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.
이용수
초록· 키워드
오류제보하기
Objective: The aim of this study was to evaluate the stress distribution and displacement of various craniofacial structures after nonsurgical rapid palatal expansion (RPE) with conventional (C-RPE), bone-borne (B-RPE), and miniscrew-assisted (MARPE) expanders for young adults using three-dimensional finite element analysis (3D FEA). Methods: Conventional, bone-borne, and miniscrew-assisted palatal expanders were designed to simulate expansion in a 3D FE model created from a 20-year-old human dry skull. Stress distribution and the displacement pattern for each circumaxillary suture and anchor tooth were calculated. Results: The results showed that C-RPE induced the greatest stress along the frontal process of the maxilla and around the anchor teeth, followed by the suture area, whereas B-RPE generated the greatest stress around the miniscrew, although the area was limited within the suture. Compared with the other appliances, MARPE caused relatively even stress distribution, decreased the stress on the buccal plate of the anchor teeth, and reduced tipping of the anchor teeth. Conclusions: The findings of this study suggest that the incorporation of miniscrews in RPE devices may contribute to force delivery to the sutures and a decrease in excessive stress on the buccal plate. Thus, MARPE may serve as an effective modality for the nonsurgical treatment of transverse maxillary deficiency in young adults.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (30)
참고문헌 신청
Angell EH / 1860 / Treatment of irregularity of the permanent or adult teeth / Dental Cosmos 1:540
Persson M / 1977 / Palatal suture closure in man from 15 to 35 years of age / Am J Orthod 72:42~52
Melsen B / 1982 / The postnatal development of the palatomaxillary region studied on human autopsy material / Am J Orthod 82:329~342
Lee KJ / 2010 / Miniscrewassisted nonsurgical palatal expansion before orthognathic surgery for a patient with severe mandibular prognathism / Am J Orthod Dentofacial Orthop 137:830~839
Melsen B / 1975 / Palatal growth studied on human autopsy material. A histologic microradiographic study / Am J Orthod 68:42~54
Persson M / 1977 / Palatal suture closure in man from 15 to 35 years of age / Am J Orthod 72:42~52
Melsen B / 1982 / The postnatal development of the palatomaxillary region studied on human autopsy material / Am J Orthod 82:329~342
Lee KJ / 2010 / Miniscrewassisted nonsurgical palatal expansion before orthognathic surgery for a patient with severe mandibular prognathism / Am J Orthod Dentofacial Orthop 137:830~839
Melsen B / 1975 / Palatal growth studied on human autopsy material. A histologic microradiographic study / Am J Orthod 68:42~54
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UCI(KEPA) : I410-ECN-0101-2018-515-001806650