Early adult changes in the skeletal and soft-tissue profile

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Abstract
Early adult changes in the facial profile were studied longitudinally from 21 to 26 years of age in a Swedish Caucasian sample of 50 female and 101 male dental students. Lateral cephalometric radiographs were analysed by the conventional point-based method and by the structure-based method of superimposing serial films, adapted for computerized numerical analysis. Skeletal and soft tissue changes were described by 62 linear and angular variables. The magnitude of linear dimensional changes was similar in the two sexes. The largest changes were found in the vertical dimensions. Total anterior facial height increased by about 1.5 mm in the 5-year period, suggesting that the major part of the increase in vertical facial dimensions during the third decade of life takes place in the first half of this decade. Sagittal jaw relationship increased by about 0.5° in both sexes. Soft tissue changes reflected those of the vertical skeletal dimensions.

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