Clinical comparison of a xenogeneic collagen matrix versus subepithelial autogenous connective tissue graft for augmentation of soft tissue around implants. Issue 7 (July 2021)

• Record Type: Journal Article
• Authors: De Angelis, P.; De Angelis, S.; Passarelli, P.C.; Liguori, M.G.; Pompa, G.; Papi, P.; Manicone, P.F.; D'Addona, A.
• Is Part Of: International journal of oral & maxillofacial surgery. Volume 50:Issue 7(2021)
• Page Start: 956
• Page End: 963
• Publication Date: 2021-07
• Subjects: dental implant -- connective tissue -- biocompatible materials -- oral surgical procedure -- periodontics; Mouth -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Dentistry -- Periodicals; Dentistry, Operative; Oral Surgical Procedures; Surgery, Oral; Dentistry; Maxilla -- Surgery; Mouth -- Surgery; Electronic journals; Periodicals; 617.52059
• DOI: 10.1016/j.ijom.2020.11.014
• Languages: English
• ISSNs: 0901-5027

Abstract

Abstract: Dental implant placement is a predictable therapy for replacing teeth. Nevertheless, mechanical, biological, and aesthetic complications frequently occur. The aim of this study was to compare the clinical outcomes of a xenogeneic collagen matrix (XCM) used at the time of implant placement as an alternative to a subepithelial connective tissue graft (SCTG), for soft tissue augmentation. This was a prospective clinical trial with 12 months of follow-up. In the control group, soft tissue augmentation at the time of implant placement was performed with a SCTG, while in the test group, a XCM was employed. At 12 months postoperative, all xenografts showed no postoperative complications. In both groups, a significantly greater thickness was observed on the buccal and occlusal sides from preoperative to 3 months postoperative ( P < 0.05). No statistically significant difference in pink aesthetic score ( P = 0.379, 6 months postoperative) or marginal bone loss ( P = 0.449 at 3 months postoperative, P = 0.778 at 6 months postoperative) was observed between the groups. Statistically significant differences in pain perceived by the patients ( P < 0.0001) and the time to complete the surgical procedure ( P = 0.0008) were detected. At 12 months after surgery, XCM provided similar clinical results in terms of soft tissue augmentation on the buccal and occlusal sides as compared with the SCTG.