Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14502
ชื่อเรื่อง: Tooth movement and root resorption; The effect of ovariectomy on orthodontic force application in rats
ผู้แต่ง: Sirisoontorn I.
Hotokezaka H.
Hashimoto M.
Gonzales C.
Luppanapornlarp S.
Darendeliler M.A.
Yoshida N.
Keywords: estrogen
animal
article
bone remodeling
dental care
female
image processing
methodology
micro-computed tomography
molar tooth
ovariectomy
ovary
periodontal disease
physiology
radiography
rat
tooth disease
Wistar rat
Animals
Bone Remodeling
Dental Stress Analysis
Estrogens
Female
Image Processing, Computer-Assisted
Molar
Ovariectomy
Ovary
Rats
Rats, Wistar
Root Resorption
Tooth Movement
X-Ray Microtomography
วันที่เผยแพร่: 2011
บทคัดย่อ: Objective: To quantify the amount of tooth movement and orthodontically induced root resorption (OIRR) in ovariectomized rats. Materials and Methods: Five 10-week-old female Wistar rats undergoing ovariectomy (OVX) were investigated as the experimental group, and the other five without ovariectomy served as the control group. Four weeks after ovariectomy, 25-g nickel-titanium closed-coil springs were applied mesially to the maxillary left first molars. Micro-computed tomography was taken at day 0, 1, 3, 7, 14, 21, and 28. At day 28, the molars were extracted. The surface area of root resorption craters, depth, and volume were measured using electron and laser scanning microscopes. Results: Tooth movement gradually increased with time throughout 28 days. There was a significant difference in the amount of tooth movement between the control group and the OVX group. For OIRR, the OVX group showed wide and shallow root resorption craters scattered on the mesial root. The deep resorption craters were observed on the distal roots distributed in the cervical, middle, and apical thirds of the roots. Statistically significant differences were found between the control and the OVX groups in the depth and the volume of root resorption craters in the distal roots and the total volume of root resorption craters in all three roots. Conclusion: Ovariectomy affected not only tooth movement but also OIRR. Tooth movement in the OVX group was more rapid than the control group. Furthermore, the amount of OIRR in the OVX group was more severe than the control group. © 2011 by The EH Angle Education and Research Foundation, Inc.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14502
https://www.scopus.com/inward/record.uri?eid=2-s2.0-79960151514&doi=10.2319%2f101710-607.1&partnerID=40&md5=181c916f784daf996833af98c7bf16da
ISSN: 33219
Appears in Collections:Scopus 1983-2021

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