Correlation and multiple regression analysis of the central incisors and gingival color relationship.

Document Type : Original Article

Author

Associate professor, department of prosthodontics, faculty of dentistry, Alexandria university, Egypt.

Abstract

Introduction
The color of the gingiva was thought to be valuable assist in determining the color of the missing central incisors. The aim of this study was to investigate the correlation between CIE L*a*b* color coordinates of central incisor teeth and attached gingiva.
Materials and methods
Two hundred patients participated in this study, the color coordinates L*a*b* of the central incisors and attached gingiva was determined by the clinical spectrophotometer Shadepilot, Pearson's correlation and multiple regression were used to assess whether one can predict the value of the tooth color coordinates based on the values of gingival color.
Results
The results of current work showed significant correlation of the teeth to gingival color, except for maxillary central incisor a*, and showed that gingival color can be used to predict the color of missing central incisor teeth.
Conclusion
Within the limitation of the study, it was concluded that the significant correlation found between central incisors and gingival color.
Keywords: Attached gingiva color, CIELAB color system, Spectrophotometer, Tooth color.

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