1983 Volume 8 Issue 3 Pages 163-175
In order to investigate the precise growth and development of the maxilla, mandible and dentition on the miniature swine. The serial plaster models which were taken every week from 6 males miniature swines from 6.5 month old to 36 month of age were used.
The result were as follows:
1. The length of maxilla increased markedly for the 6.5 to the 24 month, and subsequently it was on the decrease gradually from the 24th month to the 36th month and increasing was completed at this time. The growth value was compared between the ages of a 6.5 month and a 36 month. The growth rate had become 1.5 times.
2. The length of mandible favorably increased until 12 month. The enlargement was remarkably at the regions of the canine.
3. Upper second molar erupted after making the space in which the upper second molar would erupted. However at the lower second molar region, the basal alveolar process length tended to increase during this tooth eruption.
4. The growth center was located at the first premolar region.
