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Inter‐ and Intra‐Operator Reliability of Facial and Dental Measurements Using 3D‐Stereophotogrammetry
Author(s) -
Ceinos Romain,
Tardivo Delphine,
Bertrand MarieFrance,
LupiPegurier Laurence
Publication year - 2016
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12194
Subject(s) - intraclass correlation , reproducibility , reliability (semiconductor) , orthodontics , medicine , computer science , cone beam computed tomography , nuclear medicine , biomedical engineering , mathematics , computed tomography , radiology , statistics , physics , power (physics) , quantum mechanics
Abstract Objectives The goal of this study was to assess the reproducibility of an innovative method for facial analysis with three‐dimensional‐stereophotogrammetry (3D‐spg). Methods Twelve subjects with no obvious malocclusion participated in this study. For each of them, four photographs were acquired using the LifeViz TM , an absolute calibration 3D‐spg system. The facial reconstructions were analyzed with the DermaPix TM image management software. Two different operators recorded distances between landmarks and each operator repeated the measurements after one week. The intra‐ and inter‐examiner reproducibilities were assessed using the Intraclass Correlation Coefficient (ICC). Results This study showed reproducible intra and inter‐examiners results for facial measurements (ICC comprised between 0.732 and 0.976) except for measurements that involve the inner part of the dental corridor (ICC comprised between 0.598 and 0.914). Conclusion The measurements recorded by 3D‐LifeViz TM system are accurate and reliable for research and clinical use. Moreover, it is simple and inexpensive compared with other 3D methods (laser scanner, 3D Computed Tomography, and 3D Cone Beam CT). Clinical Significance The inter‐ and intra‐operator reliability of the LifeViz TM 3D‐spg method was demonstrated. The LifeViz TM 3D‐spg method might be a useful method to accomplish indirect 3D measurements that are relevant to dental and facial diagnosis. (J Esthet Restor Dent, 2016)