Journal
JOURNAL OF CLINICAL PERIODONTOLOGY
Volume 45, Issue 12, Pages 1475-1484Publisher
WILEY
DOI: 10.1111/jcpe.13018
Keywords
alveolar ridge preservation; connective tissue graft; single implant
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Aim To evaluate the 5-year aesthetic outcome of single implants following alveolar ridge preservation (ARP) and connective tissue graft (CTG) at the buccal aspect. Materials and Methods Thirty-seven periodontally healthy non-smoking patients received flapless tooth extraction, ARP with a deproteinized bovine bone mineral with 10% collagen (DBBMC), implant placement (4-6 months later), a provisional screw-retained crown and CTG at the buccal mucosa (3 months later) and a permanent crown (3 months later). The aesthetic results were the primary outcome and the clinical results the secondary outcome of the study. Both outcomes were compared to those after 1 year. Mucosal thickness (MT) was registered using a non-invasive ultrasonic device. Results Thirty-two patients attended the 5-year re-assessment, and all implants survived. Mean marginal bone loss was 0.53 mm at 1 year and 0.47 mm at 5 years (p = 0.439). Mesial Papilla showed a further re-growth between 1 and 5 years (p = 0.043). Mid-facial recession amounted to 0.05 mm and 0.12 mm at 1 and 5 years, respectively (p = 0.161). The Pink Esthetic Score was 11.00 and 11.17 at 1 and 5 years, respectively (p = 0.596). MT gain amounted to 0.97 mm (relative stability: 90.5%) and 0.91 mm (relative stability: 85%) at 1 and 5 years, respectively (p = 0.249). Conclusion ARP and CTG resulted in favourable clinical and aesthetic outcomes. CTG substantially increased MT with acceptable stability over a 5-year period.
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