Interrelations in Dental Development. I. Interrelationships within the Dentition

¹ Fels Research Institute, Antioch College, Yellow Springs, Ohio

Interrelationships for five stages of tooth calcification and movement were investigated in 259 white Ohio-born boys and girls.

For a total of 190 combined-sex correlations covering a 13-year range, the mean value of r was 0.42, indicating a moderate degree of relationship over the time span involved.

Expectably, intratooth, intraclass, and intrastage correlations were higher than intertooth, interclass, and interstage correlations, suggesting some degree of functional autonomy of individual teeth, morphological classes, and stages of development.

The mean intercorrelations for the five teeth considered were of the same order of magnitude: neither P₂ nor M₂ was conspicuously lower in communality.

Predictability decreased from approximately 0.6 over a 1-year period to approximately 0.2 after 13 years had elapsed, thus resembling predictability values for the number of hand-wrist ossification centers.

This article has been cited by other articles:

				E.T. Parner, J.M. Heidmann, I. Kjaer, M. Vaeth, and S. Poulsen Biological Interpretation of the Correlation of Emergence Times of Permanent Teeth J. Dent. Res., July 1, 2002; 81(7): 451 - 454. [Abstract] [Full Text] [PDF]