Anatomical crown width/length ratios of worn and unworn maxillary teeth in Asian subjects.

Crown width/length ratios have been considered an important aspect in the esthetic zone. Because previous investigations focused on Caucasian populations, limited information is available on other ethnic groups to propose a comprehensive approach to anterior maxillary teeth. The purpose of this study was to analyze the dimensions of anatomical crowns of maxillary anterior tooth groups with respect to width, length, and width/length ratios among an Asian population. The tooth dimensions presented in this investigation may serve as guidelines for treatment planning in restorative dentistry and periodontal surgery for this particular ethnic group.