Avaliação radiográfica de 1000 retentores intrarradiculares metálicos fundidos no estado de Sergipe

Abstract

Introdution: Teeth with extensive coronary destruction and endodontically treated need post and core to enable prosthetic restoration. Despite the increasing use of prefabricated post system, cast metal posts are still widely used. The quality of those are important for longevity of restorative treatment and if the fundamental principles are not followed, they can failure. Objective: Radiographically evaluate the prosthetic principles of 1000 cast- metal posts in unirradicular teeth and the coherence of them with the principles for their confection. Material and method: Digital periapical radiographs of 1000 unirradicular teeth with endodontic treatment and cast-metal posts were selected of a radiological clinic’s collection (Centro de Imagem, Aracaju / SE, Brazil). The images were analyzed by a measurement software (ImageJ, USA) in agree with fundamental prosthetic principles. The values were tabulated and analyzed qualitatively in ideals and not ideals. Result: 13.5% of the pin were adequate length; 51.9% were absence of voids between endodontics and pin; 80.1% have the ideal pin diameter; 19.4% have appropriate relationship between the pin and the bone crest; 92.9% pins were contiguous to conduit; 8.3% were not associated with short pins and have remaining filling material adequate; 85.8% have absence of periapical lesions. Only 6.7% of the cast metal posts analyzed were satisfactory. Conclusion: Many prosthetic criteria are neglected during the manufacture of cast metal posts, resulting in inadequate work that may compromise the longevity of restorative treatment.