Purpose: To investigate the quantitative relationships between the outlines of the face, the maxillary central incisor, and the maxillary arch by using Fourier analysis as well as spectrophotometric shade selection in different age groups. Material and methods: Frontal facial photographs and irreversible hydrocolloid impressions of the maxilla were obtained from 100 dentate individuals (50 men, 50 women) from different age groups 20-30 yrs, 30-40yrs, 40-50yrs. On the resultant casts, standardized photographs were made for the dental arch and the maxillary central incisor. The outlines of the face, dental arch, and tooth were digitally traced and the digitized curved outlines were converted into X-Y coordinates with special software, which, in turn, were imported into Fourier Shape Descriptor software for harmonic analysis. The quantitative outputs of Fourier analysis were analyzed and tested with statistical software to investigate the differences across the shapes of the 3 outlines under study. Shade selection was done with Vita Easy Shade of the central incisor for each patient for analysis. Results: Facial and tooth outlines were similar for each sex, although the similarity was stronger among the men. By contrast, no relationship was found between tooth and maxillary arch outlines or between face and maxillary arch outlines.A1 is the most common shade in both the sexes. Conclusions: Face and tooth forms were quantitatively related. Accurate shade selection along with face form as a reliable guide can help to attain an esthetically pleasing prosthesis for edentulous patients.