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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 
Citation
 Journal of Periodontal & Implant Science, Vol.41(5) : 211-217, 2011 
Journal Title
 Journal of Periodontal & Implant Science 
ISSN
 2503-3352 
Issue Date
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
https://ir.ymlib.yonsei.ac.kr/handle/22282913/94608
DOI
10.5051/jpis.2011.41.5.211
Appears in Collections:
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Periodontology (치주과학교실)
Yonsei Authors
김창성(Kim, Chang Sung) ; 박정철(Park, Jung Chul) ; 윤정호(Yun, Jeong Ho) ; 정의원(Jung, Ui Won) ; 조규성(Cho, Kyoo Sung) ; 최성호(Choi, Seong Ho)
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