Colombia. Materiales y métodos: estudio experimental in vitro en 26 dientes humanos extraídos con esmalte dental sano, distribuidos aleatoriamente en doce grupos experimentales que fueron expuestos a bebidas industriales comercializadas en la ciudad de Cartagena. Las bebidas fueron expuestas durante 7 días, dos veces al día. Para determinar el efecto erosivo, se valoró pH de la bebida, pérdida de peso de los dientes expuestos y aspecto clínico del esmalte dental posterior a la exposición. Resultados: todas las bebidas evaluadas presentaron pH<4.5, siendo la Coca Cola® y jugo Hit® naranja las que exhibieron el pH más bajo. Todas las bebidas causaron desmineralización del esmalte, sin embargo, las que causaron mayor pérdida de peso fueron Speed Max®, Vive 100® y Coca-Cola®. Conclusiones: Speed Max® y Coca-Cola® fueron las bebidas que generaron mayor efecto erosivo sobre la estructura dental, por lo cual es necesario informar a la población los riesgos para la salud oral que se derivan del consumo desmedido de estas bebidas.


ABSTRACT: Objective: to determine the erosive effect on dental enamel of extracted human teeth, after exposure to industrial drinks distributed commercially in Cartagena, Colombia. Materials and methods: experimental in vitro study in 26 human teeth extracted with healthy dental enamel, randomly distributed in twelve experimental groups that were exposed to industrial beverages commercialized in the city of Cartagena. The teeth were exposed to the drinks for 7 days, twice a day. To determine the erosive effect, pH of the drink, weight loss of the exposed teeth and clinical appearance of the dental enamel after exposure were evaluated. Results: all the evaluated drinks presented pH <4.5, being Coca Cola® and Hit® Orange Juice the ones that exhibited the lowest pH. All the drinks caused enamel demineralization, however, the ones that caused the most weight loss were Speed ​​Max®, Vive 100® and Coca Cola®. Conclusions: Speed Max® and Coca Cola® were the drinks that generated the greatest erosive effect on the dental structure. Therefore, it is necessary to inform the population about the risks to oral health derived from the excessive consumption of these drinks.

11.
RFO UPF ; 26(1): 144-158, 20210327. tab
Article in English | LILACS, BBO | ID: biblio-1435382

ABSTRACT

Objective: to review the literature on the relationship between oral health and bariatric surgery in obese individuals. Methods: articles published until March 2021 were searched in the Medline/PubMed, LILACS, BBO, and Web of Science databases. The search used a combination of descriptors related to the words: obesity, bariatric surgery, and oral health. Results: one hundred thirty-five studies were identified in the database search. Of these, 47 were included in this review. The oral changes investigated in the literature for individuals who underwent bariatric surgery were dental caries, tooth wear/erosion, hypersensitivity, periodontal disease, hyposalivation, halitosis, and changes in mastication and oral soft tissue. The evaluated articles showed methodological controversy regarding the study design, follow-up period, sample size, and assessed clinical parameters, which complicated the comparison of studies. Final considerations: there is no consensus in the literature regarding the relationship between oral health and bariatric surgery in obese individuals. Further prospective cohort studies should be conducted to investigate this association better.(AU)


Objetivo: revisar a literatura sobre a relação entre saúde bucal e cirurgia bariátrica em indivíduos obesos. Métodos: foi realizada uma busca de estudos publicados até março de 2021 nas bases de dados Medline/PubMed, LILACS, BBO e Web of Science. Foi utilizada uma combinação de descritores relacionada às palavras: obesidade, cirurgia bariátrica e saúde bucal. Resultados: foram identificados 135 estudos nas bases de dados pesquisadas. Desses, 47 estudos foram incluídos nesta revisão. As alterações bucais investigadas em indivíduos que realizaram cirurgia bariátrica apresentadas na literatura foram: cárie dentária, desgaste dentário/erosão dentária, hipersensibilidade, doença periodontal, hipossalivação, halitose, alterações da função mastigatória e alterações no tecido mole bucal. Os estudos avaliados mostraram controvérsia metodológica em relação a: tipo de desenho de estudo, tempo de seguimento, tamanho da amostra e parâmetros clínicos avaliados, fato que dificultou comparar os estudos. Considerações finais: não há consenso na literatura sobre a relação entre saúde bucal e cirurgia bariátrica em indivíduos obesos. Mais estudos de coorte prospectivos devem ser realizados para estudar melhor essa associação.(AU)


Subject(s)
Humans , Oral Health , Bariatric Surgery , Mouth Diseases/etiology , Obesity/surgery , Obesity/complications , Tooth Wear/etiology , Halitosis/etiology
12.
Archives of Orofacial Sciences ; : 177-189, 2021.
Article in English | WPRIM | ID: wpr-962302

ABSTRACT

ABSTRACT@#This study aimed to determine the fluoride and pH levels of beverages likely to be consumed by children in Malaysia and to estimate daily fluoride intake from consumption of these beverages. A convenience sampling of 120 ready-to-drink beverages were purchased and categorised into 11 groups (UHT recombined milk, fresh milk [pasteurised], cultured milk [probiotic], yogurt beverages, fresh fruit juices, fruit flavoured beverages, soy-based beverages, malt-based beverages, tea, carbonated beverages and bottled waters). Fluoride concentration was measured using a fluoride ion-selective electrode while the pH level was measured using a pH meter. The fluoride concentration in the beverages ranged from 0.02±0.00 mg/L to 2.77±0.06 mg/L. Tea was found to have the highest fluoride concentration. The intake of fluoride from consumption of other types of beverages is below the lowest-observed-adverse-effect level (except tea). The pH of the beverages included in the study ranged from 2.20±0.01 to 7.76±0.00. Carbonated beverages (mean pH: 2.98±0.50) were found to be extremely acidic followed by fresh fruit juices (mean pH: 3.38±0.34) and fruit flavoured beverages (mean pH: 3.90±0.92). The correlation between fluoride and pH levels was weak, τ = 0.058 and not statistically significant (p < 0.35). The majority of the beverages had a low fluoride level and their consumption is unlikely to cause fluorosis except for tea. Almost half of the beverages had a low pH level with carbonated beverages being the most acidic.


Subject(s)
Fluoridation , Carbonated Beverages , Dental Care for Children , Acid-Base Imbalance
13.
Araçatuba; s.n; 2021. 38 p. ilus, graf, tab.
Thesis in Portuguese | BBO, LILACS | ID: biblio-1435696

ABSTRACT

O objetivo do presente estudo foi sintetizar e caracterizar ciclotrifosfato de sódio (NaTMP) contendo cálcio, e verificar seu efeito utilizando modelo de lesões iniciais de erosão do esmalte. Os ciclotrifosfatos contendo cálcio (CaNaTMP) foram sintetizados utilizando coluna para cromatografia e adição de sobrenadante de solução contendo hidróxido de cálcio e analisados por meio de microscopia eletrônica de varredura e espectroscopia de raios-X por dispersão de energia. Para determinar o efeito sobre lesões erosivas iniciais, blocos de esmalte bovino sadios (n=96) foram selecionados por dureza de superfície inicial e divididos em 8 grupos experimentais (12 blocos/grupo): controle (água deionizada), 0,24% NaF (1100 ppm F), 0,25%, 0,5% e 1% de NaTMP e CaNaTMP nas mesmas concentrações. Os blocos de esmalte foram imersos em 4 mL das soluções experimentais durante 2 minutos, seguidos por 4 desafios erosivos (ácido cítrico, 0,75%, pH 3,5, por 1 minuto, sob agitação). A porcentagem de perda da dureza de superfície (%SH) foi calculada após cada desafio ácido. Os dados foram submetidos à análise de variância de medidas repetidas a dois critérios, seguida pelo teste de Tukey (p< 0,05). O processo de síntese levou a substituição de átomos de Na por átomos de Ca e as partículas apresentaram tamanhos homogêneos. As soluções contendo 0,25%, 0,5% e 1% CaNaTMP apresentaram menor %SH quando comparadas as suas contrapartes sem cálcio (p< 0,001), após os quatro desafios erosivos. Quando comparado a solução contendo 1100 ppm F, as soluções 0,5% e 1% CaNaTMP promoveram redução na perda de dureza (p< 0,001). Concluiu-se que soluções contendo CaNaTMP promoveram efeitos protetores superiores em comparação ao grupo 1100 ppm F sobre lesões iniciais do esmalte(AU)


The objective of the present study was to synthesize and characterize sodium cyclotriphosphate (NaTMP) containing calcium and verify its effect using an initial enamel erosion model. Cyclotriphosphate containing calcium (CaNaTMP) was synthesized using column chromatography, and addition of a solution with calcio hydroxide supernatant and analyzed by scanning electron microscopy and energydispersive X-ray spectroscopy. To determine the effect on enamel initial erosion, sound bovine enamel blocks (n=96) were selected by initial surface hardness and divided into to 8 experimental groups (12 blocks/group): control (deionized water), 0.24% NaF (1100 ppm F), 0.25%, 0.5% and 1% NaTMP and CaNaTMP at the same concentrations. The enamel blocks were immersed in 4 mL of the experimental solutions for 2 minutes followed by 4 erosive challenges (citric acid, 0.75%, pH 3.5, for 1 minute, under stirring). The percentage of surface hardness variation (%SH) was calculated after each acid challenge. Data were subjected to two-way repeated measures analysis of variance, followed by Tukey's test (p< 0.05). The synthesis process led to the replacement atoms of Na by atoms of Ca with particles having, homogeneous sizes. The solutions containing 0.25%, 0.5% and 1% CaNaTMP promoted lower %SH when compared to their counterparts without calcium (p< 0.001), after the four erosive challenges. When compared to the solution containing 1100 ppm F, the 0.5% and 1% CaNaTMP solutions were superior in reducing hardness loss (p< 0.001). It was concluded that solutions containing CaNaTMP led to superior protective effects compared to the 1100 ppm F group on initial enamel erosion(AU)


Subject(s)
Phosphates , Tooth Erosion , Calcium , Dental Enamel/injuries , Spectrometry, X-Ray Emission , Tooth Erosion/prevention & control , Microscopy, Electron, Scanning , Dental Enamel
14.
Revista Naval de Odontologia ; 47(1): [7-13], 12/06/2020.
Article in English | LILACS | ID: biblio-1359694

ABSTRACT

This study evaluated the ex vivo effectiveness of different final irrigation protocols in smear layer removal and intraradicular dentine erosion. Thirty five extracted human canines were instrumented and randomly divided, according to final rinse techniques used, into 7 groups: 1 (ED3M) and 3 (ED3US), 17% EDTA for 3 minutes with manual and ultrasonic agitation, respectively; 2 (CA30M) and 4 (CA30US), 10% citric acid for 30 seconds with manual and ultrasonic agitation, respectively; 5 (CA3M) and 6 (CA3US), 10% citric acid for 3 minutes with manual and ultrasonic agitation, respectively; and, 7 (Na3), 5.25% NaOCl for 3 minutes without agitation (control). All specimens then were irrigated with 5.25% NaOCl, split lengthwise, and examined under scanning electron microscopy (SEM) in apical, middle and coronal thirds. Data were analyzed with Kruskal-Wallis and Mann-Whitney tests. The effectiveness of 17% EDTA and 10% citric acid in removing smear layer was significantly greater than 5.25% NaOCl (control). There were no significant differences among final irrigation protocols in smear layer removal or erosive effects. However, when comparing the thirds in groups 1 (ED3M) and 2 (CA30M), the least smear layer removal and erosion was seen in the apical third, but the group 4 procedure (CA30US) was more effective than 1 (ED3M) (p=0.0004), 2 (CA30M) (p=0.0018) or 3 (ED3US) (p=0.0003) in smear layer removal for the apical third. It was concluded that protocols used in this study were similar in smear layer removal and erosive effects.


Subject(s)
Humans , Male , Female , Tooth Erosion , Microscopy, Electron, Scanning , Edetic Acid , Citric Acid
15.
Araçatuba; s.n; 2020. 53 p. ilus, tab.
Thesis in Portuguese | BBO, LILACS | ID: biblio-1392311

ABSTRACT

Este estudo in vitro avaliou o efeito de dentifrícios contendo fluoreto (F), trimetafosfato de sódio (TMP) e/ou xilitol e eritritol (XE) em inibir ou reparar lesão erosiva inicial do esmalte. Blocos de esmalte bovino (n=120) foram selecionados por dureza de superfície (SH) inicial e divididos em 5 grupos compostos por dentifrícios (24 blocos/grupo): Placebo (sem F, TMP e XE); 1100 ppm F; 16% xilitol + 4% eritritol (XE); 200 ppm F + 0,2% TMP (200 ppm F/TMP); e 200 ppm F + 0,2% TMP + 16% xilitol + 4% eritritol (200 ppm F/TMP/XE). Para a análise do efeito protetor, blocos hígidos (n=60) foram imersos 1x/2 minutos em suspensão de dentifrícios/saliva humana. Em seguida, os blocos foram submetidos a 4 desafios erosivos com ácido cítrico (0,75%, pH 3,5) de 1 minuto cada, sob agitação. A seguir, a SH foi determinada pós-tratamento (t) e após o 1º, 2º, 3º e 4º desafios ácidos erosivos (d) para o cálculo da porcentagem de variação da SH (%SH). Para a análise do efeito reparador, esmalte previamente erodido (n=60) foi tratado e submetido aos mesmos desafios erosivos descritos anteriormente. A %SH de recuperação (R) e %SHt foram calculadas, bem como, a diferença entre a %SHR e %SHd obtendo-se o Δ%SH para cada desafio. Experimento adicional foi realizado para análise da deposição de precipitados por Microscopia Eletrônica de Varredura (MEV) em esmalte hígido e erodido. Os dados foram submetidos à análise de variância de medidas repetidas a dois critérios, seguida pelo teste de Student-Newman-Keuls (p<0,05). Os resultados mostraram que o maior efeito protetor e reparador foi produzido pelo dentifrício 200 ppm F/TMP/XE quando comparado aos demais grupos (p<0,001). Os grupos 1100 ppm F e 200 ppm F/TMP apresentaram similar efeito protetor para o 1º, 2º e 3º desafios (p>0,05), e menor quando comparados ao XE (p<0,001). O efeito protetor e reparador foi: XE>200 ppm F/TMP>1100 ppm F>Placebo (p<0,001). Na MEV observou-se deposição de precipitado no esmalte para todos os grupos, formando uma camada mais espessa e homogênea nos grupos contendo XE e/ou TMP. Concluiu-se que dentifrício contendo 200 ppm F, TMP e polióis apresenta efeito protetor e reparador superior quando comparado a um dentifrício 1100 ppm F em lesões erosivas iniciais no esmalte(AU)


This in vitro study evaluated the effect of toothpaste containing fluoride (F), sodium trimetaphosphate (TMP) and/or xylitol and erythritol (XE) in inhibit or repair initial enamel erosion lesions. Bovine enamel blocks (n=120) were selected by initial surface hardness (SH) and divided into 5 groups of toothpastes (n=24 blocks/group): Placebo (no F, TMP or XE); 1100 ppm F; 16% xylitol + 4% erythritol (XE); 200 ppm F + 0.2% TMP (200 ppm F/TMP); and 200 ppm F + 0.2% TMP + 16% xylitol + 4% erythritol (200 ppm F/TMP/XE). For the analysis of the protective effect, sound blocks (n=60) were immersed in toothpaste slurry in human saliva once for 2 minutes. Hereafter, the blocks were submitted to 4 erosive challenges in citric acid (0.75%, pH 3.5) by 1 minute, under stirring. Then, the SH was determined after treatment (t) and after the 1st, 2nd, 3rd and 4th erosive acid challenges (d) to calculate the percentage of change of the SH (%SH). For the analysis of the repair effect, eroded enamel (n=60) were treated and submitted to erosive challenges as describe previously. The recovery (R) of %SH and %SHt were calculated, as well as the difference between the %SHR and %SHd obtaining the Δ%SH for each challenge. Additional experimental was performed to analysis the deposition of precipitates by Scanning Electronic Microscopy (SEM) on sound and eroded enamel. Variables were submitted to two-way repeated measures analysis of variance followed by StudentNewman-Keuls test (p<0.05). The results showed that the highest protective and repair effect was produced by the 200 ppm F/TMP/XE toothpaste when compared to the other groups (p<0.001). The 1100 ppm F and 200 ppm F/TMP groups had similar protective effect for the 1st, 2nd and 3rd challenges (p>0.05), and lower when compared to XE (p<0.001). The protective and repair effect was: XE>200 ppm F/TMP>1100 ppm F>Placebo (p<0.001). There were deposition of precipitates on enamel for all groups, with a thicker layer and homogeneous for XE and/or TMP groups. It was concluded that toothpaste containing 200 ppm F, TMP and polyols has superior protective and repair effect when compared to 1100 ppm F toothpaste in initial enamel erosive lesions(AU)


Subject(s)
Phosphates , Tooth Erosion , Xylitol , Dental Enamel , Dentifrices , Erythritol , Fluorides , Sugar Alcohols , Microscopy, Electron, Scanning
16.
Braz. dent. sci ; 23(1): 1-7, 2020. tab
Article in English | LILACS, BBO | ID: biblio-1049765

ABSTRACT

Objetivo: O objetivo deste estudo foi avaliar o efeito in vitro de águas aromatizadas no esmalte dental humano utilizando um método gravimétrico. Material e Métodos: As superfícies linguais dos molares inferiores foram utilizadas para obter amostras de esmalte. O esmalte (n = 3) foi lavado, seco, e posteriormente imerso em 6 diferentes águas aromatizadas com gás disponíveis na região, e avaliado periodicamente por até 9 dias através de análise gravimétrica. Além disso, as medições de pH das águas aromatizadas foram registradas. Resultados: Todas as águas aromatizadas testadas apresentaram valores de pH abaixo do pH crítico. Os testes t pareados demonstraram reduções significativas na massa média do grupo para todas as amostras de esmalte desde o primeiro dia após a imersão em água com sabor, em comparação com as medições de referência. Reduções adicionais na massa média continuaram até o nono dia de imersão. Conclusão: As águas aromatizadas são potencialmente erosivas para as amostras de esmalte humano, sendo o efeito erosivo cumulativo ao longo do tempo. (AU)


Objective: The aim of this study was to assess the in vitro effect of flavored waters on human tooth enamel using a gravimetric method. Lingual surfaces of lower molars were used to obtain enamel specimens. Material and Methods: Enamel (n=3) was washed and dried, immersed in 6 flavors of locally available flavored sparkling water and assessed using gravimetric analysis, periodically for up to 9 days. Additionally, pH measurements of the flavored waters were recorded. Results: All the tested flavored waters showed pH values below that of critical pH. Paired t-tests demonstrated significant reductions in the mean group mass for all enamel specimens from as early as day 1 after immersion in flavored water, compared to baseline measurements. Further reductions in mean mass continued up to day 9 of immersion. Conclusion: Flavored waters are potentially erosive to human enamel specimens with the erosive effect being cumulative over time. (AU)


Subject(s)
Humans , Tooth Erosion , Dental Enamel , Gravimetry , Carbonated Water , Flavoring Agents , Time Factors , In Vitro Techniques , Carbonated Water/analysis , Hydrogen-Ion Concentration , Molar
17.
Araçatuba; s.n; 2020. 99 p. ilus, tab, graf.
Thesis in English | LILACS, BBO | ID: biblio-1451310

ABSTRACT

O presente estudo avaliou o efeito de vernizes fluoretados suplementados com nanopartículas de Trimetafosfato de Sódio (TMP) sobre o desgaste erosivo do esmalte dental bovino, em protocolos in vitro e in situ. Para a 1ª fase, blocos de esmalte dental bovino (n=100) foram selecionados por meio de dureza de superfície (DS) e aleatoriamente divididos em 5 grupos experimentais (n=20/grupo), de acordo com os vernizes testados: (a) Placebo (Pla - sem F ou TMP), (b) 5% NaF, (c) 5% NaF + 5% TMP microparticulado (5% Micro), (d) 5% NaF + 2,5% TMP nanoparticulado (2,5% Nano), (e) 5% NaF + 5% TMP nanoparticulado (5% Nano). Os blocos receberam uma única aplicação dos vernizes e foram imersos em saliva artificial por 6 h. Em seguida, os vernizes foram removidos e todos os blocos, submetidos a 4 desafios erosivos diários durante 5 dias (ERO, imersão em ácido cítrico 0,05 M, pH 3,2, 90 s/ciclo, sob agitação). Após ERO, metade dos blocos foi submetida a abrasão por escovação (15 s/ciclo) com dentifrício placebo (ERO+ABR). Os blocos foram analisados por perfilometria, dureza de superfície (DS) e dureza em secção longitudinal (ΔKHN). Os dados foram submetidos a ANOVA a dois critérios e Teste de Fisher LSD (p< 0,05). O desgaste do esmalte foi significativamente menor para ERO comparado a ERO+ABR para todos os vernizes testados (p< 0,001), seguindo o padrão 5% Nano < 5% Micro < 5% NaF < 2,5% Nano < Pla (ERO e ERO+ABR). A maior perda de DS foi observada para o Pla e a menor para 5% NaF (ERO) e 2,5% Nano (ERO+ABR), sem diferenças significativas entre 2,5% Nano, 5% NaF e 5% Micro. Os maiores valores de ΔKHN foram observados para 5% Micro e 5% Nano a 5-30 µm, com diferenças menos acentuadas entre os grupos a 30-70 µm (ERO e ERO+ABR). Para a 2ª fase, blocos de esmalte bovino (n=224) foram selecionados por DS e distribuídos aleatoriamente entre os grupos: (a) Placebo (Pla - sem F ou TMP), (b) 5% NaF, (c) 5% NaF + 5% TMP microparticulado (5% Micro), e (d) 5% NaF + 5% TMP nanoparticulado (5% Nano). Os blocos foram inseridos em dispositivos acrílicos palatinos (n=4/dispositivo), e tratados com os vernizes uma única vez, permanecendo na cavidade bucal dos voluntários (n=14) por 6 h. Em seguida, os vernizes foram removidos e os blocos, submetidos à ERO (imersão ex vivo em ácido cítrico 0,05 M, pH 3,2, 90 s, 4x/dia), enquanto dois blocos foram adicionalmente submetidos a abrasão por escovação com dentifrício fluoretado (ERO+ABR), totalizando 5 dias em cada etapa experimental, seguindo um protocolo duplo-cego e cruzado. As análises dos blocos e dos dados foram idênticas às da 1ª fase. Os valores do desgaste seguiram um padrão similar em ambas as condições experimentais (ERO ou ERO+ABR), com 5% Nano < 5% Micro < 5% NaF < Pla. Um padrão similar foi observado para dureza em secção longitudinal (ΔKHN), apesar de não serem verificadas diferenças significativas entre 5% Micro×5% Nano (5-30 µm). Quanto à perda de DS, o maior valor foi observado para Pla e o menor para 5% Nano (ERO ou ERO+ABR), sem diferenças significativas entre Pla×5% NaF (ERO), 5% NaF×5% Micro (ERO+ABR), e 5% Micro×5% Nano (ERO+ABR). Diante dos resultados, conclui-se que a adição de TMP a vernizes fluoretados melhorou significativamente a proteção contra o desgaste erosivo do esmalte in vitro e in situ. O uso de 5% de TMP em escala nanométrica aumentou ainda mais esses efeitos(AU)


The present study evaluated the effect of fluoride (F) varnishes supplemented with sodium trimetaphosphate (TMP) nanoparticles on erosive tooth wear, using in vitro and in situ protocols. For the first phase, bovine enamel blocks (n=100) were selected by surface hardness (SH) and randomly divided into 5 experimental groups (n=20/group), according to the varnishes tested: (a) Placebo (Pla - without F or TMP), (b) 5% NaF, (c) 5% NaF + 5% micrometric TMP (5% Micro), (d) 5% NaF + 2.5% nano-sized TMP (2.5% Nano), (e) 5% NaF + 5% nano-sized TMP (5% Nano). Blocks received a single varnish application, and were immersed in artificial saliva for 6 h. Varnishes were then removed and all blocks, subjected to 4 daily erosive challenges during for 5 days (ERO, immersion in 0.05 M citric acid, pH 3.2, 90 s/cycle, under agitation). After ERO, half of the blocks were subjected to abrasion by brushing (15 s/cycle) with placebo dentifrice (ERO+ABR). Blocks were analyzed by profilometry, surface hardness (SH) and cross-sectional hardness (ΔKHN). The data were submitted to 2-way ANOVA and Fisher's LSD test (p< 0.05). Enamel wear was significantly lower for ERO compared to ERO+ABR for all varnishes tested (p< 0.001), following the pattern 5% Nano < 5% Micro < 5% NaF < 2.5% Nano < Pla (ERO and ERO+ABR). The highest SH loss was observed for Pla, and the lowest for 5% NaF (ERO) and 2.5% Nano (ERO+ABR), without significant differences between 2.5% Nano, 5% NaF and 5% Micro. The highest values of ΔKHN were observed for 5% Micro and 5% Nano at 5-30 µm, with less marked differences between the groups at 30-70 µm (ERO and ERO+ABR). In the second phase, bovine enamel blocks (n=224) were selected by SH and randomly distributed among the groups: (a) Placebo (Pla - without F or TMP), (b) 5% NaF, (c) 5% NaF + 5% micrometric TMP (5% Micro), and (d) 5% NaF + 5% nano-sized TMP (5% Nano). The blocks were inserted in acrylic palatal devices (n=4/device), and treated with the varnishes only once, remaining in the oral cavity of the volunteers (n=14) for 6 h. Then, the varnishes were removed and the blocks, subjected to ERO (ex vivo immersion in 0.05 M citric acid, pH 3.2, 90 s, 4x/ day), while two blocks were additionally subjected to abrasion by brushing with fluoride dentifrice (ERO+ABR), totaling 5 days in each experimental stage, following a double-blind, crossover protocol. The blocks and the data were analyzed as described for the first phase. The wear values followed a similar pattern under both experimental conditions (ERO or ERO+ABR), with 5% Nano < 5% Micro < 5% NaF < Pla. A similar pattern was observed for hardness in depth (ΔKHN), although no significant differences were found between 5% Micro×5% Nano (5-30 µm). As for SH loss, the highest value was observed for Pla, and the lowest for 5% Nano (ERO or ERO+ABR), without significant differences between Pla×5% NaF (ERO), 5% NaF×5% Micro (ERO+ABR), and 5% Micro×5% Nano (ERO + ABR). In view of the results, it was concluded that the addition of TMP to fluoride varnishes significantly improved protection against erosive enamel wear in vitro and in situ. The use of 5% nano-sized TMP further increased these effects(AU)


Subject(s)
Phosphates , Tooth Erosion , Fluorides, Topical , Polyphosphates
18.
Braz. dent. sci ; 23(3): 1-8, 2020. ilus, tab
Article in English | BBO, LILACS | ID: biblio-1117327

ABSTRACT

Objective: This study aimed to evaluate the surface microhardness and morphology, as well as the microshear bond strength of a self-etching adhesive (Clearfil SE, Kuraray) to eroded dentin, exposed or not to cigarette smoke. Forty dental crowns were divided into 4 groups (n = 10): no treatment (control) (C); erosion (E); erosion + cigarette smoke exposure (ES); cigarette smoke exposure (S). Samples were prepared through third molars polishing until dentin exposure, followed by crown section. Erosive cycles were performed 5 times/day for 30 s at 60 min intervals. Cigarette smoke was produced with twenty cigarettes/day, during 5 days. Microhardness was evaluated initially and after the treatments. Microshear bond strength was tested after the treatments and dentin restoration with flow composite. Failure patterns and dentin morphology was evaluated by Scanning Electron Microscopy. Microshear bond strength data was submitted to two-way ANOVA, microharness test was adjusted by gamma distribution to be a non-parametric analyses (p=0.05), and surface morphology as qualitative analyses. Loss percentage of microhardness was observed only in groups submitted to erosion. Bond strength was statistically similar between all groups. The most prevalent failure pattern was of adhesive type. Morphological analysis of dentin showed obliterated tubules in groups submitted to cigarette smoke exposure. Cigarette smoke exposure did not promote any effect in the percentage of microhardness loss, as in sound dentin as in eroded dentin. Cigarette smoke, erosion, and association of both, did not alter the bond strength of self-etching adhesives to dentin. (AU)


Objetivo: Este estudo teve como objetivo avaliar a microdureza (% perda de dureza) e morfologia de superfície (MS), assim como a resistência de união (RU) de um adesivo autocondicionante (Clearfil SE, Kuraray) à uma dentina erodida, exposta ou não à fumaça de cigarro. Material e Métodos: Quarenta coroas dentais de terceiros molares foram seccionadas da raiz e polidas até a exposição dentinária, sendo aleatoriamente divididas em 4 grupos (n=10): sem tratamento (controle), erosão (E), erosão+ exposição a fumaça de cigarro (ES); exposição a fumaça de cigarro (S).O ciclo erosivo foi realizado 5 vezes/dia por 30s, com 60 minutos de intervalo entre eles. Os grupos ES e S foram exposto à fumaça de cigarro produzida por 20 cigarros/dia, durante 5 dias. A avaliação da microdureza foi realizada antes e após os tratamentos, enquanto a resistência da união por microcisalhamento foi realizada após os tratamentos Os padrões de fratura representativos e a MS dentinária foram avaliados por microscopia eletrônica de varredura (MEV). Os dados de RU foram analisados por ANOVA dois fatores, enquanto a análise de microdureza foi ajustada por distribuição gama por ser uma análise não-paramétrica (p=0.05). A MS foi analisada qualitativamente. Resultados: Os grupos expostos aos ciclos erosivos (E e ES) apresentaram % de perda de dureza significativamente menor que os grupos não expostos (Controle e S. aos ciclos erosivos (E e ES). Para RU, não houve diferença estatística significativa entre os grupos. O padrão de fratura mais observado foi do tipo adesivo, e através das imagens obtidas por MEV, observou-se a obliteração de túbulos dentinários no grupo exposto à fumaça de cigarro, enquanto os grupos submetidos aos ciclos erosivos (E e ES) apresentaram maior exposição e diâmetro de túbulos dentinários. Conclusão: A exposição à fumaça de cigarro não promove nenhum efeito quanto a perda de porcentagem de dureza dentinária, assim como em dentina erodida e saudável. A fumaça de cigarro, o processo erosivo, e a associação de ambos, não altera a resistência da união de adesivos autocondicionantes à dentina. (AU)


Subject(s)
Tensile Strength , Tooth Erosion , Crowns , Dental Cements , Tobacco Products
19.
Journal of Korean Academy of Oral Health ; : 7-12, 2020.
Article in Korean | WPRIM | ID: wpr-820823

ABSTRACT

OBJECTIVES: The aim of this study was to investigate the effects of some commercial calamansicontaining beverages on the sound surface of bovine teeth as well as the dental erosion inhibitory effects of calcium.METHODS: The pH and titratable acidity of six kinds of commercially available calamansi beverages were determined. Further, 3% calcium was added to the calamansi beverage Oranssi in the experimental group to confirm its dental erosion inhibitory effect. Jeju Samdasoo was used in the negative control group and Coca-Cola in the positive control group. After immersing the sound teeth specimens for 10 min, surface microhardness was measured using the Vickers hardness number (VHN), and surface changes in specimens were observed under a scanning electron microscope.RESULTS: The average pH of the commercial calamansi beverages was 2.54±0.22. After 10 min of treatment with each experimental beverage, the surface hardness difference (ΔVHN) was highest in the Coca-Cola group (−49.05±12.59), followed by the Oranssi calamansi group (−43.77±13.70), 3% calcium-added Oranssi calamansi group (−2.71±12.58), and Samdasoo group (14.03±20.79). There was no significant difference between the bottled water and calcium-added Oranssi calamansi groups or between the Coca-Cola and Oranssi calamansi groups (P>0.05). However, there was a significant difference in the surface hardness between the bottled water and CocaCola groups (P<0.05). On scanning electron microscopy, the Samdasoo group showed a smooth surface without any loss, but Coca-Cola and Oranssi calamansi groups showed a rough surface due to erosion. However, although fine cracks and porosities were seen in the calcium-added Oranssi calamansi group, surfaces in the group were much smoother than those in the Oranssi calamansi group.CONCLUSIONS: Calamansi beverages of low pH may cause corrosion of the tooth surface, and the addition of calcium to the calamansi beverages inhibits demineralization of the tooth surface. Therefore, it is necessary to consider the risk of dental erosion when drinking calamansi beverages of low pH.


Subject(s)
Beverages , Calcium , Corrosion , Dental Enamel , Drinking , Drinking Water , Hardness , Hydrogen-Ion Concentration , Microscopy, Electron, Scanning , Porosity , Tooth
20.
Rev. cuba. estomatol ; 56(4): e1998, oct.-dez. 2019.
Article in Portuguese | LILACS | ID: biblio-1093255

ABSTRACT

RESUMO Introdução: As lesões cervicais não cariosas são lesões dentárias, que apresentam etiologia multifatorial, sem o envolvimento de bactérias. Objetivo: Descrever as características clínicas, etiologia e tratamento das lesões cervicais não-cariosas. Métodos: Realizou-se uma revisão bibliográfica de estudos publicados nos últimos 5 anos (2014-2018) por meio da busca nas bases de dados: PubMED/Medline, Lilacs, Science Direct, SciELO (Scientific Eletronic Library) e Google Acadêmico. Para a pesquisa foram utilizados os seguintes descritores: "lesões cervicais não cariosas (non-carious cervical lesions)", "abrasão dentária (dental abrasion)", "erosão dentária (dental erosion)", "abfração dentária (dental abfraction)" e "atrição dentária (dental atrittion). Após criteriosa filtragem, foram selecionados 26 artigos e 2 livros para inclusão no estudo. Análise e integração das informações: As lesões cervicais não cariosas comumente classificadas em: abrasão, abfração, erosão e atrição. Essas lesões podem apresentar diversas formas, apesar de serem incluídas em uma classe genérica de denominação. São lesões que causam a perda gradativa dos tecidos mineralizados dentários, podendo trazer inúmeras consequências ao dente acometido. Conclusão: Para um correto diagnóstico e decisão de tratamento, essas lesões devem ser vistas sob seu aspecto etiológico multifatorial. Diversas possibilidades terapêuticas podem ser utilizadas no tratamento dessas lesões sendo necessário que o clínico conheça os principais fatores etiológicos e características clínicas que as diferenciem(AU)


RESUMEN Introducción: Las lesiones cervicales no cariosas son lesiones dentales, que presentan etiología multifactorial, sin la participación de bacterias. Objetivo: Describir las características clínicas, etiología y tratamiento de las lesiones cervicales no cariosas. Métodos: Se realizó una revisión bibliográfica de estudios publicados en los últimos 5 años (2014-2018) a través de la búsqueda en las bases de datos: PubMED / Medline, Lilacs, Science Direct, SciELO (Scientific Eletronic Library) y Google Académico. Para la investigación se utilizaron los siguientes descriptores: "lesiones cervicales no cariosas", "abrasión dental", "erosión dental", "abfracción dental" y " " atrición dental. Después de un cuidadoso filtrado, se seleccionaron 26 artículos y 2 libros para su inclusión en el estudio. Análisis e integración de las informaciones: Las lesiones cervicales no cariosas comúnmente clasificadas en: abrasión, abfración, erosión y atrición. Estas lesiones pueden presentar diversas formas, aunque se incluyen en una clase genérica de denominación. Son lesiones que causan la pérdida gradual de los tejidos mineralizados dentales, pudiendo traer innumerables consecuencias al diente acometido. Conclusiones: Para un correcto diagnóstico y decisión de tratamiento, estas lesiones deben ser vistas bajo su aspecto etiológico multifactorial. Diversas posibilidades terapéuticas pueden ser utilizadas en el tratamiento de esas lesiones, por lo que resulta necesario que el clínico conozca los principales factores etiológicos y características clínicas que las diferencien(AU)


ABSTRACT Introduction: Non-carious cervical lesions are dental lesions of a multifactorial etiology, without the involvement of bacteria. Objective: Describe the clinical characteristics, etiology and treatment of non-carious cervical lesions Methods: A bibliographic review was conducted of studies published in the last five years (2014-2018) by searching the databases PubMED / Medline, Lilacs, Science Direct, SciELO (Scientific Electronic Library) and Google Scholar. The following descriptors were used: "non-carious cervical lesions", "dental abrasion", "dental erosion", "dental abfraction" and "dental attrition. After careful filtering, 26 articles and two books were selected for inclusion in the study. Data analysis and integration: Non-carious cervical lesions are commonly classified as abrasion, abfraction, erosion and attrition. These lesions may present various forms, but they are all grouped in a single generic class. They are lesions that cause the gradual loss of mineralized dental tissue, which may bring countless consequences to the affected tooth. Conclusions: For a correct diagnosis and treatment decision, these lesions must be seen under their multifactorial etiological aspect. Various therapeutic possibilities may be used in the treatment of these lesions, and it is necessary for the clinician to know the main etiological factors and clinical characteristics that differentiate them(AU)


Subject(s)
Humans , Tooth Abrasion/etiology , Tooth Erosion/therapy , Review Literature as Topic , Tooth Attrition/etiology , Databases, Bibliographic , Diagnostic Techniques and Procedures/adverse effects
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