Background
tooth extraction [Alveolar ridge preservation, trauma
PERIODONTAL DISEASE
Periodontal disease, endodontic treatment failure and trauma are common causes of tooth extraction [Alveolar ridge preservation is a reliable strategy for reducing the resorption of alveolar bone after tooth extraction [It was reported that Er:YAG laser might improve early new bone formation by regulating the expression of osteogenesis-related factors [Radical debridement is one of the fundamental steps recommended in bone regeneration at infected sites [Consequently, this study aimed to investigate the influence of Er:YAG laser debridement during ARP on the quality and quantity of alveolar bone changes at infected extraction sites.