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
- 2020.7
- 수록면
- 268 - 277 (10page)
이용수
초록· 키워드
오류제보하기
This case report demonstrates two different uprighting mechanics separately applied to mesially tipped mandibular first and second molars. The biomechanical considerations for application of these mechanisms are also discussed. For repositioning of the first molar, which was severely tipped and deeply impacted, a novel cantilever mechanics was used. The molar tube was bonded in the buccolingual direction to facilitate insertion of a cantilever from the buccal side. By twisting the distal end of the cantilever, sufficient uprighting moment was generated. The mesial end of the cantilever was hooked over the miniscrew placed between the canine and first premolar, which could prevent exertion of an intrusive force to the anterior portion of the dentition as a side effect. For repositioning of the second molar, an uprighting mechanics using a compression force with two step bends incorporated into a nickel-titanium archwire was employed. This generated an uprighting moment as well as a distal force acting on the tipped second molar to regain the lost space for the first molar and bring it into its normal position. This epoch-making uprighting mechanics could also minimize the extrusion of the molar, thereby preventing occlusal interference by increasing interocclusal clearance between the inferiorly placed two step bends and the antagonist tooth. Consequently, the two step bends could help prevent occlusal interference. After 2 years and 11 months of active treatment, a desirable Class I occlusion was successfully achieved without permanent tooth extraction.
목차
INTRODUCTION
DIAGNOSIS AND ETIOLOGY
TREATMENT OBJECTIVES
TREATMENT ALTERNATIVES
TREATMENT PROGRESS
TREATMENT RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (28)
참고문헌 신청
Dachi SF / 1961 / A survey of 3,874 routine fullmonth radiographs. II. A study of impacted teeth / Oral Surg Oral Med Oral Pathol 14:1165~1169
Chu FC / 2003 / Prevalence of impacted teeth and associated pathologies--a radiographic study of the Hong Kong Chinese population / Hong Kong Med J 9:158~163
Keris EY / 2016 / Prevalence and characteristics of impacted permanent molars in a Turkish subpopulation / J Oral Maxillofac Radiol 4:45~49
Roberts WW 3rd / 1982 / A segmental approach to mandibular molar uprighting / Am J Orthod 81:177~184
Kuhlberg AJ / 2001 / Cantilever springs : force system and clinicalapplications / Semin Orthod 7:150~159
Chu FC / 2003 / Prevalence of impacted teeth and associated pathologies--a radiographic study of the Hong Kong Chinese population / Hong Kong Med J 9:158~163
Keris EY / 2016 / Prevalence and characteristics of impacted permanent molars in a Turkish subpopulation / J Oral Maxillofac Radiol 4:45~49
Roberts WW 3rd / 1982 / A segmental approach to mandibular molar uprighting / Am J Orthod 81:177~184
Kuhlberg AJ / 2001 / Cantilever springs : force system and clinicalapplications / Semin Orthod 7:150~159
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UCI(KEPA) : I410-ECN-0101-2020-515-000881658