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AuthorAl-Warafi, Leena Ali
AuthorAl-Worafi, Naseem Ali
AuthorAl-Aroomi, Maged Ali
AuthorAlhashimi, Najah
AuthorAlsomairi, Majedh Abdo Ali
AuthorAl-Rokhami, Remsh Khaled
AuthorChen, Xi
AuthorAlhammadi, Maged Sultan
Available date2023-11-19T05:45:30Z
Publication Date2023
Publication NameBMC Oral Health
ResourceScopus
ISSN14726831
URIhttp://dx.doi.org/10.1186/s12903-023-03028-5
URIhttp://hdl.handle.net/10576/49402
AbstractObjective This study aimed to assess the alveolar bone changes following maxillary and mandibular molars’ intrusion and extrusion movements using Clear Aligners using Cone-Beam Computed Tomography (CBCT). Materials and methods This is a retrospective clinical study in which 24 adult patients with pre-designed selection criteria and a mean age of 31.1 + 9.9 years were enrolled. The alveolar bone changes around one hundred thirty-three maxillary and mandibular molars intruded or extruded by Clear Aligners therapy were analyzed from CBCT using Invivo 6.0 software. Intra- and inter-examiner reliability analysis was performed using the intra-class correlation coefficient (ICC) and Cronbach’s Alpha statistics. The paired t-test was used to analyze significant differences before and after treatment (T0-T1). The significance level was considered at P < 0.05. Result The patients were divided into two groups: extrusion (48.9%, n = 65 molars’ root) and intrusion (51.1%, n = 68 molars’ root) group. There was a significant decrease in the alveolar bone changes in the buccal surface of the mandibular right and left 1st molars in the extrusion group (-1.05 ± 0.97, -0.76 ± 1.12 mm, respectively) and the maxillary left 2nd molars in intrusion group (-0.42 ± 0.77 mm), and the lingual surface of intrusion of the mandibular left 1st molar (-0.64 ± 0.76 mm). Comparing the mean maxillary and mandibular changes (T0-T1) of both studied groups showed that the buccal alveolar bone changes for the left 1st and right 2nd molars showed a significant difference in extrusion and intrusion groups, respectively. Conclusions The buccal alveolar bone changes is considered the most affected surface following maxillary and mandibular molars’ intrusion and extrusion movements using clear aligners, with mandibular molars being more affected than the maxillary ones.
SponsorThis work was supported by Shaanxi University Joint Project (2020GXLH-Y-014), and New Medical Treatment and New Technology of the First Affiliated Hospital of Xi'an Jiaotong University (XJYFY-2017ZD02).
Languageen
PublisherBioMed Central Ltd
SubjectAlveolar bone
Clear aligners
Cone Beam Computed Tomography (CBCT)
Maxillary and mandibular molars
Vertical movements
TitleAlveolar bone changes following bi-maxillary vertical molars' movements using clear aligners
TypeArticle
Issue Number1
Volume Number23
dc.accessType Open Access


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