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A short-term clinical study of marginal bone level change around microthreaded and platform-switched implants

Title
A short-term clinical study of marginal bone level change around microthreaded and platform-switched implants
Authors
Hee-Jung Yun;Jung-Chul Park;Kyoo-Sung Cho;Seong-Ho Choi;Chang-Sung Kim;Ui-Won Jung;Jeong-Ho Yun
Issue Date
2011
Journal Title
Journal of Periodontal & Implant Science
ISSN
2503-3352
Citation
Journal of Periodontal & Implant Science, Vol.41(5) : 211~217, 2011
Abstract
PURPOSE: The marginal bone levels around implants following restoration are used as a reference for evaluating implant success and survival. Two design concepts that can reduce crestal bone resorption are the microthread and platform-switching concepts. The aims of this study were to analyze the placement of microthreaded and platform-switched implants and their short-term survival rate, as well as the level of bone around the implants. METHODS: The subjects of this study were 27 patients (79 implants) undergoing treatment with microthreaded and platform-switched implants between October 2008 and July 2009 in the Dental Hospital of Yonsei University Department of Periodontology. The patients received follow-up care more than 6 months after the final setting of the prosthesis, at which time periapical radiographs were taken. The marginal bone level was measured from the reference point to the lowest observed point of contact between the marginal bone and the fixture. Comparisons were made between radiographs taken at the time of fixture installation and those taken at the follow-up visit. RESULTS: During the study period (average of 11.8 months after fixture installation and 7.4 months after the prosthesis delivery), the short-term survival rate of microthreaded and platform-switched implants was 100% and the marginal bone loss around implants was 0.16±0.08 mm, the latter of which is lower than the previously reported values. CONCLUSIONS: This short-term clinical study has demonstrated the successful survival rates of a microthread and platform-switched implant system, and that this system is associated with reduced marginal bone loss.
URI

http://ir.ymlib.yonsei.ac.kr/handle/22282913/94608
DOI
10.5051/jpis.2011.41.5.211
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Periodontology
Yonsei Authors
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