Eficácia de duas técnicas de obturação em cavidades experimentais de reabsorção radicular interna
Effi cacy of two obturation techniques in experimental internal root resorption cavities
De Melo, Tiago André F.; Kunert, Gustavo Golgo; Da Silva, Mireli Belizario; Cabeda, Mariella Falci
Resumo
Introdução: O preenchimento com material endodôntico obturador em dentes com reabsorção radicular interna é extremamente difícil. Objetivo: Avaliar a eficácia de duas técnicas de obturação no preenchimento de cavidades experimentais de reabsorção interna. Material e método: Vinte incisivos centrais superiores artificiais, com a presença de uma cavidade simulada padronizada de reabsorção no terço médio do canal radicular, foram utilizados. Após o preparo endodôntico dos dentes, os mesmos foram randomicamente divididos em dois grupos (n=10), de acordo com a técnica de obturação empregada: híbrida de Tagger ou com auxílio do sistema ultrassônico. A verificação da obturação endodôntica, junto à cavidade de reabsorção interna, foi feita por meio da tomada radiográfica com dois tipos de incidência: mesiodistal e vestibulolingual. Para a análise da área de obturação, foi empregado o programa Image Tool®. Os dados obtidos da obturação foram submetidos à análise estatística por meio do Teste t de Student, com nível de significância de 5%. Resultado: Não houve diferença estatística entre as técnicas de obturação testadas. Apenas pôde-se observar diferença significativa nos dentes obturados com auxílio do ultrassom, quando se comparou a incidência radiográfica realizada no sentido mesiodistal com a vestibulolingual. Conclusão: As duas técnicas de obturação testadas foram similares no preenchimento da cavidade de reabsorção interna.
Palavras-chave
Abstract
Introduction: The filling with obturation endodontic material in teeth with internal root resorption is extremely difficult. Objective: To evaluate the efficacy of two obturation techniques in the filling of experimental internal resorption cavities. Material and method: Twenty maxillary central incisors artificial, with the presence of a standardized simulated resorption cavity in the middle third of the root canal were used. After endodontic treatment of teeth, they were randomly divided into two groups (n=10), according to the obturation technique used: hybrid Tagger or with the aid of the ultrasonic system. Verification of endodontic obturation, with the cavity internal resorption, was taken by radiography with two types of incidence: mesiodistal and buccolingual. For the analysis of area closures, we used the Image Tool® program. The data of the filling were subjected to statistical analysis using Student’s t test, with significance level of 5%. Result: There was no statistical difference between the tested obturation techniques. As one can observe a significant difference in teeth obturated with the aid of ultrasound, when compared to the radiograph performed in mesiodistal with buccolingual. Conclusion: The two obturation techniques tested were similar to fill the cavity of internal resorption.
Keywords
References
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