Comparative Study on Osseointegration of Implants After Flap and Flapless Surgery in the Mandible of Dogs.

PURPOSE: The objective of this study was to compare the implant stability and osseointegration of implants using a flap or flapless technique.

MATERIAL AND METHODS: Mandibular premolars and molars were extracted from both sides in 6 dogs. After 8 weeks, 4 fixtures were implanted using either a flap or flapless technique. Implant stability quotient was measured on insertion and at 2, 4, and 8 weeks later. The animals were killed while the tissues were histologically analyzed.

RESULTS: Implant stability increased for 8 weeks, and no statistically significant differences were observed between the surgical protocols. Bone-implant contact showed 60.27% ± 30.99% for flapless surgery and 59.73% ± 17.12% for flap surgery. And the results of new bone formation area from total area showed 56.07% ± 27.78% for flapless surgery and 57.00% ± 14.66% for flap surgery. There were no statistically significant differences.

CONCLUSION: This study showed no significant difference in implant stability as well as osseointegration regardless of flap or flapless technique.