Abstract: PURPOSE: To design a method for fixation of oral tracheal intubation, to prevent anesthetic intubation fall-off during operations, then improving surgical safety and surgical efficiency. METHODS: Eighty patients undergoing intraoral surgery were chosen, who had rhinostenosis and required oral intubation. The patients were randomly divided into experimental and control groups. In the experimental group, anesthetic cannulas were placed at the corner of mouth, several teeth were fixed by 4-0 silk thread according to the surgical site, then knotted around the cannulas. In the control group, anesthetic cannulas were placed at the corner of mouth, the soft tissue of mouth were fixed by 4-0 silk thread, then knotted around the cannulas. SPSS 19.0 software package was used for statistical analysis. RESULTS: There were 18 patients with mild displacement, two patients with moderate displacement in the control group, while there were two patients with mild displacement in the experimental group, and the difference between the two groups was statistically significant(P<0.001）. There were 11 patients with mild oral commissure injury in the control group, while there was no oral commissure injury in the experimental group, and the difference between the two groups was statistically significant(P<0.001). There was no gingival injury in the control group, and there was only one patients with gingival injury in the experimental group, the difference between the two groups was not statistically significant(P=0.314). There was no change of tooth stability in the control group and the experimental group. CONCLUSIONS: The method for fixation of oral tracheal intubation can be used as a routine method during intraoral surgery.

Key words: Transoral anaesthetics, Intraoral surgery, Intubation fixation