Comparison of Three-Dimensional and Two-Dimensional Computed Tomography Scans for Cephalometric Mandibular Measurements in Thailand: A Retrospective Study
Year: 2025
Type: article
Study design: Observational Study
Abstract: Objective: To evaluate whether 2D computerized tomography (CT) cephalometric measurements are comparable to 3D CT measurements of the mandible bone. Material and Methods: In this retrospective study, we collected data from patients who visited the emergency room of Songklanagarind Hospital between 2017 and 2020. A single operator identified 11 landmarks for cephalometric measurements in all images. Each image underwent three separate tracings, and subsequent repeated measurements were employed for further statistical analyses. Results: This study included 135 patients (87 males and 48 females). The mean age of the patients was 40.48±15 years. Nine of the eleven parameters showed a significant difference between the 2D and 3D cephalometric measurements (p-value<0.05). Male patients had a longer mandible than female patients, and there was a statistically significant size difference between the sexes (p-value<0.05), except for the mental foramen size (pair t-test >0.05). Length measurements displayed a statistically significant positive correlation with height and BSA (p-value<0.05), while no correlation was observed with body mass index (BMI) (p-value>0.05). Angle measurements did not exhibit any correlation with height, BSA, or BMI. Conclusion: In this study, 2D cephalometric measurements were significantly different from 3D CT measurements in each individual. Based on these findings, we recommend that surgeons should consider using 3D CT cephalometric measurements.
Source: PSU Medical Journal
Institution: Prince of Songkla University
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: hybrid
OpenAlex ID: W4409565152