Home Bratislava Medical Journal 2019 Bratislava Medical Journal Vol.120, No.2, p.155–160, 2019

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345
 

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Bratislava Medical Journal Vol.120, No.2, p.155–160, 2019

Title: Proclination-induced changes in the labial cortical bone thickness of lower incisors
Author: D. Filipova, T. Dostalova, V. Filipi, M. Kaminek

Abstract: OBJECTIVES: We sought to objectivize the overall alveolar bone thickness changes in lower incisors after orthodontic intervention.
BACKGROUND: The effect of orthodontic treatment on the cortical bone, specifically the clinical implications of proclination-induced change, have long been a matter of dispute.
METHODS: Cone-beam computed tomographs of 58 patients were obtained before and after treatment and labial cortical bone thickness and overall alveolus width were measured in sagittal sections in the distance of 3, 6, 9 and 12 mm apically from the cemento-enamel junction.
RESULTS: A statistically significant decrease of the cortical bone thickness in all four incisors was found at the levels 3, 6 and 9 mm (p 0.05). Moreover, no correlation was found between bone thickness change and extent of the incisor movement.
CONCLUSION: Our results point to a marked cortical bone loss after proclination of lower incisors, furnishing a sound basis for caution in treatment planning due to the considerable risk of alveolar defect development, especially in patients with low initial bone thickness (Tab. 6, Fig. 2, Ref. 25).

Keywords: orthodontics, cone-beam computed tomography, incisor, cortical bone, bone remodelin
Published online: 17-Feb-2019
Year: 2019, Volume: 120, Issue: 2 Page From: 155, Page To: 160
doi:10.4149/BLL_2019_025


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