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Soft tissue expansion with self‐filling osmotic tissue expanders before vertical ridge augmentation: a proof of principle study
Author(s) -
Kaner Doğan,
Friedmann Anton
Publication year - 2011
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.2010.01630.x
Subject(s) - medicine , soft tissue , osseointegration , implant , bone grafting , perforation , bone tissue , surgery , bone remodeling , dentistry , cone beam computed tomography , biomedical engineering , materials science , computed tomography , punching , metallurgy
Kaner D, Friedmann A. Soft tissue expansion with self‐filling osmotic tissue expanders before vertical ridge augmentation: a proof of principle study. J Clin Periodontol 2011; 38: 95–101. doi: 10.1111/j.1600‐051X.2010.01624.x . Abstract Introduction: Post‐surgical graft exposition and loss of grafted bone are a common complication of vertical bone augmentation. Soft tissue expansion (STE) by implantation of osmotic self‐filling tissue expanders before reconstructive surgery is an effective method for generation of soft tissue. The aim of this study was to investigate the feasibility of STE before bone augmentation with regard to clinical and histological outcomes and complications. Methods: Tissue expanders were implanted in patients requiring vertical bone augmentation. Onlay grafting was carried out after 2 months of STE. Implants were placed 4–6 months after augmentation. Vertical bone gain was analysed with cone‐beam computed tomography (CBCT). Bone biopsies were investigated with micro‐computed tomography (micro‐CT). Results: Twenty‐four sites in 12 patients were treated with STE. Complications of STE were perforation (two sites) and infection (two sites). At augmentation after STE, primary wound closure was easily achieved and the incidence of graft expositions was low (4%). At implant placement, high vertical bone gain of 7.5 ± 2.4 mm was found. Micro‐CTs of bone revealed a good ratio of bone volume/tissue volume (mean BV/TV=0.1614 ± 0.0582). All implants were osseointegrated. Conclusions: The combination of STE and subsequent vertical augmentation provided high gain of well‐structured bone for further successful implant therapy and was accompanied by minimal complications.