STUDY ON THE IMPROVEMENT OF THE CRANIOMANDIBULAR INDEX IN THE ASSESSMENT OF CRANIOMANDIBULAR DISORDERS

Song, Yun-Heon,Kim, Ki-Suk 대한두개하악장애학회 1995 대한두개하악장애학회지 Vol.7 No.2

악관절장애환자의 임상 평가를 위해서 고안된 여러지수중 현재 가장 널리 사용되고 있는 두개하악장애지수와 평가방법을 새로 고안한 변형두개하악장애지수, 혼합두개하악장애지수를 비교하여 환자의 증상변화를 민감하게 감지하는 능력을 알아보고자 본 연구를 시행하였다. 두개하악장애지수의 기준에 따라 단국대학교 치과병원 구강내과에 내원한 악관절장애환자 20명을 대상으로 임상검사를 시행하여 두개하악장애지수, 변형두개하악장애지수, 혼합두개하악장애지추를 산출하였다. 치료전, 치료후 2주, 치료후 4주에 수집된 결과를 각 지수간에 비교분석하여 다음과 같은 결과를 얻었다. 악관절장애환자의 증상평가에서 변형두개하악장애지수가 환자의 중상변화를 가장 민감하게 감지하는 것으로 나타났다(p<0.05). 따라서 사용된 세가지 지수중 변형두개하악장애지수가 악관절장애환자의 경과를 관찰할때 증상변화를 관찰하기 위한 가장 효과적인 방법이라고 사료된다.

STUDY ON THE DENTAL ATTRITION OF THE PATIENTS WITH CRANIOMANDIBULAR DISORDERS USING AGE ESTIMATION

Lee, Se-Yong,Kim, Ki-Suk 대한두개하악장애학회 1995 대한두개하악장애학회지 Vol.7 No.2

두개하악장애는 저작근, 측두하악관절 및 그와 관련된 구조물의 많은 임상적인 문제를 포함하는 포괄적인 용어이다. 두개하악장애의 원인은 다양하고 종종 다인성이며 위험을 증가시키는 여러가지 소인들이 존재한다. 이갈이나 이악물기 같은 이상기능습관은 흔하며 또한 임상적으로 많은 관련이 있는 것으로 사료된다. 그러나 이전의 연구에서는 연령증가에 따른 기능적 마모를 고려한 치아교모에 관한 연구가 시행되지 않고 단순한 교모포의 평가비교만이 시행되었다. 본 연구는 법치의학적 연령감정에서 널리 사용되고 있는 치아교모도를 이용한 연령감정법을 이용하여 두개하악장애환자의 치아교모도에 관한 연구를 시행하였다. 연령은 기능적마모에 따른 정도를 평가하기 위해서 고려되었다. 단국대학교 치과병원 구강내과에서 두개하악장애로 진단된 환자 18명과 대조군으로 외래환자 14명을 대상으로 하였다. 연령차는 연령감정범의 추정연령과 환자의 실제나이의 차이를 구해서 비교분석하였다. 이상의 결과로 두개하악장애환자의 중절치, 측절치, 제1소구치, 제2소구치의 치아교모도가 정상군보다 유의성 있게 높았다.

성장 중인 가토에서 하악두 상부절제술이 하악골 성장에 미치는 영향에 관한 실험적 연구

최경일,김종원 대한두개하악장애학회 1991 대한두개하악장애학회지 Vol.3 No.1

The purpose of this experiment was to study effect of loss of condylar chondroid tissue to growth and development. The experimental materials were 20 rabbit aging 4 weeks and weighing about 900g. Both control and experimental group were devided as 1 week, 2 weeks, 4 weeks, 6 weeks and 8 weeks and each week groups consisted of 2 rabbits. The high condylar shaving in the left temporomandibular joint were performed. Every specimen was made by midsagittal section of the skull and taken soft x-ray radiogram by standardization. Measuerments 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 operation site was gradually taken healing process and healing was completely in 8 weeks by chondroid tissue. 3. The author concluded that high condylar shaving in growing individuals have no effect to growth and development.

긴장성 두통(Tension-type headache )

정성창 대한두개하악장애학회 1993 대한두개하악장애학회지 Vol.5 No.1

하악전돌증 환자의 하악운동에 관한 연구

김기숙,김광남 대한두개하악장애학회 1991 대한두개하악장애학회지 Vol.3 No.1

It is important to harmonize the occlusion with TMJ and neuromuscular system. However, clinically, how to harmonize is very difficult. The mandibular movement is the motion in which all component part of stomatognathic system participate. This study was performed to compare mandibular movement of mandibular prognathic patients group with that of normal group, to ascertain which components of mandibular movement have differences between two groups, and to use for occlusal treatment of mandibular movement. Thirteen adult who have physiologically normal occlusion and are free of TMJ dysfunction were selected as a control group(Group l). Eight adult who are mandibular prognathic patient and have more than four anterior teeth crossbite, therefore have not anterior guidance function and have posterior interference at protrusion were selected as a experimental group(Group 2). Electronic pantograph, Denar Pantronic (Denar Corp., U.S.A.), was used to record mandibular movement. Pantronic survey was performed by using an arbitrary hinge axis according to manufacturer's direction. Of the Pantronic recordings, immediate side shift (ISS), progressive side shift (PSS), orbiting condylar path (ORB), protrusive condylar path (PRO) between two groups were compared and analysed. The results were as follows: 1. The average protrusive and orbiting condylar inclination of mandibular prognathic patient(28.44˚, 36.94˚) was significantly lower than those of normal group(40.15˚, 48.00˚) (P<0.01). 2. There was no statistically significant difference between the average immediate and progressive side shift of mandibular prognathic patient (0.37㎜, 6.19˚)and those of normal group(0.52㎜, 5.96˚) (P>0.0l). 3. The significant correlation was found between orbiting condylar inclination and protrusive condylar inclination.

경쟁심리가 급성 냉통증 반응에 미치는 영향

김병국,기우천 대한두개하악장애학회 1995 대한두개하악장애학회지 Vol.7 No.2

One of the most common symptoms in dental clinic is pain. The pain behavior is very variable because it is subjective and influenced by many factors such as sex, age, race, religion, etc. The purpose of this study is to evaluate effect of the competition on pain threshold and pain tolerance. A sample consisted of 55 individuals (24 males, 31 females) ranged from 23 to 32 years old. In the first session, the subjects were requested to place their each nondominant and dominant hand in ice water(0-2℃) and to raise the other hand when they feel the first pain and to leave it there until the pain reached an intolerable level. After 1 week, subjects were fully informed the purpose of this study which sex can endure the pain longer. We compared the first and the second session of the cold pressor pain threshold and tolerance time. The obtained Results were as follows ; 1. Cold pain threshold was not significantly different between sex and hand group. 2. In male's dominant hand group, cold pain tolerance time was significantly longer after competition. 3. In the dominant hand group, cold pain tolerance time of the male was significantly longer than females after competition. This study showed that competition can change the cold pain tolerance.

THE EFFECT OF PERSONALITY ON THE PAIN BEHAVIOR

Kim, Byung-Gook,Kee, Woo-Cheon 대한두개하악장애학회 1995 대한두개하악장애학회지 Vol.7 No.2

심리적 영향이 동통 내성에 미치는 영향을 조사하고자 전남대학교 치과대학에 재학 중인 3, 4학년 70명 을 대상으로 cold pressor test를 실시하고 pain tolerance를 측정한 후 이를 고동통 내성군과 저동통 내성군으로 분류해 각각 MMPI를 시행하였다. MMPI 결과를 분석한 후 각 항목당 T score가 60점 이상인 비율을 계산하고 양 군을 비교하여 다음과 같은 결과를 얻었다. 1. T>60 이상인 경우 고동통 내성군은 척도 4, 6, 7, 8, 0이 높은 분포를 나타내었다. 2. T>60 이상인 경우 저동통 내성군은 척도 2, 3이 높은 분포를 나타내었다. 3. 척도 4, 9의 상승 효과는 고동통 내성군에서 높은 분포를 나타내었다.

악관절 내장증의 임상 및 방사선학적 연구

한원정,김은경,김기석 대한두개하악장애학회 1992 대한두개하악장애학회지 Vol.4 No.1

Internal derangement of the temporomandibular joint can be defined as an abnormal relationships of the meniscus relative to the mandibular condyle, articular fossa and eminence. This may cause variable mandibular dysfunctions and pain. For diagnosis, arthrography, computed tomography and magnetic resonance imaging are used. In this study, the authors reviewed 98 TMJs of 88 patients who were diagnosed as internal derangement through inferior joint space arthrography at the department of Oral & Maxillofacial Radiology, Dental Hospital, Dankook University through 1986 to 1992. 98 TMJs consisting of 30 disc displacement with reduction, 48 disc displacement without reduction and 20 perforation were studied about clinical and radiological findings. The results were as follows : 1. Internal derangement was found most frequently in the 2nd and 3rd decades and the average age of perforation was higher than that of disc displacement with reduction. The sexual predilection was 2 times higher in females. 2. The most frequent chief complaints were TMJ sound in displacement with reduction, pain and limitation of mouth opening in disc displacement without reduction and pain in perforation. The duration of the chief complaints was longer in disc displacement with reduction than in preforation and disc displcement without reduction. 3. Reciprocal click was the most frequently TMJ sound in disc displacement with reduction. History of joint sound in disc displacement without reduction and crepitus in perforation was the most frequent one. 4. The average maximum opening was 45.4mm in disc displacement with reduction, 31.4㎜ in disc displacement without reduction and 33.8mm in perforation. 5. In the centric occlusion, posterior condylar position was the most frequent in disc displacement with reduction, posterior and concentric condylar position was frequent in disc displcement without reduction, concentric and anterior condylar position in perforation. At 1 inch opening, the same position to articular eminence was most frequently found in disc displacement with reduction, posterior position in disc displacement without reduction, posterior and anterior position in perforation was frequently found. 6. Bony changes, especially sclerosis and flattening, was most frequently found in perforation.

근육성 치통의 증례 및 고찰

이원유 대한두개하악장애학회 1993 대한두개하악장애학회지 Vol.5 No.1

치통의 특별한 치성 원인을 발견할 수 없을 때나 또는 원인 불명성 또는 비정상적인 안면통은 여러 가지의 원인을 고려하는 것이 필요하다. 근육성 치통은 비치성 원인 치통의 하나로서 가장 빈발하는 것 중 하나이다. 따라서 원인 불명인 경우 invasive 치료 즉 발치 또는 근관치료 등의 치료를 바로 시도하는 것보다 원인을 먼저 규명하는 것이 바람직하다. 근육성 치통을 유발하는 것은 저작계와 관련된 교근, 측두근, 악이복근, 내측익돌근들의 유발점들이다. 근막유발점 동통은 치통 뿐 아니라 두통, 안면통증, 이상감각, 통각과민, 체액분비, 어지러움, 이명, 등을 유발한다. 따라서 치료는 유발점들을 파괴하고 제거하며 기여요인을 제거하는 것이다. 또한 근육의 dysfunction을 유발하는 pain cycle 의 차단함으로 통증의 지속을 막는 것과 행동수정에 역점을 두어야 할 것이다.

기니아픽 교근의 기계적 성질과 등장성 ATP분해 효소 활성을 변화시키는 수직고경의 증가

백철호 대한두개하악장애학회 1995 대한두개하악장애학회지 Vol.7 No.2

To study the changes in mechanical and metabolic properties associated with an increase in the vertical dimension of the face, isometric tension, isometric ATPase activity, unloaded shortening velocity (V_max), and the tension transients in response to step stretches in length were measured at constant levels of various Ca^2+ activations in glycerinated masseter muscles (75 to 150㎛ in diameter and about 3㎜ long) from normal and bite opened (6㎜ increase in the vertical dimension, period of 1 week) guinea pigs. The ATPase activity changed almost in parallel with the tension (i.e., Ca^2+ concentration) in both preparations. However, the tension cost (ATPase activity/tension) was significantly(p<0.05) lower in the bite opened preparation, compared with the control. The V_max at the saturating Ca^2+ concentration was lower in the bite opened preparations. The tension transients in response to step stretch in length were characterized by four distinct phases; the first phase of an immediate tension increase coincident with the stretch, the second phase of a rapid quasi-exponential tension reduction, the third phase of a minute tension increase and the fourth phase of a slow tension reduction. The time constant of the second phase (denoted by t_63%), which is believed to reflect kinetics of turnover rate of crossbridges, was 4.7 msec in control and 11.0 msec in the bite opened preparations. These results suggest that the increase in the vertical dimension for 1-week decreases the Ca^2+ sensitivity in the isometric tension development ans alters the dynamic mechanical properties of masseter muscle so as to decrease the tension cost by decreasing the cycling rate of crossbridges. The economical ATP consumption in the bite opened preparation may partly contribute to the relief of muscle spasm with an increase in the vertical dimension. (This paper is the Korean translation of AM J ORTHOD DENTOFAC ORTHOP 1993;104:484-91.)