Objetivos: Avaliar as reações emocionais antes e após a aplicação de um livro audiovisual infantil que ilustra os pontos desencadeadores de medo e ansiedade na consulta odontológica. Além disso, verificou-se o efeito educativo desse livro como condicionamento prévio ao atendimento dental. Métodos: A pesquisa é um estudo piloto prospectivo conduzido na Universidade Comunitária da Região de Chapecó, com amostra de conveniência de 20 crianças entre 4 a 6 anos de idade, com e sem experiência odontológica anterior. Todas essas crianças receberam o livro e foram avaliadas antes e após a apresentação desse pelos seus responsáveis. Aplicou-se o teste projetivo de FIS (Facial Image Scale), em 2 etapas no mesmo dia do atendimento. Os dois testes foram aplicados na recepção: antes da criança entrar em contato com o livro na sala anexa à clínica odontológica e após a criança entrar em contato com o instrumento lúdico. Foi realizada a anamnese e exame clínico no consultório odontológico pela odontopediatra para iniciar ou dar continuidade ao tratamento. Resultados: As crianças foram capazes de responder o teste projetivo com auto-análise. O livro audiovisual idealizado foi construído com sucesso e utilizado na pesquisa. A comparação entre FIS 1 e FIS 2 feito com teste-t pareado apresentou melhoras significativas comparando-se o resultado antes da apresentação do instrumento lúdico e após o uso do instrumento (p<0,0001), sendo que não houve diferença na ansiedade infantil entre os gêneros e as idades. Conclusão: O resultado da técnica de condicionamento utilizando o livro, antes do atendimento odontológico, foi altamente significativo na redução da ansiedade.

Objective: The aim of this study was to evaluate the emotional reactions before and after the application of a child audiovisual book that illustrates the trigger fear and anxiety points in the dental appointment. Moreover, the educational effect of this book as preconditioning to dental care was also verified. Methods: The study is a prospective pilot study conducted at the University of Western Santa Catarina with a convenience sample of 20 children aged 4-6 years old, with and without previous dental experience. All these children received the book and they were assessed before and after the presentation by responsible attendants. The projective test FIS (Facial Image Scale) was applied in 2 stages on the same day of assistance. Both tests were applied at the reception waiting room: before the child came into contact with the book in the dental clinic room and after the child came into contact with the playful instrument. Anamnesis and clinical examination were performed in the dental office by the dentist to start or continue the treatment. Results: The children were able to answer the projective test with self -analysis. The idealized audiovisual book was successfully constructed and used in the research. The comparison between FIS 1 and FIS 2 made with paired t-test showed significant improvements by comparing the results before the presentation of the playful instrument and after the use of it (p <0.0001), with no differences in childhood anxiety between genders and ages. Conclusion: The result of the conditioning technique using the book before the dental treatment was highly significant in reducing anxiety.

OBJETIVO: A proposta da pesquisa foi acompanhar a area radiolúcida (pixels) na região de furca e a resposta clínica de molares decíduos tratados endodonticamente com diferentes tecnicas simplificadas. MÉTODOS: Os tratamentos foram executados sem instrumentação dos condutos e com isolamento relativo, utilizando-se dois medicamentos: G1:Pasta Guedes-Pinto (PG) e G2: Pasta CTZ (CTZ) no preenchimento da câmara pulpar . As áreas radiolúcidas na região de furca dos molares decíduos obtidas das radiografias antes, após 6 meses e 12 meses do tratamento endodôntico foram analisadas no programa Image Tool 3.0 por 2 examinadores cegos. Para analisar a calibração entre os examinadores foi utilizado o teste Kappa e para comparação da imagem radiográfica inicial, após 6 e 12 meses de cada grupo foi utilizado a Análise de Variância e o teste complementar de Tukey. O teste T Student foi usado para comparação entre os grupos. RESULTADOS: A redução da área radiolúcida inicial após 6 (p<0,01) e 12 meses (p<0,01) foi observada somente com o uso da pasta CTZ. O emprego da pasta Guedes não resultou em diminuição da área radiolúcida após 12 meses de acompanhamento (p=0,09). CONCLUSÃO: A resposta clínica foi semelhante em ambos os grupos, porém apenas os dentes tratados com a pasta CTZ apresentaram redução da área radiolúcida na região da furca após 6 e 12 meses de acompanhamento.

OBJECTIVE: The purpose of this research was to follow the radiolucent area (pixels) in the furcation area and the behavior of the endodontically treated deciduous molars with different simplified echniques. METHODS: The treatments were performed without the duct instrumentation using relative isolation and two drugs were applied, as follows: G1: Guedes-Pinto paste (GP) and G2: CTZ paste (CTZ) for the pulp chamber filling. The radiolucent areas in the furcation region of deciduous molars were obtained from previous x-rays, after 6 and 12 months of the endodontic treatment and was analysed by l Image Tool 3.0 by two blinded examiners. In order to analyse the calibration between the examiners, Kappa test was used and for comparison of the initial radiographic image, analysis of variance was used after 6 and 12 months of each group and Tukey spost-hoc test. T-Student test was used for comparison between groups. RESULTS: There was a reduction of radiolucent area after 6 (p<0.01) and 12 months (p<0.01) in the teeth treated with CTZ paste. In the teeth treated with PG there was not reduction of radiolucent area after 12 months. (p= 0,09). CONCLUSION: Although the clinical signs were similar in both groups after 12 months of follow up, only teeth treated with CTZ showed reduction of radiolucent area in the furca area after 6 and 12 months.

Primary teeth are interesting models that can be used to study physiological and pathological processes involving cells and extracellular matrices in hard and soft tissues. This study investigated the expression and distribution of biglycan and decorin-the non-collagenous components of the extracellular matrix-in primary teeth tissue, during physiological root resorption. Thirty healthy human primary teeth were grouped together according to root length: Group I - two-thirds root length, Group II - one-third root length, and Group III - teeth with no root. The streptavidin-biotin-peroxidase immunohistochemical method was used with antibodies against the previously named antigens. The proteoglycans studied were found in the pulp and dentin extracellular matrix in all groups without any differences in the proteins, among the groups. Biglycan was observed mainly in predentin and in pulp connective tissue in the resorption area. In addition, decorin was observed mainly in pulp connective tissue, but near the resorption area. Biglycan and decorin were distributed differentially in the dental tissues. The present immunohistocytochemical data, combined with previously reported data, suggest that these proteoglycans could be involved in regulating the physiological resorption process in healthy primary teeth.