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KMID : 0362720120500120743
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Journal of the Korean Dental Association
2012 Volume.50 No. 12 p.743 ~ p.754
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A multicenter clinical study of installed US II Plus/GS II Osstem implants after bone graft
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Chung Kwang
Oh Chul-Jung
Ha Ji-Won
Kook Min-Suk
Park Hong-Ju
Oh Hee-Kyun
Kim Su-Gwan
Kim Young-Kyun
Kim Woo-Cheol
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Abstract
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Purpose : The purpose of this study was to evaluate the US II plus/GS II Osstem짋 implants through the study for the clinical success rate during the installation of the Osstem® implants after bone graft.
Materials and Methods : This study was researched in the 4 medical institutions: Chonnam National University, Chosun University, Bundang Seoul National University Hospital, and FM dental clinic from May, 2002 to September, 2009. Based on the total number of 60 patients whose treatment was the installation of the US II plus/GS II Osstem® implants after bone graft, we evaluated success rate of implants. We analysis the distribution of patient? age and gender, edentulous area, bone type, fixture length and diameter, installation and loading time, donor site, bone graft material and method, antagonistic teeth, and survival and success rate. From these analyses we got the following results.
Results : 1. In this study, the total number of patients who have been installed with US II plus implant was 27, and total of 52 implants were installed. The average age was 38.9, with 16 male, and 11 female patients.
2. The total number of patients who have been installed with GS II implant was 33, and total of 54 implants were installed. The average age was 49.7, with 24 male, and 9 female patients.
3. As for bone graft method, either autogenous bone or a mix of autogenous and heterogenous bone was used(88.4%) for US II plus. Chin, iliac, and Maxillary tuberosity were the donor sites for autogenous bone graft, and onlay method of bone graft was performed.
4. Allogenic bone or a mix of autogenous and heterogenous bone was used(77.8%) for GS II. Chin, ramus, and tibia were the donor sites for autogenous bone graft, and GBR method of bone graft was performed.
5. The duration from the installation of implants to setting of final prosthesis was average of 16 months and 10 months for US II plus and GS II respectively. Also, the final follow up period was average of 31 months and 28 months respectively. During this period, one GS II implant was removed from 1 patient due to failure of early osteointegration.
6. The survival rates were 100% and 98.1%, and success rates were 94.2% and 94.4% for US II plus and GS II implant respectively.
Conclusion : On the evaluation of our clinical study, both US II plus and GS II Osstem® implants showed the excellent clinical results after bone graft.
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KEYWORD
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US II plus, GS II, Osstem, implant, Bone graft, Multicenter clinical study
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