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1.
Braz. dent. j ; 32(4): 62-73, July-Aug. 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1345511

ABSTRACT

Abstract This study aimed to evaluate the in vitro effect of a single application of experimental nanocomposite solutions on the prevention of dental caries around orthodontic brackets. The specimens were exposed to mesoporous silica (MS) nanocomposites containing fluoride by association with titanium tetrafluoride (TiF4) or sodium fluoride (NaF). Nanocomposites also could contain calcium and groups were described as MSCaTiF4, MSTiF4, MSCaNaF, MSNaF, and controls (TiF4, and NaF). Specimens were subjected to the formation of a multispecies biofilm to generate a cariogenic challenge. After 24h, both pH and total soluble fluoride concentration of the culture medium were assessed. Mineral loss was evaluated by percentage of surface mineral loss (%SML), mineral volume variation (ΔZ) of inner enamel and polarized light microscopy (PL). Linear (Ra) and volumetric (Sa) surface roughness and scanning electronic microscopy (SEM) were used to assess enamel topography. Statistical analyses were conducted considering p<0.05. MSNaF had the highest value of culture medium pH after cariogenic challenge, similarly to MSTiF4. All nanocomposite solutions released less fluoride than their controls NaF and TiF4 (p<0.05). All nanocomposite solutions presented lower %SML compared to their respective control groups (p<0.05). Lower Ra, Sa and ΔZ were observed for experimental groups compared to TiF4 (p<0.05). The results were confirmed by PL and SEM analysis. The experimental nanocomposite solutions contributed for lower enamel demineralization around orthodontic brackets.


RESUMO Este estudo teve como objetivo avaliar o efeito in vitro de uma única aplicação de soluções experimentais de nanocompósitos na prevenção de cárie dentária em braquetes ortodônticos. Os espécimes foram expostos a nanocompósitos de sílica mesoporosa (MS) contendo fluoreto por associação com tetrafluoreto de titânio (TiF4) ou fluoreto de sódio (NaF). Os nanocompósitos também podem conter cálcio e os grupos foram descritos como MSCaTiF4, MSTiF4, MSCaNaF, MSNaF e controles (TiF4 e NaF). Os espécimes foram submetidos à formação de um biofilme multiespécie para gerar um desafio cariogênico. Após 24h, o pH e a concentração de flúor solúvel total do meio de cultura foram avaliados. A perda mineral foi avaliada pela porcentagem de perda mineral superficial (% SML), variação do volume mineral (ΔZ) do esmalte interno e microscopia de luz polarizada (PL). A rugosidade superficial linear (Ra) e volumétrica (Sa) e a microscopia eletrônica de varredura (MEV) foram utilizadas para avaliar a topografia do esmalte. As análises estatísticas foram realizadas considerando p <0,05. MSNaF apresentou o maior valor de pH do meio de cultura após o desafio cariogênico, semelhante ao MSTiF4. Todas as soluções de nanocompósitos liberaram menos flúor do que seus controles NaF e TiF4 (p <0,05). Todas as soluções de nanocompósitos apresentaram% SML menor em comparação com seus respectivos grupos de controle (p <0,05). Ra, Sa e ΔZ menores foram observados para os grupos experimentais em comparação ao TiF4 (p <0,05). Os resultados foram confirmados por análises PL e SEM. As soluções experimentais de nanocompósitos contribuíram para a menor desmineralização do esmalte ao redor dos braquetes ortodônticos.


Subject(s)
Humans , Tooth Demineralization , Orthodontic Brackets , Dental Caries/prevention & control , Nanocomposites , Sodium Fluoride , Titanium , Cariostatic Agents , Dental Enamel , Fluorides
2.
Braz. dent. sci ; 24(2): 1-11, 2021. ilus
Article in English | LILACS, BBO | ID: biblio-1178387

ABSTRACT

The present case report describes a conservative and uncommon treatment for class III malocclusion in a woman growing patient with aged eight years and four months. An unconventional treatment modality was used for the treatment of this malocclusion, reverse-pull headgear and distalisation of lower teeth using mandibular cervical headgear in the lower arch. At the end of the treatment (after 33 months), there was correction of the transversal and sagittal occlusal relationship between maxilla and mandible and correct dental intercuspation (AU)


O presente relato de caso descreve um tratamento conservador e incomum para má oclusão de classe III em uma paciente em crescimento com idade de oito anos e quatro meses. Uma modalidade de tratamento não convencional foi utilizada que consistiu no uso de tração reversa maxilar e aparelho extra-bucal inferior para distalização. Ao final do tratamento (após 33 meses), houve correção da relação oclusal sagital e transversal entre maxila e mandíbula e correta intercuspidação dentária (AU)


Subject(s)
Humans , Female , Child , Orthodontics , Open Bite , Malocclusion, Angle Class III
3.
Dental press j. orthod. (Impr.) ; 26(1): e211967, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1154066

ABSTRACT

ABSTRACT Objective: Assess the influence of mono- and bicortical anchorage and diameter of mini-implants (MIs) on the primary stability of these devices. Methods: 60 self-drilling MIs were distributed in six groups according to diameter (1.5mm, 1.8mm or 2.0mm) and type of anchorage (monocortical and bicortical) in bovine rib. The primary stability was evaluated by insertion torque, micromobility and pull-out strength tests. ANOVA and/or Tukey analysis were used to conduct intergroup comparisons (p< 0.05). Non-parametric statistics (Kruskal-Wallis and Mann-Whitney) were performed when normality was not found (p< 0.05). Results: MIs with larger diameters and bicortical anchorage showed greater primary stability regarding insertion torque (p< 0.05) and micromobility (p< 0.05). Only MI diameter had an effect on the pull-out strength test. Larger diameter MIs presented better retention in pull-out strength tests (p< 0.001), regardless of mono- or bicortical anchorage. Conclusions: MI primary stability is dependent on its diameter and type of anchorage. Bicortical anchorage showed greater stability when compared with monocortical anchorage, independently of other variables.


RESUMO Objetivo: Avaliar a influência da ancoragem mono e bicortical e do diâmetro dos mini-implantes (MIs) na estabilidade primária desses dispositivos. Métodos: 60 MIs autoperfurantes foram distribuídos em seis grupos, de acordo com o diâmetro (1,5 mm, 1,8 mm ou 2,0 mm) e tipo de ancoragem (monocortical e bicortical), e inseridos em costela bovina. A estabilidade primária foi avaliada pelos testes de torque de inserção, micromobilidade e resistência à tração. ANOVA e/ou análise de Tukey foram usadas para realizar comparações intergrupos (p< 0,05). Estatística não paramétrica (Kruskal-Wallis e Mann-Whitney) foi realizada quando a normalidade não foi encontrada (p< 0,05). Resultados: MIs com diâmetros maiores e ancorados bicorticalmente apresentaram maior estabilidade primária em relação ao torque de inserção (p< 0,05) e micromobilidade (p< 0,05). Apenas o diâmetro do MI influenciou os resultados do teste de resistência à tração. MIs de maior diâmetro apresentaram melhor retenção nos testes de resistência à tração (p< 0,001), independentemente da ancoragem mono ou bicortical. Conclusões: a estabilidade primária do MI é dependente de seu diâmetro e tipo de ancoragem. A ancoragem bicortical apresentou maior estabilidade quando comparada à ancoragem monocortical, independentemente das demais variáveis.


Subject(s)
Humans , Cattle , Dental Implants , Orthodontic Anchorage Procedures , Palate , Palatal Expansion Technique , Torque
4.
Dental press j. orthod. (Impr.) ; 26(1): e21bbo1, 2021. tab, graf
Article in English | LILACS, BBO | ID: biblio-1154064

ABSTRACT

ABSTRACT Introduction: Orthodontic treatment in patients with traumatized teeth is a condition that needs good planning in order to achieve satisfactory results. Objective: To discuss approaches to orthodontic treatment of malocclusions associated with trauma followed by avulsion of anterior teeth, reimplanted after a short period of time. Case report: The treatment started with the distalization of upper posterior teeth, with the aid of mini-implants and sliding jigs, followed by the inclusion of anterior teeth in the arch, followed by intrusion of these teeth. Results: With the treatment, improved mobility of the anterior teeth was achieved, with better insertion into bone tissue. The most important factor for satisfactory treatment and a good prognosis for avulsion is the time the tooth remains outside the socket. Orthodontic treatment in patients with traumatized teeth is not contraindicated; however, clinical and radiographic aspects must be considered. Conclusion: Among the feasible orthodontic treatment options, the conservative approach can be a very favorable treatment alternative.


RESUMO Introdução: O tratamento ortodôntico em pacientes com dentes traumatizados é uma condição que necessita de um bom planejamento, a fim de se conseguir resultados satisfatórios. Objetivo: Discutir as abordagens de tratamento ortodôntico de más oclusões associadas ao trauma seguido de avulsão de dentes anteriores, reimplantados após curto espaço de tempo. Relato do Caso: O tratamento realizado iniciou-se com a distalização dos dentes posteriores superiores, com auxílio de mini-implantes e sliding jigs, seguida da inclusão dos dentes anteriores na arcada e intrusão desses dentes. Resultados: Com a realização do tratamento, conseguiu-se melhoria na mobilidade dos dentes anteriores, com inserção mais favorável no tecido ósseo. O fator mais importante para o tratamento satisfatório e um bom prognóstico da avulsão é o tempo em que o dente permanece fora do alvéolo. O tratamento ortodôntico em pacientes com dentes traumatizados não é contraindicado; porém, aspectos clínicos e radiográficos devem ser considerados. Conclusão: Entre as opções de tratamento ortodôntico factíveis, a abordagem conservadora pode ser uma opção de tratamento bastante favorável.


Subject(s)
Humans , Adult , Tooth Avulsion , Conservative Treatment , Malocclusion , Tooth Avulsion/complications , Tooth Avulsion/therapy , Tooth Avulsion/diagnostic imaging , Tooth Movement Techniques , Follow-Up Studies , Incisor/diagnostic imaging
5.
Braz. oral res. (Online) ; 35: e084, 2021. tab
Article in English | LILACS, BBO | ID: biblio-1285728

ABSTRACT

Abstract The objective of this work was to evaluate the relationship between factors associated with the COVID-19 pandemic and depression, anxiety, and stress (DAS) in dentists. Factors associated with the COVID-19 pandemic were evaluated using a questionnaire and scores of the Depression, Anxiety, and Stress Scales-21 were measured. The differences between the DAS scores based on the factors associated with the COVID-19 pandemic were tested through the successive application of multivariate analysis of variance (MANOVA, α = 0.05). After a sample size calculation, 998 participants with a mean age of 39.39 (± 11.69) years were included. The effect size indicated that changes in sleep quality (η2 = 0.161), eating habits (η2 = 0.057), and physical health (η2 = 0.051) were the ones that most negatively affected DAS scores. The highest DAS scores were observed in professionals who lived with someone at high-risk for COVID-19 (p < 0.001) and in those who did not engage in leisure activities during the pandemic (p < 0.001). Dentists who worked on the frontline against COVID-19 had higher scores of anxiety and stress (p = 0.029). The highest scores for anxiety, depression, and/or stress were seen in dentists living with someone at high-risk for COVID-19, who acts on the frontline, who does not practice in leisure activities during the pandemic, who completely changed eating habits, quality of sleep and physical health during the pandemic. In general, DAS levels of dentists were associated with factors related to the COVID-19 pandemic.


Subject(s)
Humans , Adult , Pandemics , COVID-19 , Anxiety/epidemiology , Dentists , Depression/epidemiology , SARS-CoV-2 , Middle Aged
6.
Article in English | LILACS, BBO | ID: biblio-1250451

ABSTRACT

ABSTRACT Objective: To evaluate genotoxicity of zinc oxide, P. A. calcium hydroxide, mineral trioxide aggregate and an iodoform paste using comet assay on human lymphocytes. Material and Methods: Two positive controls were used: methyl-methanesulfonate for the P.A. calcium hydroxide and mineral trioxide aggregate; and doxorubicin for the iodoform paste and zinc oxide. There were also two negative controls: distilled water for the P.A. calcium hydroxide and mineral trioxide aggregate; and DMSO for the iodoform paste and zinc oxide. Comets were identified using fluorescence microscopy and 100 of them were counted on each of the three slides analyzed per drug test. A damage index was established, taking into consideration the score pattern that had previously been determined from the size and intensity of the comet tail. Analysis of variance, followed by Tukey's test, was used to compare the means of the DNA damage indices. Results: The DNA damage index observed for mineral trioxide aggregate (7.08 to 8.58) and P.A. calcium hydroxide (6.50 to 8.33), which were similar to negative control index. On the other hand, damage index for zinc oxide (104.7 to 218.50) and iodoform paste (115.7 to 210.7) were similar to positive control index. Conclusion: Iodoform paste and zinc oxide showed genotoxicity at all concentrations used.


Subject(s)
Humans , Tooth, Deciduous , Zinc Oxide , Comet Assay , Genotoxicity , Mutagenicity Tests/instrumentation , Zinc Oxide , Brazil , Calcium Hydroxide , Analysis of Variance , Microscopy, Fluorescence
7.
Hematol., Transfus. Cell Ther. (Impr.) ; 42(4): 341-347, Oct.-Dec. 2020. tab, graf, ilus
Article in English | LILACS | ID: biblio-1142965

ABSTRACT

ABSTRACT Objective: The aims of this study were to identify the main characteristics regarding the shape and size of the craniofacial region in patients with sickle cell anemia (SCA) and sickle cell trait (SCT) and in unaffected patients using geometric morphometrics and to check the efficiency of this method. Material and Methods: A cross-sectional analytical study of 45 patients (15 in each group) was performed. Lateral radiographs of the skull were used for the analysis. Seventeen landmarks and semilandmarks were placed for the measurements. The Pocrustes analysis of variance (ANOVA), regression analysis, multivariate analysis of variance, canonical variate analysis, Mahalanobis and Procrustes distances and unweighted pair group method with arithmetic mean (UPGMA) clustering were performed. Allometric effects and sex characteristics were not statistically significant (p> 0.05). Results: There were, however, significant differences (p< 0.05) in craniofacial shape among SCA, SCT and unaffected individuals. Those with SCA showed variations in the shape of the external auditory meatus and at the base of the occipital bone, in addition to the mandibular setback and upper incisor inclination, with a tendency towards prognathism. The individuals with SCT exhibited a similar craniofacial shape to those with SCA, but with slighter variations. Moreover, those with SCT were statistically closer in resemblance to unaffected individuals, given that SCT is not regarded as a disease. Conclusion: This demonstrates the efficiency of geometric morphometrics in the categorization of the assessed groups.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Sickle Cell Trait , Skull/anatomy & histology , Cell Shape , Anemia, Sickle Cell
8.
Article in English | LILACS, BBO | ID: biblio-1135480

ABSTRACT

Abstract Objective: To evaluate the influence of cavosurface vestibular bevel (CSVB) application on the clinical success (CS) of class IV restorations of traumatized permanent teeth, the influence of the number of fracture angles and dental trauma recurrence (DTR) on the restorations retention rate (RRR) and incidence of pulp necrosis (PN). Material and Methods: Fifty-seven children and adolescents with enamel and dentin fractures requiring C-IV restorations were randomly allocated in groups with CSVB and without CSVB. The primary outcomes were the CS of restorations, evaluated using modified USPHS criteria, and the incidence of PN after a 6-months follow-up. As secondary outcomes, the influence of the number of fractured angles and the DTR on the RRR and on the incidence of PN were evaluated (p>0.05). Results: Of 57 children and adolescents, 74 teeth were restored, and 71 completed the six-month follow-up analysis. Teeth restored with and without CSVB displayed similar CS as well as the same incidence of PN (p>0.05). The number of fractured angles did not influence the RRR and DTR was not associated with PN (p>0.05). DTR was associated with a lower RRR (p<0.001). Conclusion: Cavosurface vestibular bevel did not influence the clinical success of Class IV restorations or incidence of PN after 6-months follow-up. DTR did not influence the incidence of pulp necrosis, but did negatively influence the restorations retention rate. The number of fracture angles did not influenced in the restorations retention rate.


Subject(s)
Humans , Male , Female , Child , Adolescent , Tooth Fractures/diagnostic imaging , Randomized Controlled Trial , Composite Resins/chemistry , Dental Restoration Failure , Dental Restoration, Permanent , Brazil/epidemiology , Chi-Square Distribution , Dental Pulp Necrosis , Dental Enamel
9.
Braz. oral res. (Online) ; 34: e049, 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1132727

ABSTRACT

Abstract This study aimed to evaluate adolescents' aesthetic perceptions and their social judgments regarding different enamel opacities. Sample size was calculated and resulted in the inclusion of 100 adolescents (aged 10 to 15 years) from a public school in Jequié, Bahia, Brazil. Images of enamel opacities were manipulated to create aesthetic enamel defects, such as enamel color changes (unilateral and bilateral white opacity, unilateral and bilateral yellowish opacity, and unilateral and bilateral yellowish opacity with loss of structure). The images of the opacities were based on Fédération Dentaire Internationale's Developmental Defects of Enamel (DDE) Index. Aesthetic perception and social judgments were evaluated using a validated questionnaire with 12 questions (six positive and six negative points) on social aspects, considering the six manipulated images and the control. The photographic analyses were projected one-by-one by computer to adolescents individually in a classroom. Participants had one minute to observe each image and answer the questionnaire. The data were analyzed by descriptions, and the Friedman Wilcoxon test (p < 0.05). The results indicate that all opacities negatively impacted social judgment (p < 0.001). The enamel aesthetic defects most affecting an individual's perception were bilateral yellow opacity with or without loss of structure (p < 0.001). Regarding social judgment, all participants showed a negative perception of all the tested opacity types (p < 0.001). In conclusion, even opacities presenting only a color change caused aesthetic dissatisfaction to the individuals and changes in their social judgment toward others. Color changes in dental enamel have several aesthetic consequences.


Subject(s)
Humans , Male , Female , Child , Adolescent , Social Perception , Tooth Discoloration/psychology , Esthetics, Dental/psychology , Judgment , Reference Values , Sex Factors , Surveys and Questionnaires , Adolescent Behavior/physiology , Dental Enamel
10.
Braz. dent. sci ; 23(1): 1-8, 2020. tab, ilus
Article in English | LILACS, BBO | ID: biblio-1049723

ABSTRACT

Objective: Facial appearance has become an important factor of social interaction. The perception of patients regarding the changes promoted by treatment has become a focus of study today. Thus, the proposal of the present study was to evaluate the esthetic perception of lay people regarding esthetic periodontal changes. Method: The total sample comprised 180 individuals divided into three different age groups (15-19, 35-44, and 65-74 years). Nine images with digital alterations in the gingival contour were used. One of the images served as an esthetic standard for the research (ideal image). The images were presented to the evaluators using slide show software (Microsoft PowerPoint 2013, Microsoft, California). Was used the Wilcoxon, Kruskal-Wallis and Mann-Whitney test. The level of significance was 5% (α = 0.05). Results: Statistical differences were found between the esthetic perception of different age groups. The sample was composed only of lay people of three different age groups, and it was evident that the younger age group has a more accurate perception regarding changes in the gingival contour. Conclusion: The changes in the gingival contour perceived as less attractive were the changes between the central incisors. The younger age group had a more accurate esthetic perception in this study. (AU)


Introdução: A aparência facial tornou-se um fator importante de interação social. A percepção dos pacientes quanto as alterações promovidas pelo tratamento tem se tornado foco de estudo na atualidade. Dessa forma a proposta do presente estudo foi avaliar a percepção estética de leigos em relação às alterações estéticas periodontais. Metodologia: A amostra total foi composta por 180 indivíduos divididos em três faixas etárias diferentes (15-19, 35-44, 65-74). Foram utilizadas 09 imagens com alterações digitais no contorno gengival, sendo que uma delas serviu como padrão estético para a pesquisa (imagem ideal). As imagens foram apresentadas aos avaliadores usando o software de apresentação de slides (Microsoft PowerPoint 2013, Microsoft, Califórnia). Foi utilizado o teste de Wilcoxon, Kruskal-Wallis e MannWhitney. O nível de significância foi de 5% (α = 0,05). Resultados: Foram encontradas diferenças estatísticas entre a percepção estética dos grupos de diferentes faixas etárias. Na amostra composta apenas por pessoas leigas de 3 diferentes faixas etárias, ficou evidente que a faixa etária mais jovem tem uma percepção mais apurada em relação às alterações no contorno gengival. Conclusão: As alterações no contorno gengival percebidas como menos atraentes foram as alterações entre os incisivos centrais. A faixa etária mais jovem teve uma percepção estética mais precisa neste estudo.(AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Aged , Young Adult , Perception , Esthetics, Dental , Physical Appearance, Body , Gingiva , Cross-Sectional Studies , Sex Distribution , Age Distribution
11.
J. appl. oral sci ; 28: e20200131, 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1134780

ABSTRACT

Abstract Objective There is increasingly common the consumption more times a day of foods and acidic drinks in the diet of the population. The present study aimed to evaluate and compare the effects of a calcium mesoporous silica nanoparticle single application of other calcium and/or fluoride products in reducing the progression of dental erosion. Methodology Half of the eroded area was covered of 60 blocks of enamel, after which the block was submitted to the following treatments: (Ca2+-MSN), casein phosphopeptide-amorphous calcium phosphate (CPP-ACP); CPP-ACP/F-(900 ppm F−); titanium tetrafluoride (TiF4 1%) (positive control); sodium fluoride (NaF 1.36%) (positive control); and Milli-Q® water (negative control) before being submitted to a second erosive challenge. A surface analysis was performed via a three-dimensional (3D) noncontact optical profilometry to assess the volumetric roughness (Sa) and tooth structure loss (TSL) and and through scanning electron microscopy (MEV). An analysis of variance (ANOVA) and Tukey's test were performed. Results Regarding Sa, all experimental groups exhibited less roughness than the control (p<0.05). The TSL analysis revealed that the Ca2+-MSN and NaF groups were similar (p>0.05) and more effective in minimizing tooth loss compared with the other groups (p<0.05). Conclusions The Ca2+-MSN and NaF treatments were superior compared with the others and the negative control.


Subject(s)
Humans , Tooth Erosion , Tooth Remineralization , Nanoparticles , Sodium Fluoride , Caseins , Calcium , Silicon Dioxide , Fluorides
12.
Braz. dent. sci ; 23(4): 1-7, 2020. ilus
Article in English | LILACS, BBO | ID: biblio-1122339

ABSTRACT

The objective of this paper is to report a clinical case of a patient who after installing an orthodontic mini-implant returned to the dental office seven days later with a severe hemorrhage where it was inserted. Because of the severe character of the hemorrhage, the mini-implant was removed, local compression was performed, medication to control bleeding was given and some lab tests were requested. The patient returned in 24 hours with diagnosis of dengue hemorrhagic fever (DHF). The patient was referred to the specialized hematology service where the diagnosis was confirmed. Past the critical period, a new mini-implant was inserted to continue the orthodontic treatment. It can be concluded from this account that despite the mini-implants being devices of simple installation and easy removal, it is important that the patient's systemic conditions are optimal for their overall effectiveness (AU)


The objective of this paper is to report a clinical case of a patient who after installing an orthodontic mini-implant returned to the dental office seven days later with a severe hemorrhage where it was inserted. Because of the severe character of the hemorrhage, the mini-implant was removed, local compression was performed, medication to control bleeding was given and some lab tests were requested. The patient returned in 24 hours with diagnosis of dengue hemorrhagic fever (DHF). The patient was referred to the specialized hematology service where the diagnosis was confirmed. Past the critical period, a new mini-implant was inserted to continue the orthodontic treatment. It can be concluded from this account that despite the mini-implants being devices of simple installation and easy removal, it is important that the patient's systemic conditions are optimal for their overall effectiveness (AU)


Subject(s)
Humans , Adult , Dengue , Orthodontic Anchorage Procedures , Hemorrhage
13.
Biosci. j. (Online) ; 35(5): 1614-1621, sept./oct. 2019. ilus, tab, graf
Article in English | LILACS | ID: biblio-1049068

ABSTRACT

To evaluate the influence of mesofacial, brachyfacial and dolichofacial facial patterns on giving an individual the profile of a crime suspect in the eyes of public security agents.This study had a cross-sectional design, conducted with public security agents of both sexes (n=100), where images of facial composites (police sketches) of individuals with different facial patterns (mesofacial, brachyfacial and dolichofacial) were used. With these images in hand, a questionnaire was created, divided into three parts: the first in which all the images were presented together, allowing comparison among them; the second, in which each image was evaluated separately followed by questions and the third that consisted on a visual analog scale that presented a bar with marks going from 0 to 100, where 0 represented the untrustworthy individual, 50 the individual who could be trusted, and 100 a very trustworthy individual. When all the data had been obtained statistical analyses were performed using the Chi-square and Friedman tests. The level of significance adopted was 5% (α=0.05). The dolichofacial individual was associated with security agents as the most prone to commit crimes and became more insecure and distrustful when compared to the mesofacial and brachyfacial individuals (p <0.001). The dolichofacial profile had a negative influence on the judgment of security agents who attributed to it, a character suspected of a crime and a low level of trustworthiness


Avaliar a influência dos padrões faciais mesofacial, braquifacial e dolicofacial em conceder um perfil de suspeito a cometer crimes aos olhos dos agentes de segurança pública. Este estudo teve delineamento transversal, realizado com agentes de segurança pública de ambos os sexos (n = 100), onde imagens de retratos- falados de indivíduos com diferentes padrões faciais (mesofacial, braquifacial e dolicofacial) foram utilizadas. De posse dessas imagens, foi criado um questionário, dividido em três partes: a primeira em que todas as imagens foram apresentadas juntas, permitindo a comparação entre elas; a segunda, em que cada imagem foi avaliada separadamente seguida de perguntas e a terceira consistiu em uma escala analógica visual que apresentava uma barra com marcações de 0 a 100, onde 0 representava o indivíduo não confiável, 50 o indivíduo em quem se podia confiar, e 100 um indivíduo muito confiável. Após a obtenção dos dados, foram realizadas análises estatísticas utilizando os testes Qui-quadrado e Friedman. O nível de significância adotado foi de 5% (α = 0,05). O indivíduo dolicofacial foi associado pelos agentes de segurança como o mais propenso a cometer crimes e passou mais insegurança e desconfiança, quando comparado aos indivíduos mesofacial e braquifacial (p<0,001). O perfil dolicofacial influenciou negativamente no julgamento dos agentes de segurança que atribuíram-lhe caráter suspeito a cometer crimes e baixo grau de confiabilidade.


Subject(s)
Social Perception , Crime , Face , Judgment
14.
Int. j. odontostomatol. (Print) ; 13(3): 292-298, set. 2019. tab, graf
Article in English | LILACS | ID: biblio-1012425

ABSTRACT

ABSTRACT: This case describes the treatment of Class II malocclusion in a patient missing one of the maxillary central incisors due to traumatic impaction. The treatment approach consisted in the extraction of the remaining maxillary central incisor, followed by diastema closure and re-anatomization of lateral incisors into central incisors. The results obtained were considered satisfactory concerning occlusal, aesthetic and functional aspects. This therapeutic approach may be used as an alternative for similar cases.


RESUMEN: Este caso clínico describe el tratamiento de la mala oclusión de Clase II en un paciente con ausencia de uno de los incisivos centrales superiores debido a impactación. El abordaje del tratamiento consistió en la extracción de este elemento dental y del otro incisivo central, seguido del cierre de los diastemas y reanatomización de los incisivos laterales en incisivos centrales. Los resultados obtenidos fueron considerados satisfactorios con relación a los aspectos oclusales, estéticos y funcionales. Así, esta planificación se puede utilizar como una nueva alternativa de abordaje terapéutico para estos casos.


Subject(s)
Humans , Female , Adult , Orthodontics, Corrective/methods , Tooth Movement Techniques/methods , Malocclusion, Angle Class II/surgery , Tooth Extraction , Radiography, Panoramic , Cephalometry , Treatment Outcome
15.
Rev. Cient. CRO-RJ (Online) ; 4(1): 114-119, Jan.-Apr. 2019.
Article in English | LILACS, BBO | ID: biblio-1024353

ABSTRACT

Introduction: The primary dentition is extremely important, because besides the importance during chewing, acts as a guide to eruption for permanent teeth, stimulates the bone growth and helps in digestion and phonation. In cases of premature loss, it is necessary that the professional make adequate planning to space maintenance, so that it is not lost until the eruption of the permanent successor, thus avoiding the establishment of malocclusions. Objective: To describe the clinical steps for preparation and placement of a direct bonded space maintainer, as well as the follow-up until the eruption of the successor tooth. Case report: Girl, eight years old, presented an adjacent fistula to theprimary mandibular right second molar. After clinical and radiographic evaluation, tooth extraction was indicated, due to the impossibility of performing the endodontic treatment. A direct bonded space maintainer was made and installed as an alternative to the band and loop, commonly used in these cases of unilateral loss. Conclusion: The direct bonded space maintainer was a good option for the case presented, as it was able to fulfill its function until the eruption of the successor tooth. It is a good alternative in clinical practice due to the time optimization and material savings it provides.


Introdução: A dentição decídua é de extrema importância, pois exerce função mastigatória, atua como guia de erupção para os dentes permanentes, estimula o crescimento ósseo e auxilia na digestão e fonação. Em casos de perda prematura de algum dente, é necessário que o profissional faça um planejamento adequado para manutenção do espaço, de forma que este não seja perdido até a erupção do sucessor permanente, evitando assim o estabelecimento de más-oclusões. Objetivo: Descrever as etapas clínicas para confecção e instalação do aparelho mantenedor de espaço adesivo, bem como o acompanhamento até a erupção do sucessor. Relato do caso: Menina, 8 anos, apresentou fístula adjacente ao segundo molar inferior direito decíduo. Após avaliação clínica e radiográfica, foi indicada a exodontia do dente, devido à impossibilidade de realizar o tratamento endodôntico. Confeccionou-se e instalou-se o aparelho mantenedor de espaço adesivo, como uma alternativa ao banda-alça, comumente utilizado nesses casos de perda unilateral. Conclusão: O mantenedor de espaço colado foi uma boa opção para o caso apresentado, pois foi capaz de cumprir sua função até a erupção do dente sucessor, constituindo-se uma boa alternativa na prática clínica, devido à otimização do tempo e economia de material que proporciona.


Subject(s)
Pediatric Dentistry , Space Maintenance, Orthodontic , Surgery, Oral , Tooth, Deciduous , Child , Tooth Loss , Molar
16.
Braz. dent. sci ; 22(2): 190-196, 2019. ilus
Article in English | LILACS, BBO | ID: biblio-996380

ABSTRACT

Objective: was to evaluate the influence of mentoplasty on esthetic perception of dental surgeons, dental students and lay persons. In addition, to determine whether the outstanding chin affects the perceived desire for orthognathic surgery. Material and Methods: An image of an ideal silhouette was created. This image was manipulated to create another six images with different degrees of retrogenia and progenia in increments, advancing and receding the chin on a scale of 5 mm (from +15 to -15 mm) in the anteroposterior and vertical directions. Once the images were obtained, a questionnaire was created, which was evaluated by lay persons, dental surgeons and dental students (n = 50). The evaluators used a visual analog scale to analyze the images, establishing a score ranging from 0 to 10. Associated with the scale, the evaluators were asked whether they wished to have some surgical correction performed if the image in question were a representation of their own facial profile. Results: demonstrated that image H (0 mm) was ranked as the most attractive by the dental surgeons, while the dental students and lay persons scored B (-5 mm) as the best image. In general, images A (+15 mm) and D (-15 mm) were those that most induced a desire for corrective surgery. Conclusion: the prognathic and retrognathic facial profiles were unpleasant and perceptible to the dentist, dental student and lay person. The more projected and retracted the chin was, the greater was the desire to have orthognathic surgery performed. (AU)


Objetivo: avaliar a influência da mentoplastia na percepção estética de cirurgiões-dentistas, estudantes de Odontologia e leigos. Além de determinar se o destaque do mento afeta o desejo percebido ORIGINAL ARTICLE Effect of mentoplasty on esthetic perception of dental surgeons, dental students and lay persons Efeito da mentoplastia na percepção estética de cirurgiões-dentistas, estudantes de odontologia e leigos Matheus Melo PITHON1 , Diego Oliveira GUEDES1 , Solane Domingues LEAL1 ,Maria Luiza Anselmo da SILVA1 , Raphaela Rodrigues DANTAS1 , Ketlly Cruz da Cunha PELEGRINI1 , Raildo da Silva COQUEIRO2 1 - Southwest Bahia State University ( UESB) - Vitória da Conquista ­ BA - Brazil. 2 - Federal University of Santa Catarina (UFSC) - Florianópolis ­ SC - Brazil. doi: 10.14295/bds.2019.v22i2.1687 UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO" Instituto de Ciência e Tecnologia Campus de São José dos Campos Ciência Odontológica Brasileira por cirurgia ortognática. Material e Métodos: a imagem de uma silhueta ideal foi manipulada para criar outras seis imagens com diferentes graus de retrogenia e progenia em incrementos, avançando e recuando o mento numa escala de 5 mm (de +15 a -15 mm) nos sentidos ântero-posterior e vertical. De posse dessas imagens criou-se um questionario que foi avaliado por leigos, Cirurgiões-Dentistas e estudantes de Odontologia (n = 50). Os avaliados utilizaram uma escala visual analógica para analisar as imagens, estabelecendo nota que variam de 0 a 10. Associado a escala os avaliadores foram questionados se eles teriam vontade de realizar alguma correção cirúrgica caso aquela imagem representasse o seu próprio perfil facial. Resultados: demostraram que a imagem H (0 mm) foi ranqueada como a mais atratativa pelos cirurgiões dentistas, enquanto os estudantes de odontologia e pessoas leigas pontuaram a B (-5 mm) como a melhor. De forma geral, as imagens A (+15 mm) e D (-15 mm) foram as que mais induziram o desejo por cirurgia corretiva. Conclusão: o perfil facial prognata e retrognata é desagradável e perceptível para o dentista, o estudante de odontologia e o leigo. Quanto mais projetado e retruido for o mento maior o desejo pela realização de cirurgia ortognática. (AU)


Subject(s)
Esthetics, Dental , Face , Genioplasty
17.
Braz. j. oral sci ; 18: e191432, jan.-dez. 2019. ilus
Article in English | LILACS, BBO | ID: biblio-1087498

ABSTRACT

Knowledge about the diagnosis and treatment of traumatic dental injuries (TDIs) is extremely important in improving the prognosis of such cases. Aim: To evaluate the knowledge of dental students and professionals about the management of TDIs, and the factors that influence this knowledge, through a literature review. Methods: An electronic search was performed in the PubMed database, with no language or date restrictions. Studies that evaluated the knowledge of dental students or professionals about the management of TDIs were considered eligible. Results: From a total of 1902 retrieved papers, 36 full-texts were assessed for eligibility, and 31 were included in this review. All studies evaluated TDI knowledge through questionnaires; 15 of them only concerned tooth avulsion. In general, knowledge about TDI treatment, both in deciduous and permanent dentition, was considered to be low or moderate. Individual factors (age and gender), professional factors (postgraduate degree, qualification time and place of work), and previous TDI knowledge (attendance frequency, previous education and self-judgment about the knowledge) influenced the knowledge and the frequency of correct answers. Conclusion: Dentistry student and professional knowledge about TDIs is not satisfactory


Subject(s)
Humans , Male , Female , Students, Dental , Tooth Injuries , Knowledge
18.
Rev. Cient. CRO-RJ (Online) ; 4(3): 43-53, 2019.
Article in English | LILACS, BBO | ID: biblio-1052430

ABSTRACT

Introduction: To evaluate the quality of life related to oral health is of paramountimportance, since there are few studies evaluating the OHRQoL (Oral health relatedquality of life) in children of 5 and 6 years. This study aimed to evaluate the impactof caries disease and traumatic dental injuries (TDI) on oral health related qualityof life (OHRQoL) in children of 5 and 6 years of age according to the self reportand the secondary report of the parents, as well as ascertain the agreementbetween them. Methods: A cross-sectional study with 238 children and theircaregivers attended at health units and public schools in the municipality ofJequié (BA), Brazil. After an interview, the children were submitted to oral clinicalexamination to investigate the presence or absence of caries experience and TDI.For data collection, the Scale of Oral Health Outcomes for 5-year-old children (B-SOHO-5) and a sociodemographic questionnaire were used. Differences in OHRQoLscores between sociodemographic and clinical characteristics were comparedusing the Mann-Whitney and Kruskal-Wallis tests. The agreement of the responsesbetween children and parents was compared using Kappa statistics (> 0.60). Thedifference between the total scores of the children and the parents was examinedwith the Wilcoxon test; the Lin coefficient of agreement and the Bland and Altmanmethod were used as measures of agreement. A significance level of 5% ( = 0.05)was adopted. Results:There was a significant association (p< 0.05) between cariesand TDI with OHRQoL according to the children's perception. There was significantmismatch / mismatch between the reports of the child-father and the mother-child pairs in relation to the child's OHRQoL. Conclusion: Caries disease and TDIshave a negative impact on OHRQoL according to the perception of only thechildren. Research has pointed out that parents are not reliable sources forassessing their child's OHRQoL.


Introdução: Avaliar a qualidade de vida relacionada a saúde bucal é de sumaimportância, visto que são escassos os estudos que avaliam a QVRSB (Qualidadede vida relacionada a saúde bucal) em crianças de 5 e 6 anos. Este estudo tevecomo objetivo avaliar o impacto da doença cárie e das lesões dentáriastraumáticas (TDI) na qualidade de vida relacionada à saúde bucal (QVRSB) emcrianças de 5 e 6 anos de idade de acordo com o autorrelatoe o relato secundáriodos pais, assim como averiguar a concordância entre eles. Métodos: Estudotransversal, realizado com 238 crianças e seus responsáveis atendidos em unidadesde saúde e escolas da rede pública do município de Jequié (BA), Brazil. Após aentrevista, as crianças foram submetidas a exame clínico oral para investigar apresença ou ausência de experiência de cárie e IDT. Para a coleta de dados foramusados a Scale of Oral Health Outcomes for 5-year-old children (B-SOHO-5) e umquestionário sóciodemográfico. As diferenças nos escores de QVRSB entre ascaracterísticas sociodemográficas e clínicas foram comparadas por meio dostestes Mann-Whitney e Kruskal-Wallis. Comparou-se a concordância das respostasentre crianças e pais por meio da estatística Kappa (> 0,60). A diferença entre osescores totais das crianças e dos pais foi examinada com o teste de Wilcoxon; ocoeficiente de concordância de Lin e o método de Bland e Altman foram usadoscomo medidas de concordância. Foi adotado nível de significância de 5% ( =0,05). Resultados: Houve associação significativa (p< 0,05) entre a cárie e a TDIde acordo a percepção das crianças. Ocorreu discordância/pobre concordânciasignificativa entre os relatos dos pares criança-pai e criança-mãe com relação àQVRSB da criança. Conclusão: A doença cárie e as TDI causam impacto negativona QVRSB de acordo com a percepção apenas das crianças. A pesquisa apontouque os pais não são fontes confiáveis para avaliar a saúde bucal do seu filho.


Subject(s)
Oral Health , Quality of Life , Child, Preschool , Tooth Injuries , Dental Caries
19.
Rev. Cient. CRO-RJ (Online) ; 3(3): 62-66, Sept.-Dec. 2018.
Article in English | LILACS, BBO | ID: biblio-1022032

ABSTRACT

Introduction: To evaluate the influence of the vertical position of the lower anterior teeth in the aesthetic perception of the smile of Afro-descendent laypeople from different age groups. Materials and Methods: A standard smile was constructed from intraoral photographs of an afro-descendent individual. The vertical position of the lower anterior teeth was gradually changed by moving the teeth up and down within the lip frame in 0.5 mm increments ranging from -1.5 mm to 2.0 mm, regarding point zero. Using a visual analog scale, 150 Afro-descendent Brazilian lay individuals from three different age groups (15-19, 35-44 and 65-74) rated the attractiveness in relation to 8 smiles with altered gingival exposure. Results: There were no significant differences (p>0.05) between male and female raters for the three groups. All the age groups assigned higher scores for the smiles with 0.5 mm coverage of the lower lip on the lower central incisors. However, for the less attractive smiles, there were differences in the opinions of the age groups (p<0,05). Conclusions: the age groups shared similar preferences regarding the most pleasant smile regarding the vertical positions of the lower anterior teeth.


Introdução: Avaliar a influência da posição vertical dos dentes anteriores inferiores na percepção estética do sorriso de leigos afrodescendentes de diferentes faixas etárias. Materiais e Métodos: Um sorriso padrão foi construído a partir de fotografias intraorais de um indivíduo afro-descendente. A posição vertical dos dentes anteriores inferiores foi gradualmente alterada, movendo os dentes para cima e para baixo dentro da moldura do lábio em incrementos de 0,5 mm variando de -1,5 mm a 2,0 mm, em relação ao ponto zero. Utilizando uma escala analógica visual, 150 indivíduos leigos afrodescendentes brasileiros de três diferentes faixas etárias (15-19, 35-44 e 65-74) classificaram a atratividade em relação a 8 sorrisos com exposição gengival alterada. Resultados: Não houve diferenças significativas (p> 0,05) entre os avaliadores masculino e feminino para os três grupos. Todos os grupos etários atribuíram pontuações mais altas para os sorrisos com cobertura de 0,5 mm do lábio inferior nos incisivos centrais inferiores. No entanto, para os sorrisos menos atraentes, houve diferenças nas opiniões dos grupos etários (p <0,05). Conclusão: os grupos etários compartilhavam preferências semelhantes quanto ao sorriso mais agradável em relação às posições verticais dos dentes anteriores inferiores.


Subject(s)
Esthetics, Dental , Perception , Smiling , African Continental Ancestry Group
20.
Dental press j. orthod. (Impr.) ; 23(5): 65-74, Sept.-Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-975017

ABSTRACT

ABSTRACT Objective: The aim of this study was to evaluate the degree of perception of attractiveness of the smile among dentists, dental students, and lay persons in cases of agenesis of the maxillary lateral incisors replaced by canines for space closure. Methods: A smiling front view extraoral photograph of a 20-year-old woman was digitally altered simulating agenesis and its treatment, by means of: repositioning, reshaping or bleaching the canine, and gingival contour. A questionnaire was distributed to individuals of the three groups (n= 150), with a view to evaluating their degree of esthetic perception. An attractiveness scale was also used, with '0' representing unattractive and '10', very attractive. Results: In the comparative evaluation among all the photographs, the original image obtained the highest level of acceptance. Photograph 'i' (agenesis of both lateral incisors treated with reposition and reshaping of the canines) was ranked as the least attractive by the dentists, whereas the student and lay persons ranked photograph 'f' (agenesis of both lateral incisors treated with reposition of the canines, gingival contour, bleaching and reshaping) as the worst. Conclusion: The methods of treatment most accepted among the dentists and students were those that involved changes in the gingival contour, whereas among lay persons, they were those that involved only reshaping.


RESUMO Objetivo: o objetivo do presente estudo foi avaliar o grau de percepção da atratividade do sorriso por dentistas, estudantes de Odontologia e leigos, em casos de agenesia dos incisivos laterais superiores substituídos por caninos, para fechamento do espaço. Métodos: uma fotografia extrabucal frontal do sorriso de uma mulher com 20 anos de idade foi alterada simulando agenesia e seu tratamento por meio de: reposicionamento do canino, remodelação, clareamento ou contorno gengival. Um questionário foi distribuído aos indivíduos dos três grupos (n= 150), com o objetivo de avaliar o grau de percepção estética. Uma escala de atratividade também foi usada, com '0' representando pouco atraente e '10', muito atraente. Resultados: na avaliação comparativa entre as fotografias, a imagem original obteve o maior nível de aceitação. A fotografia "i" (agenesia de ambos os incisivos laterais tratada com reposição e remodelação dos caninos) foi classificada como a menos atraente pelos dentistas, enquanto os estudantes e os leigos classificaram a "f" (agenesia de ambos os incisivos laterais tratada com reposição dos caninos, contorno gengival, clareamento e remodelação) como a pior. Conclusão: os métodos de tratamento mais aceitos entre dentistas e estudantes foram aqueles que envolviam mudanças no contorno gengival, enquanto entre os leigos foram aqueles que envolviam apenas remodelação.


Subject(s)
Humans , Male , Female , Adult , Young Adult , Orthodontic Space Closure/psychology , Cuspid/anatomy & histology , Esthetics, Dental/psychology , Smiling , Beauty , Surveys and Questionnaires , Tooth Crown/anatomy & histology , Photography, Dental , Incisor/abnormalities , Anodontia/therapy
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