To study the matching of dental and basal bone arch form in three-dimensional space in individual normal occlusion, to provide references for the clinical treatment.

A total of 30 subjects with individual normal occlusion were selected and taken CBCT, the dental arch and the basal bone arch mark point coordinates were processed by mathematical method in order to establish the matching mathematical equation of maxilla and mandibular, the matching mathematical equation of the dental arch and basal bone arch by statistical analysis.

The width and depth of maxilla and mandibular dental arch were highly correlated in canine region and the second molar region. The width and depth of basal bone arch were moderate correlated in canine region, and strong correlated in the second molar region.

Maxilla and mandibular dental arch, the basal bone arch of individual normal occlusion were highly correlated in the width and depth of canine region and the second molar region. Personalized dental arch matching mathematical equation was established through the regression equation.