Method: The periapical status was determinated through periapical radiographs and the teeth were classified according to their score in the periapical index (PAI). Also were evaluated factors that are associated with periradicular status in endodontically treated teeth: diagnostic pulp, periapical diagnosis, filling length, filling quality, restoration coronal restorative material interadicular core and post-treatment periapical lesion.
Result: The total teeth studied, 88, 5% of the cases were classified as healthy-teeth. We also found that 96.7% of the endodontic treatments were in good condition. An appropriate 3mm seal from the apex and presence of coronal restoration were also associated with periapical status with OR values of 0.03 (0.003 to 0.25) and 0.11 (0.02 to 0.57) respectively. Through bivariate analysis was possible to determine that the presence of injury at the time of dental evaluation is associated with the periapical status with an OR of 9.54 (2.69 to 33.82).
Conclusion: The data obtained from this research show a high percentage of healing after endodontic treatments of radiographic control, the quality of the root filling and the coronal restoration presence were the most decisive factors in the periradicular status.