Korean J Orthod.
1982 Dec;12(2):155-164.
A longitudinal study on changes of bony and soft tissue of children in aged 7 through 9 years old
- Affiliations
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- 1Department of Dental Science, Yonsei University, Korea.
Abstract
- The purpose of this study was to investigate the changes of bony and soft tissue by the growth Each 50 boys and girls was studied aged 7 through 9 years old. The results were as follows;
1. Thickness of soft tissue was increased by the growth and much more done in boys than in girls.
2. In the linear measurement of soft tissue change of A-A' was most remakable.
3. Nose length was increased in both boys and grils. Remafkable change was observed in male aged 8 through 9 years old and in female gaed 7 through 8 years old.
4. In the linear measurement of bony tissue change, S-Pg, Go-Me, S-A, and S-N were increased in sequence.
5. Point-A and Pg in bony tissue grow aore downward direction than forward.
6. In the angular measurement, no significant change was obwerved.