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The International Journal of Adult Orthodontics & Orthognathic Surgery
(Published from 1986-2002)

Edited by Robert L. Vanarsdall, DDS and Raymond P. White, Jr, DDS, PhD

Continued by World Journal of Orthodontics.

ISSN 0742-1931

The International Adult Orthodontics & Orthognathic Surgery
Volume 17, Issue 1


Three-dimensional hard tissue palatal size and shape: A 10-year longitudinal evaluation in healthy adults

Virgilio F. Ferrario,MD, Chiarella Sforza,MD, Claudia Dellavia,DDS, Anna Colombo, DDS, PhD, Raffaella P. Ferrari,PhD

A 10-year longitudinal evaluation of the morphology (size and shape)of hard tissue palate was performed in 6 female and 6 male healthyadults (mean age at the second evaluation was 33 years, SD = 2.2). All subjects had a complete permanent dentition,including the second molars, and were free from respiratory problems. Palatal landmarks were digitized with a computerized 3D instrument, and their coordinates were used to derive a mathematical model of palatal form. Palatal shape (size-independent) was assessed by a fourth-grade polynomial in the sagittal and frontal plane projections. Palatal dimensions in the frontal and sagittal planes were computed and compared between the 2 evaluations by paired Student t tests. A great variability was observed, and no significant modifications in size were found (P > .05 for all variables).No variations in shape were observed. Sex had no significant effect for any variable (Student t for independent samples, P > .05).This study showed that in healthy subjects, hard tissue palatal morphology does not seem to change between the third and the fourth decades of life. (Int J Adult Orthod Orthognath Surg 2002;17: 5158)

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