Avaliação radiográfica de retentores intrarradiculares pré-fabricados no estado de Sergipe, Brasil

Abstract

Introduction: After endodontics, the use of posts is required in cases of extensive coronary destruction, since it allows the remaining root maintenance and serves as anchorage for the reception of the prosthetic crown. The use of prefabricated posts has increased due to its practicality. However, the negligence of the protocol and the basic principles of clothing can cause rehabilitation failure. Objective: To evaluate periapical radiographs of prefabricated posts in single-rooted teeth and their coherence with the prosthetic principles, in Sergipe state, Brazil. Material and methods: Digital periapical radiographs of single-rooted teeth that present endodontical treatment and prefabricated posts were selected from database of the image center (Centro de Imagem- Aracaju/SE). The images were analyzed using the ImageJ software in accordance with the fundamental prosthetic principles: diameter and length of the post, gap between post and the remaining root canal filling, absence of periapical lesion, ratio between post and bone crest, amount of remaining root canal filling and contiguity of post to the root canal. The data were qualitatively analyzed into ideal and not ideal, and submitted to the chi-square test (α=0.05). Results: Only 0.4% of the periapical radiographs of prefabricated prefabricated posts in single-rooted teeth were satisfactorily. The dimensions with satisfactory values were only the length of the pin and the ratio pin/crest bone. Conclusion: Most intraradical retainers was not considered as ideal. They disobey almost all prosthetic principles.