Abstract: Objective: To investigate the clinical effect of minimally invasive non-flap implantation and tradi-tional flap implantation on alveolar ridge parietal bone resorption in patients with loss of teeth with good bone mass. Methods: 120 edentulous patients who underwent dental implantation in our hospital from January 2016 to June 2017 were randomly divided into control group and observation group, 60 cases in each group. Patients in the control group were treated with traditional flap implantation, while patients in the observation group were treated with minimally invasive non-flap implantation. Results: The success rate of planting was 96.67% in the observation group, significantly higher than 85.00% in the control group (P<0.05). The incidence of adverse events in the observation group was 1.67%, significantly lower than 11.67% in the control group(P<0.05). The PES score and implant stability coefficient in the observa-tion group were significantly higher than those in the control group(P<0.05). The absorbance of alveolar ridge parietal bone in the observation group was significantly lower than that in the control group at 6 and 12 months after operation(P<0.05). Conclusion: Minimally invasive non-flap implantation has high suc-cess rate, good stability, low alveolar ridge parietal bone resorption, and can alleviate the complications and pain.

Key words: minimally invasive non flap implantation, traditional flap planting, alveolar ridge pari-etal bone