Marcussen KB, Laulund AS, Jørgensen HL, Pinholt EM. A Systematic Review on Effect of Single-Dose Preoperative Antibiotics at Surgical Osteotomy Extraction of Lower Third Molars. Journal of Oral and Maxillofacial Surgery. 2016 apr.;74(4):693-703. doi: 10.1016/j.joms.2015.11.017