지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.12
- 수록면
- 222 - 233 (12page)
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초록· 키워드
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Purpose: Restoration of the mandibular second molar with single implants has many limitations. This includes poor bone quality, reduced alveolar bone, large occlusal force, and difficulty in surgical approach. The purpose of this study was to analyze the survival rate of single implants in second molar restoration and evaluate the effect of associated factors regarding implant length, diameter, and guided bone regeneration (GBR).
Materials and Methods: Altogether, 137 patients (77 males and 60 females; age range: 19 to 81 years; mean age 53.6 years) were treated with 147 single implants in the mandibular second molar region by an experienced surgeon between 2006 and 2019. The cumulative survival rate (CSR) was analyzed using a life-table analysis and the effect of associated factors on the survival was compared using Log Rank Test.
Results: Four of the 147 implants failed. Thus, the five-year cumulative survival rate was 97.1%. In three out of four cases, implant failed after the 4th, 6th, and 8th year of implantation. In one of the four cases, the implant failed within four months of implantation. A significant change was observed in CSR with respect to the implant length. However, no difference was observed in CSR with respect to the implant diameter and GBR.
Conclusion: This study reveals that replacing the mandibular second molar with a single implant is an effective and reliable treatment. However, the implant length over 10mm is recommended for successful result if there is sufficient residual alveolar bone.
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