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Type:	Artigo de Periódico
Title:	New mandibular indices in cone beam computed tomography to identify low bone mineral density in postmenopausal women
Authors:	Sâmila Gonçalves Barra Isadora Pereira Gomes Tânia Mara Pimenta Amaral Cláudia Borges Brasileiro Lucas Guimarães Abreu Ricardo Alves Mesquita
Abstract:	Objective: The aim of this study was to evaluate new radiomorphometric indices in cone beam computed tomography (CBCT) for assessing bone mineral density (BMD) status in postmenopausal women. Study design: Mandibular inferior cortical bone thickness was evaluated in 48 postmenopausal women in cross-sectional images at 4 sites: (1) symphysis (S): cross-sectional image equidistant from the centers of the right and left mental foramina (MF); (2) anterior (A): 10 mm anterior to the MF; (3) molar (M): 10 mm posterior to the MF; and (4) posterior (P): 25 mm posterior to the MF. Participants underwent dual-energy x-ray absorptiometry and were divided into normal, osteopenia, and osteoporosis groups. In the study, t tests with Bonferroni correction were conducted. Statistical significance was set at P < .017. Receiver operator characteristic (ROC) analyses were performed. Results: Mean S index was significantly lower in osteoporosis than in osteopenia (P = .005). Mean M index was significantly lower in osteopenia (P < .001) and osteoporosis (P = .001) than in normal individuals. Mean P index was significantly lower in osteoporosis than in normal patients (P = .008). ROC values ranged between 0.643 and 0.740. Cortical thicknesses separating normal from abnormal varied from 1.73 mm to 3.37 mm. Conclusions: M and P indices in CBCT may be useful for identifying low BMD in postmenopausal women.
Subject:	Cone-beam computed tomography Bone density X-rays Bone diseases, metabolic Osteoporosis Cortical bone Mandible
language:	eng
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	FAO - DEPARTAMENTO DE CLÍNICA FAO - DEPARTAMENTO DE ODONTOPEDIATRIA E ORTODONTIA
Rights:	Acesso Restrito
metadata.dc.identifier.doi:	https://doi.org/10.1016/j.oooo.2020.07.016
URI:	http://hdl.handle.net/1843/57962
Issue Date:	Mar-2021
metadata.dc.url.externa:	https://www.sciencedirect.com/science/article/abs/pii/S2212440320311214#:~:text=Mean%20M%20index%20was%20significantly%20lower%20in%20osteopenia,abnormal%20varied%20from%201.73%20mm%20to%203.37%20mm.
metadata.dc.relation.ispartof:	Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Appears in Collections:	Artigo de Periódico

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