Evaluation of blood clot and collagen sponge in regeneration of nonvital immature permanent anterior teeth

Abstract

Introduction Traumatic dental injuries (TDI) of permanent anterior teeth is a common dental problem among the children. Pulpal necrosis is the critical result of traumatic dental injury as it makes a challenge in endodontic and restorative procedures. Revascularization is one of most recent treatment of such teeth. Aim The purpose of this study was to evaluate and compare the regenerative potential of the blood clot and collagen sponge as scaffold in revascularization of nonvital immature permanent anterior teeth using biodentine for coronal bacterial tight seal. Materials and methods This study was conducted on 30 anterior teeth on healthy children aged from 7 to 9 years. The selected patients were divided into two groups according to scaffold used: group I (blood clot scaffold) and group II (combined blood clot and collagen scaffold). Clinical and radiographic outcomes were assessed at 3, 6, 9, 12, 15 and 18 months follow up. Results The results revealed that there was no statistically significant difference between the two groups regarding clinical and radiographic outcomes. Conclusion It was concluded that, the revascularization with blood clot and collagen sponge has no significant differences in clinical and radiographic evaluation criteria.