순열구개열환자의 악관절 기능이상에 대한 임상적 연구
A clinical study of temporomandibular dysfunction in cleft lip and palate patients
소병수, 백진아, 시효근,
소속 상세정보
소병수 ( ) - 전북대학교
백진아 ( ) - 전북대학교
시효근 ( ) - 전북대학교
KMID : 0355619950210030475
Abstract
Most patients with a repaired cleft lip and palate show facial growth deficits that can present severe functional and esthetic problems. Temporomandibular dysfunction may occurred as a result of facial deformities and malocclusion in cleft lip
and
palate patients. The purpose of this study was to evaluate temporomandibular dysfunction in cleft patients and the difference to normal individuals.
This study was based on 30 cleft patient subjects and 30 normal subjects with Angle's class I occlusion. We examined maximum mouth opening, signs and symptoms of temporomandibular dysfunction, and craniomandibular index(CMI) in these patients and
compared them with control subjects.
@ES From this study, the following conclusions may be drawn.
@EN 1. The Mean Maximum Mouth Opening in cleft patient subjects was 46.3±5.1 mm and in control subjects, 47.5±5.6mm. There was no significant differencein mean maximum mouth opening between the two subjects.(p<0.05).
2. The most common signs and symptoms of temporomandibular dysfunction in cleft patient subjects are TMJ noise and abnormal mandibular movement.
3. The Mean values of Dysfunction Index(DI), Palpational Index(PI),and Cranioman dibular Index(CMI) were 0.13±0.11, 0.02±0.04, and 0.08±0.06 in cleft patient subjects and in control subjects, 0.05±0.06, 0.01±0.03, and 0.03±0.04.
4. There were statistically significant differences in Mean values of DI and CMI between cleft patients and control subjects.(p<0.05)
5. The Craniomandibular Index observed in cleft patient subjects was higher than that in control subjects.
가토에서동결 동종신경 이식후 신경 재새에 관한 실험적 연구
@TE Evaluation of peripheral nerve regeneration with a frozen nerve allograft in rabbits
@AU 여환호, 송형근, 김영균, 이효빈 이정훈
@PG 483
@EN In this study, nerve regeneration across frozen allograft was assessed using clinical, electrophysiological and histological parameters. Sixteen adult rabbits were used and divided into 3 groups. In group 1 with 10 animals, a 10 millimeter
length of
the buccal branch of the facial nerve was exposed and transected at the mid portion of face under standard sterile operating room conditions. The defect was repaired with a 10mm frozen allogenic nerve under an operating microscope(Wild Leitz Co.,
Wild
M715) which was procured from the sciatic nerve of four other rabbits of group 2, and then frozen with liquid nitrogen for 6 weeks. The ten rabbits were divided into 1, 2, 4, 8, and 12-week experimental groups. Each group had 2 animals. In group
3
with
two animals, a sham operation was performed and they were used as the control group. Animals were observed twice a week, and given electrophysiologic and histologic examinations.
@ES The results were as follows
@EN 1. On clinical observation, ther was little inflammatory sign at the grafted area, and no muscular atrophy at the orbicularis oris muscle area.
2. In electrophysiologic studies of the 1, 2, 4-week experimental groups, threshold, delay and nerve conduction velocity didn't appear.
3. In electrophysiologic studies of the 8, 12-week experimental groups, threshold, delay and nerve conduction velocity were recorded, but there was a statistically significant difference in the threshold between the control group and the 8,
12-week
experimental group(p<0.05).
4. There was a statistically significant difference in the delay between the control group and the 8-week experimental group(p<0.001).
5. There was a statistically significant difference in the nerve conduction velocity between the control group and experimental groups(p<0.01).
6. In histologic studies of the 1, 2, 4-week experimental group, no nerve regeneration could be observed.
7. In histologic studies of the 8, 12-week experimental group nerve regeneration could be seen, but nerve regeneration in the 12-week experimental group was greater than in the 8-week experimental group.
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