Arbildo-Vega, Heber, Sime, Marialejandra, Infantes, Edward, Cruzado, Fredy, AND Castillo, Tania. " Efficacy of chlorhexidine in the prevention of alveolar osteitis after permanent tooth extraction. Systematic review and meta-analysis." Journal of Oral Research [Online], Volume 8 Number 5 (31 October 2019)