Three-dimensional measurements of symmetry for the mandibular ramus
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Background: The study examines a sample of patients presenting for viscerocranial computer tomography that does not display any apparent signs of asymmetry, assesses the three-dimensional congruency of the mandibular ramus, and focuses on differences in age and gender. Methods: This cross-sectional cohort study screened viscerocranial CT data of patients without deformation or developmental anomalies. Segmentations were obtained from the left and right sides and superimposed according to the best-fit alignment. Comparisons were made to evaluate three-dimensional congruency and compared between subgroups according to age and gender. Results: Two hundred and sixty-eight patients were screened, and one hundred patients met the inclusion criteria. There were no statistical differences between the left and right sides of the mandibular ramus. Also, there were no differences between the subgroups. The overall root mean square was 0.75 ± 0.15 mm, and the mean absolute distance from the mean was 0.54 ± 0.10 mm. Conclusion: The mean difference was less than one millimetre, far below the two-millimetre distance described in the literature that defines relative symmetry. Our study population displays a high degree of three-dimensional congruency. Our findings help to understand that there is sufficient three-dimensional congruency of the mandibular ramus, thus contributing to facilitating CAD-CAM-based procedures based on symmetry for this specific anatomic structure.
Details
Original language | English |
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Article number | 152229 |
Journal | Annals of Anatomy |
Volume | 253 |
Publication status | Published - Apr 2024 |
Peer-reviewed | Yes |
External IDs
PubMed | 38367950 |
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Keywords
ASJC Scopus subject areas
Keywords
- Computer tomography, Lower jaw, Mandibular ramus, Maxillofacial, Patient-specific implant, Symmetry