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  • Title: Comparison of submerged and nonsubmerged implants placed without flap reflection in the canine mandible.
    Author: Choi BH, Li J, Kim HS, Ko CY, Jeong SM, Xuan F.
    Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod; 2008 May; 105(5):561-5. PubMed ID: 18299237.
    Abstract:
    OBJECTIVE: The purpose of this study was to compare the bone healing around submerged and nonsubmerged implants installed in a canine mandible model using a flapless technique. STUDY DESIGN: Bilateral, edentulated, flat alveolar ridges were created in the mandibles of 6 mongrel dogs. After 3 months of healing, 2 implants were placed in 1 side by either miniflap submerged or flapless nonsubmerged procedures. After healing for an additional 8 weeks, microcomputerized tomography at the implantation site was performed. Osseointegration was calculated as the percent of the implant surface in contact with bone. Bone height was measured in the peri-implant bone. RESULTS: The mean osseointegration was greater (64.7%) in miniflap submerged sites than in the flapless nonsubmerged sites (56.8%; P < .05). The mean peri-implant bone height was greater (11.0 mm) in the miniflap submerged sites than in the flapless nonsubmerged sites (10.1 mm; P < .05). CONCLUSION: This study demonstrated that the submerged procedure was more effective than the nonsubmerged procedure in improving implant anchorage in the early phase after implant placement.
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