ABSTRACT
Objective To investigate the effect of collagen line in the tension－free suture of the incision of oral implant and the effect on the healing time of the wound. Methods 100 patients were selected from January 2016 to January 2017 for repair of dental implant in Zhong Hua Dental clinic of Jinghong city, and they were randomly divided into control group and study group,with 50 cases in each group. The control group was treated with non absorbable sutures of silk suture wounds, while the study group using collagen suture wounds, then we compared two groups of patients with wound healing grade, suture line absorption, wound healing time and formation rate. Results The research group of grade A healing rate was 96%, significantly higher than 80% in the control group (P＜0.05), and the adverse reactions of the study group was 6%, lower than 20% in the control group (P＜0.05);the complete absorption rate and smooth incision rates in the study group for suture in different times were 84%, 96% 100%, and 86%, which were significantly higher than the control group's 62%, 78%, 80% and 68% (P＜ 0.05) . The wound's healing time and postoperative VAS score of 3 d, 5 d and 7 d were significantly lower than the control group (P＜0.05) . Conclusion Collagen line in oral implant surgery incision tension－free suture of wound healing and postoperative recovery is significantly better than that of silk and non absorbable sutures, and collagen can be degradated orally,which effectively improves the wound healing of patients with grades and wound flat rate, and effectively accelerates wound healing, with the value of application.