Assessment of dehydrothermally cross-linked collagen membrane for guided bone regeneration around peri-implant dehiscence defects: a randomized single-blinded clinical trial.
10.5051/jpis.2015.45.6.229
- Author:
Jae Hong LEE
1
;
Jung Seok LEE
;
Won Sun BAEK
;
Hyun Chang LIM
;
Jae Kook CHA
;
Seong Ho CHOI
;
Ui Won JUNG
Author Information
1. Department of Periodontology, Research Institute for Periodontal Regeneration, Yonsei University College of Dentistry, Seoul, Korea. drjew@yuhs.ac
- Publication Type:Clinical Trial ; Controlled Clinical Trial ; Randomized Controlled Trial ; Original Article
- Keywords:
Augment bone graft;
Controlled clinical trial;
Cross-linking;
Membrane
- MeSH:
Bone Density;
Bone Regeneration*;
Collagen*;
Cone-Beam Computed Tomography;
Humans;
Membranes*;
Postoperative Period
- From:Journal of Periodontal & Implant Science
2015;45(6):229-237
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: The aim of this study was to determine the clinical feasibility of using dehydrothermally cross-linked collagen membrane (DCM) for bone regeneration around peri-implant dehiscence defects, and compare it with non-cross-linked native collagen membrane (NCM). METHODS: Dehiscence defects were investigated in twenty-eight patients. Defect width and height were measured by periodontal probe immediately following implant placement (baseline) and 16 weeks afterward. Membrane manipulation and maintenance were clinically assessed by means of the visual analogue scale score at baseline. Changes in horizontal thickness at 1 mm, 2 mm, and 3 mm below the top of the implant platform and the average bone density were assessed by cone-beam computed tomography at 16 weeks. Degradation of membrane was histologically observed in the soft tissue around the implant prior to re-entry surgery. RESULTS: Five defect sites (two sites in the NCM group and three sites in the DCM group) showed soft-tissue dehiscence defects and membrane exposure during the early healing period, but there were no symptoms or signs of severe complications during the experimental postoperative period. Significant clinical and radiological improvements were found in all parameters with both types of collagen membrane. Partially resorbed membrane leaflets were only observed histologically in the DCM group. CONCLUSIONS: These findings suggest that, compared with NCM, DCM has a similar clinical expediency and possesses more stable maintenance properties. Therefore, it could be used effectively in guided bone regeneration around dehiscence-type defects.
