View : 154 Download: 22

Combining virtual model and cone beam computed tomography to assess periodontal changes after anterior tooth movement

Title
Combining virtual model and cone beam computed tomography to assess periodontal changes after anterior tooth movement
Authors
Kim, Sun-HyunLee, Jong-BinKim, Min-JiPang, Eun-Kyoung
Ewha Authors
방은경김민지
SCOPUS Author ID
방은경scopus; 김민지scopus
Issue Date
2018
Journal Title
BMC ORAL HEALTH
ISSN
1472-6831JCR Link
Citation
BMC ORAL HEALTH vol. 18
Keywords
CBCTVirtual modelGingival thicknessAlveolar bone thickness
Publisher
BMC
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
BackgroundOrthodontic force may affect not only periodontal ligaments, but also the alveoloar bone and the gingiva according to the type of tooth movements. The authors assessed changes in gingival thickness (GT) and alveolar bone thickness (ABT) after orthodontic treatment using a new method.MethodsThis study included 408 teeth (208 central incisors, 200 lateral incisors) from the upper and lower 4 anterior teeth of 52 patients who had completed orthodontic treatment. GT and ABT were measured using virtual casts fabricated from impressions and cone beam computed tomography (CBCT). Two sectioned images of every tooth axis were acquired by partitioning each tooth with a line connecting the midpoint of the incisal edge to the midpoint of the cementoenamel junction in the virtual models and the root apex in CBCT images. After superimposing the two sectioned images, GT and ABT were measured before and after orthodontic tooth movement. Correlations between GT and ABT before and after treatment, and changes in GT and ABT associated with sex, tooth arch, tooth position, orthognathic surgery, and tooth inclination and rotation were assessed.ResultsBefore orthodontic treatment, GT and ABT were significantly correlated. Patients who underwent orthognathic surgery exhibited an increase in GT thickness compared with those who did not. ABT was significantly decreased in proclined teeth and in rotated teeth.ConclusionsGT and ABT can be affected by the nature of tooth movement and can be accurately assessed by comparing sectioned CBCT images and virtual models.
DOI
10.1186/s12903-018-0635-y
Appears in Collections:
의과대학 > 의학과 > Journal papers
Files in This Item:
Combining virtual model.pdf(4.81 MB) Download
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE