1. The global burden of oral diseases and risks to oral health;Petersen;Bull World Health Organ,2005
2. Periodontitis;Flemmig;Ann Periodontol,1999
3. A systematic review on the clinical efficacy of subgingival debridement in the treatment of chronic periodontitis;Weijden;J Clin Periodontol,2002
4. Effects of nonsurgical periodontal therapy on hard and soft tissues;Adriaens;Periodontol,2000
5. Biology of wound healing;Aukhil;Periodontol 2000,2000