Additional file 1: Tables S1-S6. Table S1. of Apical periodontitis in southern Estonian population: prevalence and associations with quality of root canal fillings and coronal restorations

Prevalence of apical periodontitis and root canal treatment according to previous studies. Table S2. Quality of treatment in case of apical periodontitis according to previous studies. Table S3. Distribution of study subjects by age and prevalence of pAP and sAP. Table S4. Distribution of teeth in particular tooth groups. Table S5. Distribution of teeth with AP and RCT according to tooth FDI number. Table S6. Evaluation criteria for radiographic analysis. (DOC 331 kb)