Accuracy of three-dimensional periodontal ligament models generated using cone-beam computed tomography at different resolutions for the assessment of periodontal bone loss.

Content Provider	Europe PMC
Author	Lyu, Hangmiao Xu, Li Ma, Huimin Hou, Jianxia Wang, Xiaoxia Wang, Yong Zhao, Yijiao Li, Weiran Li, Xiaotong
Copyright Year	2023
Abstract	ObjectiveTo develop a method for generating three-dimensional (3D) digital models of the periodontal ligament (PDL) using 3D cone-beam computed tomography (CBCT) reconstruction and to evaluate the accuracy and agreement of the 3D PDL models in the measurement of periodontal bone loss.MethodsCBCT data collected from four patients with skeletal Class III malocclusion prior to periodontal surgery were reconstructed at three voxel sizes (0.2 mm, 0.25 mm, and 0.3 mm), and 3D tooth and alveolar bone models were generated to obtain digital PDL models for the maxillary and mandibular anterior teeth. Linear measurements of the alveolar bone crest obtained during periodontal surgery were compared with the digital measurements for assessment of the accuracy of the digital models. The agreement and reliability of the digital PDL models were analyzed using intra- and interexaminer correlation coefficients and Bland–Altman plots.ResultsDigital models of the maxillary and mandibular anterior teeth, PDL, and alveolar bone of the four patients were successfully established. Relative to the intraoperative measurements, linear measurements obtained from the 3D digital models were accurate, and there were no significant differences among different voxel sizes at different sites. High diagnostic coincidence rates were found for the maxillary anterior teeth. The digital models showed high intra- and interexaminer agreement.ConclusionsDigital PDL models generated by 3D CBCT reconstruction can provide accurate and useful information regarding the alveolar crest morphology and facilitate reproducible measurements. This could assist clinicians in the evaluation of periodontal prognosis and establishment of an appropriate orthodontic treatment plan.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC10040289&blobtype=pdf
ISSN	22347518
Journal	Korean Journal of Orthodontics [Korean J Orthod]
Volume Number	53
DOI	10.4041/kjod22.120
PubMed Central reference number	PMC10040289
Issue Number	2
PubMed reference number	36960719
e-ISSN	2005372X
Language	English
Publisher	Korean Association of Orthodontists
Publisher Date	2023-03-01
Access Restriction	Open
Rights License	This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. © 2023 The Korean Association of Orthodontists.
Subject Keyword	Digital models Three-dimensional reconstruction Cone-beam computed tomography
Content Type	Text
Resource Type	Article
Subject	Orthodontics