Three-Dimensional Analysis of Age-Related Orbital and Midfacial Bone Remodeling in Asians.

BACKGROUND

Facial bony changes vary among races, yet few studies have been conducted in Asians.

OBJECTIVE

To analyze the aging of orbital and midfacial bones in Asians.

METHODS

Based on the two-dimensional data obtained from the computed tomography scanner of imaging department, 3D reconstructions were conducted to take measurements (orbital diagonal diameter, orbital width, orbital area, maxillary angle, midfacial height, pyriform angle, pyriform width, and pyriform area).

RESULTS

In this retrospective study of 261 subjects, a significant decrease in the orbital diagonal diameter, orbital width, and midfacial height was found in men, whereas women displayed a significant increase in the pyriform width and a significant decrease in maxillary angle and midfacial height by three-dimensional analysis.

CONCLUSION

This study verifies the minor female changes in the orbital region and less dramatic male changes in the midfacial region compared with that in Caucasians. Individualized treatment should be performed according to different genders and races. Further exploration of facial bone metabolism may have valuable implications for Asians.