The critical time-lapse between various restoration placements and subsequent endodontic intervention.

Introduction: The purpose of this study was 2-fold: (1) to investigate the critical time-lapse of endodontic intervention subsequent to various restorations and tooth surfaces and (2) to assess and compare the risk factors associated with the restorations, tooth surfaces, and endodontic treatment.

Methods: A comprehensive computerized analysis of all dental school patients at the Case Western Reserve University School of Dental Medicine who received restorations from 2008-2013 was obtained. Inclusion and exclusion criteria were applied.