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
- 339 - 345 (7page)
이용수
초록· 키워드
오류제보하기
Objective: The purpose of this study was to clarify the effects of continuous force application for extrusive tipping movement and occlusal interference on periapical root resorption in the rat mandibular first molar. Methods: We constructed an appliance comprising a titanium screw implant with a cobalt–chromium post as the anchorage unit and a nickel–titanium closed coil spring (50 cN) as the active unit. Force was applied on the mandibular left first molar of rats for 8 (n = 10) and 15 days (n = 10; experimental groups), with the tooth in occlusion. Five rats were included as a non-treated control group to examine the body effect of the appliance. Active root resorption lacunae, identified using tartrate-resistant acid phosphatase, were evaluated in terms of the length, depth, and area. Results: The rat mandibular first molars were mesially tipped and extruded in the occlusal direction. This mesio-occlusal tipping movement and occlusion resulted in the formation of a compression zone and active root resorption lacunae in the distoapical third of the distal roots. However, there was no significant difference in the amount of root resorption between the two experimental groups. The control group did not exhibit any active root resorption lacunae. Conclusions: Periapical root resorption was induced by continuous extrusive tipping force and occlusal interference in rat mandibular molars. These data suggest that we orthodontists had better take care not to induce occlusal interference during our orthodontic treatment.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
CONCLUSION
REFERENCES
참고문헌 (30)
참고문헌 신청
[학술지(정기간행물)] - Roscoe MG / 2015 / Association of orthodontic force system and root resorption: a systematic review / Am J Orthod Dentofacial Orthop 147 : 610 ~ 626
[학술지(정기간행물)] - Weltman B / 2010 / Root resorption associated with orthodontic tooth movement: a systematic review / Am J Orthod Dentofacial Orthop 137 : 462 ~ 476
[학술지(정기간행물)] - Andreasen FM / 1988 / Resorption and mineralization processes following root fracture of permanent incisors / Endod Dent Traumatol 4 : 202 ~ 214
[학술지(정기간행물)] - Wedenberg C / 1985 / Experimental internal resorption in monkey teeth / Endod Dent Traumatol 1 : 221 ~ 227
[학술지(정기간행물)] - Birkedal-Hansen H / 1973 / External root resorption caused by luxation of rat molars / Scand J Dent Res 81 : 47 ~ 61
[학술지(정기간행물)] - Weltman B / 2010 / Root resorption associated with orthodontic tooth movement: a systematic review / Am J Orthod Dentofacial Orthop 137 : 462 ~ 476
[학술지(정기간행물)] - Andreasen FM / 1988 / Resorption and mineralization processes following root fracture of permanent incisors / Endod Dent Traumatol 4 : 202 ~ 214
[학술지(정기간행물)] - Wedenberg C / 1985 / Experimental internal resorption in monkey teeth / Endod Dent Traumatol 1 : 221 ~ 227
[학술지(정기간행물)] - Birkedal-Hansen H / 1973 / External root resorption caused by luxation of rat molars / Scand J Dent Res 81 : 47 ~ 61
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UCI(KEPA) : I410-ECN-0101-2018-515-003398304