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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-19417

Jung, R E; Windisch, S I; Eggenschwiler, A M; Thoma, D S; Weber, F E; Hämmerle, C H F (2009). A randomized-controlled clinical trial evaluating clinical and radiological outcomes after 3 and 5 years of dental implants placed in bone regenerated by means of GBR techniques with or without the addition of BMP-2. Clinical Oral Implants Research, 20(7):660-666.

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Abstract

OBJECTIVE: The aim of this randomized-controlled clinical trial was to evaluate the long-term outcome of implants placed in bone augmented with a xenogenic bone substitute material and a collagen membrane with or without the addition of recombinant human bone morphogenetic protein-2 (rhBMP-2). MATERIAL AND METHODS: Eleven patients received a total of 34 implants placed into sites exhibiting lateral bone defects. In a split mouth design, the defects were randomly treated with the graft material and the collagen membrane either with (test) or without (control) rhBMP-2. The patients were examined 3 and 5 years after insertion of the prosthetic restoration. Student's paired t-test was performed to detect differences between the two groups. RESULTS: The survival rate at 3 and 5 years was 100% for both groups. The peri-implant soft tissues were stable and healthy without any difference between the two groups. The prosthetic reevaluation demonstrated four loose prosthetic screws during the first 3 years and seven ceramic chippings after 3 and 5 years. The mean distance between the first bone to implant contact to implant abutment junction at 3 years was 1.37 mm (test), 1.22 mm (control), and 1.38 mm (test), and 1.23 mm (control) at 5 years. The difference of <0.2 mm between test and control implants was not statistically significant. The mean change of the marginal bone level between baseline and 5 years ranged from -0.07 mm (mesial, test), -0.11 mm (distal, test), -0.03 mm (mesial, control), to +0.13 mm (distal, control). No statistically significant differences were observed between test and control sites. CONCLUSION: Implants placed in bone augmented with and without rhBMP-2 revealed excellent clinical and radiological outcomes after 3 and 5 years.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Center for Dental Medicine > Clinic for Cranio-Maxillofacial Surgery
04 Faculty of Medicine > Center for Dental Medicine > Clinic for Fixed and Removable Prosthodontics
04 Faculty of Medicine > University Hospital Zurich > Division of Surgical Research
DDC:610 Medicine & health
Language:English
Date:July 2009
Deposited On:15 Jul 2009 15:55
Last Modified:27 Nov 2013 21:36
Publisher:Wiley-Blackwell
ISSN:0905-7161
Publisher DOI:10.1111/j.1600-0501.2008.01648.x
PubMed ID:19489935
Citations:Web of Science®. Times Cited: 26
Google Scholar™
Scopus®. Citation Count: 24

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