CORONARY OPENING THROUGH THE BASTIEN TECHNIQUE IN THE LEFT MANDIBULAR FIRST PREMOLAR – CASE REPORT

Abstract

This study aims to present a clinical case in which the opening was performed using the Bastien technique in the left mandibular first premolar (34). On intraoral clinical examination, extensive caries on the buccal surface was found. The radiographic findings showed the presence of an area of a radiolucent area in the cervical third and an increase in the space of the periodontal ligament. The instruments recommended for root canal preparation were: Prodesign Logic 30.05. The filling was performed using the single-cone technique associated with BIO-C Sealer cement (Angelus) and the buccal wall was restored with Opus bulk fill flow (FGM) composite resin. It is concluded that the treatment with modified access by the Bastien technique, performed in the lower premolar with caries on the buccal surface, preserves healthy coronary dentin, determining clinical and radiographic success, which may represent an advantage in relation to dental longevity.