Three Dimensional Measurement of the Palate Using the Semiconductor Laser

1. Changes in the Palate Section Areas, Palate Projection Areas and Palate Volumes in the Deciduous Dentition according to Age

Abstract

Using the deciduous dentition models of 3-year olds,4-year olds and 5-year olds, we measured the three dimensions of the palate section areas, projection areas and volumes using the semiconductor laser. We reviewed also the changes in the ages of the boys and girls in comparison.
The results were as follows;
1. The palate section areas of the width of the deciduous canines and primary first molars decreased due to gingival swelling caused by the erupting permanent incisors as age increased.
2. The palate section areas of the width of deciduous second molar and second molar distal edge increased due to the enlargement of the alveolar bone of the deciduous second molar due to the erupting permanent first molar as age increased.
3. The palate projection areas of the front and back part of the deciduous dentition increased due to the lateral expansion of the palate due to the growth of maxillary bone as age increased.
4. The palate volumes of the front and back part of the deciduous dentition increased due to the lateral and vertical expansion of the palate as age increased.
5. As for the palate section areas, projection areas and volumes, those of boys were larger than those of girls in the deciduous dentition, but there was no significant.