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
- 2018.9
- 수록면
- 283 - 291 (9page)
이용수
초록· 키워드
오류제보하기
Objective: This study was conducted to perform histomorphometric evaluations of the bone surrounding orthodontic miniscrews according to their proximity to the adjacent tooth roots in the posterior mandible of beagle dogs. Methods: Four male beagle dogs were used for this study. Six orthodontic miniscrews were placed in the interradicular spaces in the posterior mandible of each dog (n = 24). The implanted miniscrews were classified into no loading, immediate loading, and delayed loading groups according to the loading time. At 6 weeks after screw placement, the animals were sacrificed, and tissue blocks including the miniscrews were harvested for histological examinations. After analysis of the histological sections, the miniscrews were categorized into three additional groups according to the root proximity: high root proximity, low root proximity, and safe distance groups. Differences in the bone–implant contact (BIC, %) among the root proximity groups and loading time groups were determined using statistical analyses. Results: No BIC was observed within the bundle bone invaded by the miniscrew threads. Narrowing of the periodontal ligament space was observed in cases where the miniscrew threads touched the bundle bone. BIC (%) was significantly lower in the high root proximity group than in the low root proximity and safe distance groups. However, BIC (%) showed no significant differences among the loading time groups. Conclusions: Regardless of the loading time, the stability of an orthodontic miniscrew is decreased if it is in contact with the bundle bone as well as the adjacent tooth root.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (31)
참고문헌 신청
[학술지(정기간행물)] - Liou EJ / 2004 / Do miniscrews remain stationary under orthodontic forces? / Am J Orthod Dentofacial Orthop 126 : 42 ~ 47
[학술지(정기간행물)] - Kravitz ND / 2007 / Risks and complications of orthodontic miniscrews / Am J Orthod Dentofacial Orthop 131 (4 Suppl) : S43 ~ S51
[학술지(정기간행물)] - Wang YC / 2008 / Comparison of the loading behavior of self-drilling and predrilled miniscrews throughout orthodontic loading / Am J Orthod Dentofacial Orthop 133 : 38 ~ 43
[학술지(정기간행물)] - Papageorgiou SN / 2012 / Failure rates and associated risk factors of orthodontic miniscrew implants: a meta-analysis / Am J Orthod Dentofacial Orthop 142 : 577 ~ 595
[학술지(정기간행물)] - Kang YG / 2009 / Stability of mini-screws invading the dental roots and their impact on the paradental tissues in beagles / Angle Orthod 79 : 248 ~ 255
[학술지(정기간행물)] - Kravitz ND / 2007 / Risks and complications of orthodontic miniscrews / Am J Orthod Dentofacial Orthop 131 (4 Suppl) : S43 ~ S51
[학술지(정기간행물)] - Wang YC / 2008 / Comparison of the loading behavior of self-drilling and predrilled miniscrews throughout orthodontic loading / Am J Orthod Dentofacial Orthop 133 : 38 ~ 43
[학술지(정기간행물)] - Papageorgiou SN / 2012 / Failure rates and associated risk factors of orthodontic miniscrew implants: a meta-analysis / Am J Orthod Dentofacial Orthop 142 : 577 ~ 595
[학술지(정기간행물)] - Kang YG / 2009 / Stability of mini-screws invading the dental roots and their impact on the paradental tissues in beagles / Angle Orthod 79 : 248 ~ 255
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UCI(KEPA) : I410-ECN-0101-2018-515-003398248