A study of condylar growth change with implants in individuals aged from 7.5 to 15.5
- VernacularTitle:以种植体法研究7.5～15.5岁个体髁突的生长变化
- Author:
Yan GU
- Publication Type:Journal Article
- Keywords:
Condyle;
Implant;
Growth
- From:
Journal of Practical Stomatology
2001;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To annually quantify the condylar growth from 7.5 to 15.5 years and identify the growth direction of condyle during the same period of time.Methods: The sample was obtained from Mathew's implant study with longitudinal cephalometric records of 13 untreated Class I subjects (8 Females, 5 Males). The cephalograms were taken annually from 7.5 to 15.5 years old. Reference lines were constructed based on three implants in mandibular corpus and linear and angular measurements performed. Results:It was found that the greatest amount of bone apposition at points of condylion and superior condylion occurred during the ages of 11.5 years to 12.5 years with the average value of (3.61?2.58) mm and (3.28?2.17) mm, respectively. The largest amount of bone addition at point of posterior condylion occurred much earlier between 8.5-9.5 years old, with average value of (1.92?1.16) mm. CRO angle was constantly decreased during the observation period. Conclusions:The current findings suggest that the condyle grows in forward and upward direction.
