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Effect of microthread on the maintenance of marginal bone level: a 3-year prospective study

 Dong-Won Lee  ;  Young-Shill Choi  ;  Ik-Sang Moon  ;  Chang-Sung Kim  ;  Kwang-Ho Park 
 Clinical Oral Implants Research, Vol.18(4) : 465-470, 2007 
Journal Title
 Clinical Oral Implants Research 
Issue Date
OBJECTIVES: The purpose of the present study was to evaluate the long-term effect of the microthread on the maintenance of marginal bone level. MATERIAL AND METHODS: Seventeen patients were selected and two types of Astra Tech implants were installed, with the Microthread on the coronal portion of the fixture [Astra Tech Single Tooth Implant (ST)] or without the Microthread [Astra Tech TiOblast Implant (TB)]. ST and TB were installed adjacent to each other within the same partially edentulous sites and marginal bone loss was evaluated by radiographic image. The marginal bone-level alteration of the each fixture after prosthesis insertion was analyzed. RESULTS: The marginal bone loss of ST and TB differed significantly during the observation period (P<0.01). Marginal bone levels of both ST and TB were stabilized after 1 year of lading. CONCLUSIONS: The Microthread might have an effect in maintaining the marginal bone loss against loading.
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2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chang Sung(김창성) ORCID logo https://orcid.org/0000-0003-3902-1071
Moon, Ik Sang(문익상)
Park, Kwang Ho(박광호) ORCID logo https://orcid.org/0000-0003-1942-2986
Lee, Dong Won(이동원) ORCID logo https://orcid.org/0000-0003-1852-7989
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