A Two-Year Evaluation of a Sloped Marginal Contour Implant System Placed in Healed Sites

Purpose: The purpose of this clinical trial was to evaluate the survival rate, bone remodeling, and soft tissue health around sloped marginal contour implants when placed in healed sites posteriorly in the mouth. Materials and Methods: Implants were placed in healed sites at premolar and molar regions. After a 3-month osseointegration period, definitive prostheses were connected. Clinical and radiographic examinations were performed at implant placement and then 1, 3, 6, 12, and 24 months after implant placement. An assessment of implant stability, peri-implant mucosa, level of attached gingivae, occlusion, proximal contact, and marginal bone levels was performed at each respective visit. Results: Fourteen patients were treated and restored with 18 single crowns. The cumulative survival rate was 100% after 2 years. The mean marginal bone remodeling was 0.04 ± 0.26 mm (n = 18). The attached gingival change was +0.33 ± 0.35 mm. Conclusion: The 24-month results indicate that the sloped marginal contour implant performed well in posterior healed sites with a 100% survival rate and good marginal bone maintenance. Keywords: dental implant, marginal bone, sloped marginal contour