Open healing of contained and noncontained extraction sockets covered with a ribose cross-linked collagen membrane: a pilot study
- Author:
Anton FRIEDMANN
1
;
Viktorija MESKELEVICIENE
;
Mehmet Selim YILDIZ
;
Werner GÖTZ
;
Jung-Chul PARK
;
Kai R. FISCHER
Author Information
- Publication Type:Research Article
- From:Journal of Periodontal & Implant Science 2020;50(6):406-417
- CountryRepublic of Korea
- Language:English
-
Abstract:
Purpose:This study investigated whether the placement of ribose cross-linked collagen (RCLC) membranes without primary soft tissue closure predictably resulted in sufficient alveolar ridge preservation in contained and non-contained extraction sockets.
Methods:Membranes were positioned across extraction sockets, undermining full-thickness flaps, and the gingival margins were fixed by double-interrupted sutures without crossed horizontal mattress sutures for 1 week. In non-contained sockets, a bone substitute was used to support the membrane within the bony envelope. Radiographs and clinical images obtained 4 months later were analyzed by ImageJ software using non-parametric tests.
Results:In 18 patients, 20 extraction sockets healed uneventfully and all sites received standard-diameter implants (4.1, 4.8, or 5.0 mm) without additional bone augmentation.Soft tissues and the muco-gingival border were well maintained. A retrospective analysis of X-rays and clinical photographs showed non-significant shrinkage in the vertical and horizontal dimensions (P=0.575 and P=0.444, respectively). The new bone contained vital bone cells embedded in mineralized tissues.
Conclusions:Within the limitations of this pilot study, open healing of RCLC membranes may result in sufficient bone volume for implant placement without additional bone augmentation in contained and non-contained extraction sockets.
