Related Experiment Video
Updated: Feb 17, 2026
Author Spotlight: 3D Movement Assessment of Maxillary Posterior Teeth in Clear Aligner Treatment
Published on: February 23, 2024
3D-Analysis of Correlations Between Facial Measurements and Maxillary Anterior Tooth Dimensions Using Integrated
Kathrin Seidel1, Philipp Hericks1, Basel El-Sabbagh1
1Department of Prosthetic Dentistry, Center for Dentistry and Oral Medicine (Carolinum), Goethe University Frankfurt, Frankfurt, Germany.
Objective:
This study aimed to evaluate associations between facial measurements and maxillary anterior tooth dimensions using integrated three-dimensional (3D) facial and intraoral datasets.
Materials And Methods:
Eighty-one participants underwent facial and intraoral 3D scanning. Intraoral parameters included mesiodistal (MeanW1-3) and cervicoincisal dimensions (MeanL1-3) of maxillary anterior teeth and canine tip-to-tip distance (TTD). Extraoral parameters comprised interpupillary (IPD), innercanthal (ICD), and interalar distances (IAD). Intra-examiner reliability was evaluated, and Pearson correlation analyses and proportional ratios were calculated.
Results:
Mean measurements were MeanW1 8.76 ± 0.54 mm, MeanL1 10.3 ± 1.01 mm, TTD 34.4 ± 2.21 mm, IAD 33.5 ± 2.89 mm, IPD 61.1 ± 3.29 mm, and ICD 37.0 ± 3.39 mm. IAD showed significant correlations with MeanW1 (p = 0.022) and TTD (p = 0.004), whereas IPD correlated only with TTD (p = 0.006). ICD showed no significant correlations. The TTD/IAD ratio (1.03 ± 0.09) remained consistent across participants. One quarter of TTD approximated the width of a central incisor (MeanW1/TTD = 0.255 ± 0.014).
Conclusion:
IAD demonstrated the most consistent association with anterior tooth dimensions. The ratio between TTD and IAD was 1.03.
Clinical Significance:
The established ratio between TTD/IAD was approximately 1:1, and one quarter of the TTD corresponded to the width of a central incisor. These measured proportions provide quantitative facial and dental relationships that support the preliminary estimation of anterior tooth dimensions when pre-extraction records are absent.
Trial Registration:
https://drks.de/search/de/trial/DRKS00030166.
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
05:49Author Spotlight: Advancing CBCT and Digital Dental Image Integration with AI-Assisted Digitization
Published on: February 23, 2024
