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Trueness of cone beam computed tomography versus intra‐oral scanner derived three‐dimensional digital models: An ex vivo study
Author(s) -
AlRimawi Ali,
Shaheen Eman,
Albdour Emad A.,
Shujaat Sohaib,
Politis Constantinus,
Jacobs Reinhilde
Publication year - 2019
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/clr.13434
Subject(s) - cone beam computed tomography , scanner , protocol (science) , computed tomography , medicine , orthodontics , computer science , artificial intelligence , radiology , pathology , alternative medicine
Abstract Objectives To compare the trueness of 3D digital models derived from CBCT and IOS and to evaluate their accuracy for implementation in oral implant rehabilitation. Materials and methods A dry human mandible with a full set of intact teeth was included in the study. The mandible was scanned using Trios IOS and four different CBCT machines with various protocols for generation of 3D digital models. A µCT was utilized to scan each tooth individually. Following registration and segmentation, the trueness evaluation of 3D digital models was carried out by part comparison analysis and color‐coded mapping of the superimposed teeth surfaces. Results The four CBCT‐derived 3D digital models with different protocols had better trueness than Trios IOS. NewTom VGi evo (110 KV), ProMax 3D (90 kV), 3D Accuitomo 170 (90 kV), Green 21 (110 kV), and Green 21 (90 kV) showed significantly better trueness than IOS. However, 3D Accuitomo 170 and ProMax 3D CBCT devices with 70 kV protocol showed better trueness without any significant difference with IOS. Conclusion CBCT‐derived 3D digital models showed better trueness when compared with IOS. When CBCT data are available for preoperative planning for oral implant rehabilitation, it may preclude the need for IOS for obtaining 3D study models.