Application of 3D tooth model for monitoring of implant space and inter-root distance without radiographs: a proof of concept study

International Journal of Implant Dentistry

Gyu-Hyoung Lee¹  Kyungmin Lee¹ 

[1] Department of Orthodontics, School of Dentistry, Chonnam National University, 33 Yongbong-ro, Buk-gu, 61186, Gwangju, South Korea;

关键词: 3D tooth model;    CBCT;    Intraoral scan;    Root position;    Radiation;   

DOI  :  10.1186/s40729-020-00253-3

来源: Springer

【 摘 要 】

BackgroundRadiographs are integral in evaluating implant space and inter-root distance. The purpose of this report is to introduce a method for evaluating the 3D root position with minimal radiation using a 3D tooth model composed of an intraoral-scanned crown and a cone-beam computed tomography (CBCT)-scanned root.Materials and methodsIntraoral scan and CBCT scan of the patient were obtained before treatment. In the CBCT image, tooth segmentation was performed by isolating individual teeth from the maxillary and mandibular alveolar bone using software program. The 3D tooth model was fabricated by combining segmented individual teeth with the intraoral scan.ResultsA post-treatment intraoral scan was integrated into the tooth model, and the resulting position of the root could be predicted without additional radiographs. It is possible to monitor the root position after a pretreatment CBCT scan using a 3D tooth model without additional radiographs.ConclusionThe application of the 3D tooth model benefits the patient by reducing repeated radiation exposure while providing the clinician with a precise treatment evaluation to monitor tooth movement.

【 授权许可】

CC BY