Association Between Residual Pericervical and Apical Dentine and Vertical Root Fracture in Endodontically Treated Molars: A Case‐Control Study

Successful pRCT with minimum canal preparation, particularly at the apical level, is essential to minimize the likelihood of VRF. In ETMs with an isolated periodontal probing depth ≥ 5 mm, assessing residual apical dentine, tooth type, reRCT history, and time since pRCT can effectively differentiate VRF from non-VRF teeth (AUC, 0.940; p < 0.001), offering valuable diagnostic guidance.