Related Experiment Video
Updated: Jul 15, 2026
Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
Occlusal vertical dimension estimated from 3-dimensional facial scans using a craniometric equation: A retrospective
Louise Viel1, Virginie Chuy2, Justine Bouscasse3
1Graduate student, UFR des Sciences Odontologiques de l'Université de Bordeaux; Service de Médecine Bucco-Dentaire, Hôpital Saint-André, CHU de Bordeaux, France.
Statement Of Problem:
Establishing an appropriate occlusal vertical dimension (OVD) is a critical and challenging step in complete mouth rehabilitation, particularly in patients with severe tooth wear or edentulism. Although craniometric equations have been proposed to estimate OVD from facial measurements, their applicability to 3-dimensional (3D) facial scans within digital workflows remains unclear.
Purpose:
The purpose of this retrospective clinical study was to determine whether OVD estimated from 3D facial scans using a craniometric equation is clinically equivalent to OVD measured directly.
Material And Methods:
Facial anthropometric measurements and OVD were obtained both clinically and from 3D facial scans acquired with 3 different devices (Artec Spider scanner; Artec 3D, Einstar; Shining 3D, Qlone on iPhone 13 Pro; Apple Inc) in 23 dentate participants. Based on these facial measurements, OVD was also estimated for each modality (clinical and scanned) using a craniometric equation. Equivalence was assessed with the two 1-sided t test (TOST) procedure using a predefined clinical equivalence margin of ±2 mm.
Results:
Equivalence was not observed between equation-based OVD derived from scan measurements and clinically measured OVD for any device. Scan-derived equation-based OVD values systematically differed from clinical measurements by -3.1 to -3.6 mm, exceeding the predefined equivalence margin.
Conclusions:
Estimation of OVD from 3D facial scans using a craniometric equation cannot be considered clinically precise and should not replace conventional clinical methods for determining OVD.
More Related Videos
08:03Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
10:42A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
