Korean J Orthod.
1987 Mar;17(1):73-83.
A longitudindal study of growth change on the mandibular symphysis and lower incisors
- Affiliations
-
- 1Department of Orthodontics, Division of Dentistry Kyung Hee University, Korea.
Abstract
- The purpose of this longitudinal study was to examine the growth changes of mandibular symphysis and lower incisors with age. The material was 294 lateral cephalometric radiographs taken longitudinally from 6 to 13 year old children, who were not teated orthodontically. The following conclusions seem to be warranted. 1. The sex difference of the measurements of mandibular symphysis and lower incisors were not statistically significant. 2. There were growth increments (2.69mm in boys and 2.08mm in girls) in the total thickness of mandibular symphysis. 3. There were a great change and individual variations on the curvature of anterior border of mandibular symphysis. 4. The chin angle had a tendency to decrease progressively in both sexes. 5. There were growth increments (8.23mm in boys and 7.40mm in girls) in the anterior dental height. 6. The lower anterior teeth tended to incline labially with age.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Morphology of mandibular symphysis and positioning of lower incisors in the skeletal Class III malocclusions
- A study on the relationship of the mandibular symphysis and anterior alveolar and skeletal morphology according to the rotational growth pattern of mandible in skeletal Class III malocclusion
- Changes of symphysis morphology after chincup treatment
- Correlation between degree of gingival curvature and gingival recession in orthognathic surgery patients
- A radiological study on the morphology of labial alveolar bone in the mandibular incisor area of mandibular prognathism patients
