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Long-term retrospective study of narrow implants for fixed dental prostheses

Title
Long-term retrospective study of narrow implants for fixed dental prostheses
Authors
Jung-Seok Lee;Hyun-Min Kim;Ui-Won Jung;Jung-Kiu Chai;Seong-Ho Choi;Chang-Sung Kim
Issue Date
2013
Journal Title
Clinical Oral Implants Research
ISSN
0905-7161
Citation
Clinical Oral Implants Research, Vol.24(8) : 847~852, 2013
Abstract
OBJECTIVE: The objectives of this study were to analyze retrospectively the long-term survival and success rates of Narrow implants (NIs) placed with various implant systems, and the association with biological and technical complications. MATERIAL AND METHODS: In total, 338 patients (men = 45.6%, women = 54.4%) who received 541 NIs (≤3.5 mm in diameter) for fixed prostheses were enrolled in this retrospective study. The mean marginal bone level (MMBL) change was calculated. Life table analysis with the cumulative survival rate and success rate was calculated, and biological and technical complications were evaluated. RESULTS: The annual MMBL change was 0.07 ± 0.20 mm. The 12-year cumulative survival (success) rates of NIs were 98.1% (91.8%) and 98.5% (93.8%) for the implant- and subject-based analysis, respectively. During the observation period up to 12 years (mean 4.9 years), six implants were lost in the maxilla, whereas three implants were lost in the mandible. Technical complications were more frequent than biological complications. Infection was the most common underlying cause of biological complications and the most frequent technical complication was decementation. CONCLUSION: In conclusion, the findings of this study suggest that NIs could be used safely for narrow alveolar ridges or narrow mesiodistal spaces on the basis of their high survival rate.
URI
http://onlinelibrary.wiley.com/doi/10.1111/j.1600-0501.2012.02472.x/abstract

http://ir.ymlib.yonsei.ac.kr/handle/22282913/87362
DOI
10.1111/j.1600-0501.2012.02472.x
Appears in Collections:
1. 연구논문 > 2. College of Dentistry > Dept. of Periodontology
Yonsei Authors
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