Technical Quality of Root Fillings Performed by Undergraduate Dental Students in Single-Canal Teeth: A 10-Year Retrospective Study.

Objective: This study assessed the radiographic technical quality of root fillings in single-canal teeth performed over a decade (June 2013 to June 2023) by undergraduate dental students of the Federal University of Campina Grande.

Methods: All teeth underwent chemomechanical preparation using Gates-Glidden drills and hand instrumentation with stainless steel files up to 1 mm short of the root apex. Apical expansion was performed with up to two or three instruments above the initial anatomical apical diameter.