성장 중인 가토에서 기능적 하악운동이 골절된 하악두의 치유과정에 미치는 영향에 관한 실험적 연구

Experimental study on the effect of functional jaw movement to fractured condyle in growing rabbit

The purpose of this experiment was to study effect of fuctional jaw movement to fractured condyle in growing individuals. The experimental materials were 20 rabbit aging 4weeks and weighting about 900g. Both control and experimental group were devided as 1week, 1weeks, 4weeks, 6weeks and 8weeks and each week groups consisted of 2 rabbits. The condyle neck fracture in the left temporomandibular joint was performed by fissure bur via preauicular approach. Every specimen was made by midsagittal section of the skull and taken soft x-ray radiogram by standardization. Measurements were measured after tracing of x-ray. The temporomandibular joint and their surrounding tissues were obtain to microscopic specimens stained with Hematoxilin-Eosin method. The results as follows. 1. The change of weight and measurements through the time follow, was simillar pattern in both control and experimental group as well as both side of experimental group. 2. The fracture site was gradually taken healing process and healing was completely in 8weeks. 3. The author concluded that the results were proven to be accepted clinical application of functional jaw movement in condylar fracture which was occured in growing individuals.