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1.
Braz. oral res. (Online) ; 37: e031, 2023. tab, graf
Article in English | LILACS-Express | LILACS, BBO | ID: biblio-1430030

ABSTRACT

Abstract This meta-analysis aimed to investigate the effects of propolis on the severity of coronavirus disease symptoms by reducing periodontal disease. PubMed, EMBASE, SciELO, Web of Science, and SCOPUS databases were systematically searched. Studies have been conducted analyzing propolis's effects on COVID-19 and periodontitis. The study was conducted according to the PRISMA statement and registered in PROSPERO. Risk of Bias (RoB) assessment and meta-analysis of clinical studies were performed (Review Manager 5, Cochrane). The certainty of the evidence was assessed using GradePro (GDT). Studies have shown propolis flavonoids inhibit viral replication in several DNA and RNA viruses, including coronaviruses. Propolis components have an aminopeptidase inhibitor activity that can inhibit the main proteases of SARS viruses and seem to inhibit protein spikes, which are sites of most mutations in SARS-CoV strains. The meta-analysis showed favorable results with the use of propolis on probing depth (95%CI: 0.92; p < 0.001), clinical attachment level (95%CI: 1.48; p < 0.001), gingival index (95%CI: 0.14; p = 0.03), plaque index (95%CI: 0.11; p = 0.23), and blending on probing (95%CI: 0.39; p < 0.001). The antibacterial activity of propolis could be mediated through its direct action on microorganisms or the stimulation of the immune system, activating natural defenses. Thus, propolis inhibits the replication of SARS-CoV-2 as well as its bacterial activity. Treatment with propolis improves general health and facilitates the activation of the immune system against coronavirus.

2.
J. appl. oral sci ; 21(6): 597-600, Nov-Dec/2013. tab
Article in English | LILACS, BBO | ID: lil-697812

ABSTRACT

Objective: To evaluate the efficacy of Neem (Azadirachta indica) experimental gel for the prevention of erosive wear on bovine dentin, in vitro. Material and Methods: One hundred dentin blocks were allocated into 5 experimental groups (20 samples each): C (control group, without gel); CG (control group, only base gel); F (fluoride gel, 1.23% NaF; pH 4.1, Dentsply; Brazil); N (Neem gel, 10% neem extract; pH 4.1, manipulation); NF (Neem+fluoride gel, 10% Neem extract and 1.23% NaF; pH 4.1, manipulation). The blocks were stored in artificial saliva for 24 hours. After this, they were submitted to six alternating re- and demineralization cycles. The blocks were analyzed for wear (profilometry). The results were submitted to statistical analysis by ANOVA and Tukey tests (P<0.05). Results: The mean wear (±SD, µm) was shown as follows in groups: C (13.09±0.99), CG (10.60±1.99), F (10.90±1.44), N (12.68±1.13) and NF (10.84±1.65). All gels showed some preventive action when compared with control group. However, significant differences were found only between Neem+fluoride gel and fluoride gel. Conclusion: A single application of a neem-containing fluoride gel reduced dentin erosion, thus it is a possible alternative in reducing dental wear. Further research should investigate the action mechanism and the synergism between them. .


Subject(s)
Animals , Cattle , Azadirachta/chemistry , Dentin/drug effects , Fluorides, Topical/therapeutic use , Plant Extracts/therapeutic use , Tooth Erosion/prevention & control , Dental Enamel/drug effects , Fluorides, Topical/pharmacology , Gels , Hardness , Plant Extracts/pharmacology , Reproducibility of Results , Saliva, Artificial/chemistry , Surface Properties , Time Factors , Tooth Demineralization , Tooth Remineralization
3.
RGO (Porto Alegre) ; 60(1): 7-12, jan.-mar. 2012. graf
Article in English | LILACS, BBO | ID: biblio-874569

ABSTRACT

Objective: This study investigated undergraduates? and general population?s knowledge about the methods used for tooth procurement and donation and their destination. Methods: The sample consisted of all undergraduates from a public institution (n=200) and 500 residents from the city of Bauru, São Paulo. They were asked to answer a self-explanatory questionnaire. Results: A total of 56.5% and 71.6% of undergraduates and Bauru residents, respectively, answered the questionnaire. Statistical analysis was based on absolute and relative frequencies. The results showed that 88.5% of the undergraduates had already used human teeth in laboratory activities and at least 8% of them had also used human teeth in research. Most (80.5%) teeth came from donations. Some (59.3%) study participants kept the unused teeth and some (29.2%) donated them. Bauru residents reported that dental surgeons hardly ever asked them to donate their teeth and demonstrated little knowledge about the existence of tooth banks, although most had already extracted at least one tooth. Conclusion: The results suggest that undergraduates have difficulty implementing measures for tooth use and procurement. Activities of human tooth banks need to be disclosed not only to undergraduates but also to the general population.


Objetivo: Analisar o conhecimento dos acadêmicos de graduação de uma instituição pública e da população em geral, sobre os métodos adotados para a aquisição, doação e destinação de órgãos dentários. Métodos: A amostra foi composta de todo o universo de graduandos (n=200) e por 500 indivíduos residentes em Bauru, São Paulo, os quais receberam umquestionário auto-explicativo. Resultados: Houve devolução de 56,5% dos questionários respondidos por graduandos e 71,6% dos respondidos pela população. A análise estatística foi realizada por meio de frequências absolutas e relativas. Os resultados demonstraram que 88,5% dos acadêmicos já utilizaram dentes humanos em atividades laboratoriais e pelo menos 8,0% deles utilizaram também em pesquisa. Quanto à aquisição de órgãos dentários, verificou-se que 80,5%, ocorrem por meio de doações. Os participantes da pesquisa afirmaram que 59,3% guardavam e 29,2% doavam os dentes não utilizados. A população relatou que o profissional quase nunca solicitou a doação do órgão dentário e demonstrou ter baixo conhecimento em relação à existência de banco de dentes, embora a maioria já tivesse extraído algum dente.Conclusão: Os resultados sugerem que os acadêmicos têm dificuldades na adoção de medidas para o uso e a aquisição de órgãos dentários. Há anecessidade de divulgação das atividades dos bancos de dentes humanos não só no meio acadêmico, mas para toda a população.


Subject(s)
Bioethics , Tooth , Tissue and Organ Procurement
4.
Ciênc. Saúde Colet. (Impr.) ; 17(1): 55-60, jan. 2012. tab
Article in English | LILACS | ID: lil-610658

ABSTRACT

O objetivo deste estudo foi identificar a prevalência das manifestações bucais em pacientes HIV+/SIDA do Hospital Pediátrico DIA de Maputo. Foram incluídos 90 pacientes na pesquisa. Cárie dentária (índice ceod/CPOD), mucosa e fluxo salivar foram avaliados. Informações sobre alimentação e hábitos de higiene bucal foram obtidas por meio de um questionário. Para a análise estatística foram utilizados os testes t-student e qui-quadrado. A lesão oral mais frequente foi a candidíase (5,5 por cento) e no exame extra-oral foi observada uma prevalência de alargamento da parótida de 23 por cento. A média do ceod foi 2,6 (± 3,6) dentes, consideravelmente alta em relação ao CPOD que foi de 0,6 (±1,6) dentes, sendo esta diferença estatisticamente significante (p<0,05). A ocorrência de lesões na mucosa bucal foi maior em crianças que não faziam uso da terapia antiretroviral (TRA). O uso da TRA esteve associado com a redução da prevalência de lesões bucais em pacientes HIV+, contudo cáries rampantes foram maiores neste grupo. Pacientes HIV+ mostraram maior risco de cáries na dentadura decídua.


The scope of this study was to identify the prevalence of oral manifestations in HIV+/AIDS patients at the DIA Pediatric Hospital of Maputo. All 90 patients were included in the research. Data on dental caries (dmft/DMFT index), soft tissues and saliva flow were analyzed. Information on diet and hygienic habits was obtained in a semi-structured questionnaire. The t- student and chi-square tests were used for statistical assessment. The most frequent oral lesion was candidiasis (5.5 percent) and upon further oral examination the prevalence of parotid enlargement was 23.0 percent. The mean dmft 2.6 (SD 3.6) was considerably higher in relation to DMFT of 0.6 (SD 1.6), and the differences between them were statistically significant (P<0.05). The occurrence of mucosal lesions was higher in children who did not take antiretroviral therapy (ART) (p= 0.026). The use of ART is associated with reduced prevalence of oral lesions in HIV+ patients; however, rampant caries were highest in this group. Primary dentition of HIV+ patients should be considered high risk for caries.


Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Infant , Male , HIV Seropositivity/complications , Mouth Diseases/etiology , Mouth Diseases/epidemiology , Mozambique , Prevalence
5.
Braz. dent. j ; 22(3): 198-202, 2011. tab
Article in English | LILACS | ID: lil-595643

ABSTRACT

This study evaluated in vitro the effect of an experimental gel containing iron on the reduction of hydraulic conductance of dentin. Thirty-six 1-mm-thick dentin discs obtained from extracted human third molars were divided into 3 groups of 10 specimens each. The groups corresponded to the following experimental materials: 1.23 percent acidulated phosphate fluoride gel, pH 4.1; 3 percent potassium oxalate gel, pH 4.1 (Oxa-Gel®); and iron sulfate gel (10 mmol/L FeSO4), pH 4.1. The gels were applied to dentin under the following conditions: after 37 percent phosphoric acid and before 6 percent citric acid. Data were analyzed statistically by ANOVA and Tukey's test at 5 percent significance level. There was no significant differences (p<0.05) among the groups in any of the conditions for hydraulic conductance reduction, except for smear layer presence. The active agents reduced dentin permeability, but they produced significantly lower (p<0.05) reduction in hydraulic conductance when compared to presence of smear layer. The effectiveness in reducing dentin permeability was not significantly different (p>0.05) among the gels. This study suggests that the iron gel promoted reduction in dentin permeability comparable to that of the other agents and thus may be considered a good clinical alternative for the treatment of dentin hypersensitivity.


Este estudo objetivou avaliar in vitro o efeito do gel experimental contendo ferro na redução da condutividade hidráulica na dentina. Trinta e seis discos de dentina humana de 1 mm de espessura, foram obtidos de terceiros molares extraídos divididos em 3 grupos de 10 espécimes cada. Os grupos foram divididos nos seguintes grupos experimentais: F- flúor gel a 1,23 por cento, pH 4,1; O- gel de oxalato de potássio a 3 por cento, pH 4,1; I- gel de sulfato ferroso FeSO4 a 10 mmol/L, pH 4,1. Os géis foram aplicados na dentina sob as diferentes condições: após o ácido fosfórico a 37 por cento a antes do ácido cítrico a 6 por cento. Os resultados foram analisados por ANOVA e teste de Tukey, com nível de significância de 5 por cento. Todos os grupos (gel de flúor, oxalato de potássio e gel de ferro) não apresentaram diferenças significativas entre si para todas as condições testadas, exceto na presença da smear layer (p<0,05). Os produtos utilizados reduziram a permeabilidade dentinária, entretanto apresentaram baixa redução quando comparados à smear layer (p<0,05). Não houve diferença significativa na efetividade dos géis testados para reduzir a permeabilidade dentinária (p<0,05). Este estudo sugere que o gel de ferro promoveu redução na permeabilidade dentinária comparável à dos outros agentes e, portanto, pode ser considerada uma boa alternativa clínica para o tratamento da hipersensibilidade dentinária.


Subject(s)
Humans , Young Adult , Dentin Desensitizing Agents/pharmacology , Dentin Permeability/drug effects , Ferrous Compounds/pharmacology , Acidulated Phosphate Fluoride/pharmacology , Citric Acid/pharmacology , Dentin/drug effects , Gels , Hydrostatic Pressure , Materials Testing , Oxalates/pharmacology , Phosphoric Acids/pharmacology , Smear Layer , Time Factors
6.
Ciênc. Saúde Colet. (Impr.) ; 15(supl.2): 3175-3184, out. 2010. graf, tab
Article in Portuguese | LILACS | ID: lil-562860

ABSTRACT

Objetivou-se avaliar a relação entre o Índice de Massa Corporal (IMC) e o índice CPOD em 207 adolescentes de 12 anos, de 8 escolas públicas e particulares da região centro-oeste do estado de São Paulo. A amostra foi constituída por 380 adolescentes aos 12 anos, de ambos os gêneros, sendo examinados 207. Utilizou-se o índice CPOD, IMC para peso, medida de estatura, e aplicou-se questionário sobre hábitos alimentares, características antropométricas e atividade física. Quanto ao peso corpóreo, 55,93 por cento apresentaram normal (G4), 35,59 por cento de baixo peso (G3), 8,47 por cento de pré-obesos (G2), nas escolas particulares. Nas públicas, 52,03 por cento apresentaram normal, baixo peso 41,22 por cento, pré-obesos 4,73 por cento e obesos (G1) 2,03 por cento; não houve diferença significativa (p=0,45). Verificou-se que o CPOD nas escolas públicas foi 2,16 e nas particulares, 0,23 (p<0,05), sendo que 39,2 por cento das crianças estavam livres de cárie nas municipais e nas particulares, 88,1 por cento. Não houve correlação do maior IMC com o incremento de CPOD. Houve correlação negativa entre condições socioeconômicas e índice de cárie dentária. Concluiu-se que os grupos pré-obesos e obesos, embora houvesse maior frequência de ingestão de alimentos, não apresentaram correlação com o incremento de cárie dentária, mas as condições socioeconômicas foram determinantes para essa ocorrência.


The aim of the study was to evaluate the relationship between the Body Mass Index (BMI) and the DMFT index, in 207 adolescents aged 12 years old, from 8 public and private schools of the central west area of São Paulo State. From a sample of 380 12 year-old adolescents, both genders, 207 were examined. We used the index DMFT, CBI for weight, measured of stature and applied a questionnaire about alimentary habits, characteristic anthropometrics and physical activity. Regarding body weight, 55.93 percent was normal, 35.59 percent had low weight, and 8.47 percent were pre-obese in private schools. In the public schools, 52.03 percent had normal weight, 41.22 percent had low weight, 4.73 percent were pre-obese and 2.03 percent were obese, without significant difference (p=0.45). The DMFT of public schools was 2.16, compared to 0.23 in private schools (p<0.05), with 39.2 percent of caries-free individuals in public schools and 88.1 percent in private schools. There was no correlation between the increase in BMI and the increase in DMFT. There was negative correlation between socioeconomic conditions and dental caries. It was concluded that, even though the pre-obese and obese groups presented a higher frequency of food ingestion, obesity was not correlated with the increase in dental caries. However, the socioeconomic conditions were determinant for this occurrence.


Subject(s)
Adolescent , Child , Female , Humans , Male , Overweight/epidemiology , Body Mass Index , Brazil/epidemiology , Cross-Sectional Studies , DMF Index , Nutritional Status , Obesity/epidemiology , Prevalence
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