Abstract Objective: To measure the influence of oral health literacy (OHL) level in the improvement of knowledge about traumatic dental injuries (TDI) after an educational intervention. Material and Methods: A total of 257 parents of children aged 0-12 years had their OHL level evaluated (BREALD-30). A leaflet with information about how to respond to TDI Emergency was developed and delivered to the parents. A questionnaire about attitudes towards TDI was administered before (TDIQ1) and after (TDIQ2) parents read the educational leaflet. The hypotheses were evaluated by non-parametric tests, correlation analysis and logistic regression. Results: The mean OHL score was 21.6. The means of correct answers in TDIQ1 were 5.5 and 5.9 (p = 0.066) and in TDIQ2 were 6.6 and 7.7 (p=0.003) between the groups with inadequate and marginal/adequate OHL, respectively. In the logistic regression, the total score of BREALD-30 and the maximum number of correct answers in TDIQ2 maintained statistical association when adjusted for schooling, gender, age of the parents, family income and the number of correct answers in the first application of the questionnaire. Conclusion: The level of OHL influenced the improvement of parents’ knowledge about emergency care in cases of TDI in children from an educational intervention using a leaflet, and this intervention was more effective for parents with adequate OHL.

ABSTRACT Objective: To evaluate the effect of erosive challenges on the tooth- restoration interface of deciduous teeth treated with different adhesive protocols. Material and Methods: Deciduous molars were cut mesiodistally, then embedded, abraded and polished (n=80). Samples were randomly divided according to the adhesive system used into: G1 (Adper Single Bond2®, etch-and-rinse), G2 (Universal Single Bond®, self-etching), G3 (OptibondFL®, etch-and-rinse with Fluoride) and G4 (BondForce®, self-etching with Fluoride). After standardized cavity preparation (2 mm diameter x 2 mm depth), adhesive systems were applied and samples were restored (composite resin Z350®). Half of the samples were exposed to erosive/abrasive cycles (n = 10, each adhesive group), and the other half (control group; n = 10) remained immersed in artificial saliva. For microleakage analysis, samples were submersed in methylene blue and analyzed at 40x magnifications. Cross-sectional microhardness (CSMH) was carried out (50 g/5 s) at 25 μm, 50 μm, and 100 μm from the eroded surface and at 25 μm, 75 μm, and 125 μm from the enamel bond interface. Results: Regarding microleakage, 7.5% of the samples showed no dye infiltration, 30% showed dye infiltration only at the enamel interface, and 62.5% showed dye infiltration through the dentin-enamel junction, with no difference between groups (p≥0.05). No significant difference was observed in CSMH at different depths (two-way ANOVA, p≥0.05). Conclusions: We did not observe significant changes in microleakage or CSMH after erosive/abrasive challenges in deciduous teeth treated with different adhesive protocols (etch-and-rinse and self-etching adhesives, with and without fluoride).

The aim of the present study was to analyze dental research trends in Brazil over the past nine years. All abstracts presented at the 26th Annual Meeting of the Brazilian Society for Dental Research in 2009 (n = 2648) were classified based on field of knowledge, home institution and geographic region. Data were compared with those previously published based on abstracts presented at various meetings. Between 2001 and 2006, five fields of knowledge had a greater than 10% representation among the total number of studies. These fields included restorative dentistry/dental materials (RD/DM), periodontics, endodontics, pediatric dentistry and population-based oral health. In 2009, only RD/DM maintained a greater than 10% proportion of meeting abstracts, and basic fields comprised the second position among those fields with greater representation (9.8%). The majority of research studies were performed at public institutions, and the number of abstracts per state increased significantly in 2009 (Wilcoxon test, p < 0.001). The southeastern region of Brazil submitted the greatest number of abstracts; however, other regions also demonstrated increased participation in research (11%). The percentage distribution of abstracts between states remained constant (Wilcoxon test, p = 0.255; r s = 0.873). The results of the present study suggest a slight shift in the scientific research profile in Brazilian dentistry: fields related to professional disciplines have declined in relative research participation, while increasing interest has been observed in basic fields and new specialties.

OBJETIVO: Relatar o caso de um paciente com tetralogia de Fallot e sua condição bucal. DESCRIÇÃO DO CASO: Paciente do gênero masculino atendido no Curso de Especialização em Odontopediatria da Escola de Aperfeiçoamento Profissional da Associação Brasileira de Odontologia da seção Paraná dos cinco aos sete anos de idade. O exame clínico intrabucal inicial revelou quadro de cárie severa da infância. Durante o acompanhamento, verificou-se a erupção dos primeiros molares permanentes com a presença de defeitos de desenvolvimento de esmalte e perda de estrutura dental. À anamnese, a mãe relatou que o paciente foi portador de tetralogia de Fallot e que a cirurgia corretora foi realizada com um ano e 11 meses de idade. COMENTÁRIOS: A formação do esmalte dental dos primeiros molares permanentes ocorre a partir do primeiro mês de vida e é finalizada entre dois e quatro anos de idade. Neste caso, tal etapa coincidiu com o período anterior à cirurgia para correção da tetralogia de Fallot, fato que pode ter interferido negativamente no processo de mineralização dos primeiros molares permanentes. Os defeitos de desenvolvimento do esmalte podem levar a perda de estrutura dental, favorecendo o aparecimento da cárie dentária. Dessa forma, o odontopediatra deve realizar um diagnóstico precoce dessas alterações e intervir preventivamente para evitar a perda de tais dentes. Uma anamnese bem detalhada e a maior interação entre pediatras e odontopediatras podem proporcionar melhor acompanhamento de crianças com fatores de risco para apresentar defeitos de desenvolvimento do esmalte dentário.

OBJECTIVE: To report a case of a child with tetralogy of Fallot and his oral conditions. CASE DESCRIPTION: A male patient was assisted at the Pediatric Dentristry Specialization Course of the Brazilian Dentistry Association in the State of Paraná, Brazil, from five to seven years old. At the first intrabucal examination, the child presented a severe caries disease. During their treatment, enamel developmental defects were detected in the first permanent molar tooth, with loss of enamel structure. His mother reported that the patient had a surgical correction of tetralogy of Fallot cardiac malformation when he was 23 months old. COMMENTS: The enamel development of the first molar starts in the first month of life and ends around two to four years old. In this patient, the period of mineralization of the first molar was coincident with the period prior to the surgical correction of the cardiac problem. Probably, the development of dental enamel was impaired by the systemic repercussion of this congenital anomaly. Enamel developmental defects can present loss of dental structure, increasing the risk of caries. Therefore, the pediatric dentists should diagnose dental enamel developmental defects early, in order to prevent serious damages to the teeth. A detailed anamnesis and a good interaction between pediatricians and pediatric dentists will provide a better follow-up of children at risk of having dental enamel developmental defects.