Efficacy and safety of internal bleaching agents for discolored endodontically treated teeth: A systematic review and network meta-analysis of in vitro and ex vivo studies
Discoloration of endodontically treated teeth is a common esthetic problem, and internal bleaching is its most conservative treatment. Laboratory evidence comparing agents and activation methods is fragmented. To synthesize in vitro and ex vivo evidence and to compare, rank, and appraise the immediat...