Totally American Society of Anesthesiologists (ASA) I-II, 18-60 ages, 583 patients who had had oral and maxillofacial operations for 30 minutes and over with TIVA and IA methods between 1st Jan, 2016 and 1st Jan, 2017. The ones who had insufficient data in their files and who were conscious / superficial sedation patients were excluded from the study. The patients were allocated to two groups as TIVA and IA. The total intravenous anesthesia group was named "Group TIVA" , and the volatile anesthesia group was named "Group IA".