Abstract: Objective: To access the clinical outcomes of modified minimally invasive (MMI) and traditional minimally invasive (TMI) surgical technique in oral implantation. Methods: Subjects eligible for this study were randomly assigned into two groups: modified minimally invasive group and traditional minimally invasive group. The evaluation items were the following: implant installation position, soft tissue swelling, the operative time, post-surgical pain, marginal bone loss (MBL), and implant survival rate. Results: Sixty subjects were included in the study. None of the implants demonstrated dehiscence or loss during the follow-up. Subjects in MMI group showed significantly lower post-surgical pain at 24 hours and significantly less wound swelling index scores at 3 days follow-up. At every appointment in the study, no statistical significant difference of MBL was found between two groups. Conclusion: Compared with TMI group, single implant placed applying the MMI technique in selected subjects showed advantages in improving patient comfort and decreasing post-implant placement soft tissue reaction. Meanwhile, implants with MMI approach have the same level of MBL and high success rates as TMI procedure at 6-months follow-up.

Key words: Implant, Modified flapless surgery, Minimally invasive, Clinical application