• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.19 no.2
• /
• pp.130-134
• /
• 1997

The sagittal split ramus osteotomy(SSRO) of the mandible has used one of the most popula methods for the correction of various dentofacial deformities, especially mandibular prognathism. In SSRO, there are produced bony gap following mandible setback because of mandibular flaring. For this reason, the condylar axis may be changed due to bony approximation both segment in three dimension more mesio-laterally. According to change of condylar position, the condition of TMJ structure are changed and change of TMJ symptoms are suggested theoretically, and the correction of malocclusion by SSRO may improve the TMJ symptoms by improvement of feeding difficulties. The pupose of this study was to determine relationship between expected alterations in condylar position and suggested TMJ symptoms produced by change of condylar position. TMJ symptoms of 15patients who had operated SSRO are checked at about postoperative 6 month ranging $5{\sim}11$ month. Anterior-posterior position of condyle which was comparison preoperative with postoperative position, was classified 5 groups. The author tried to identify relationship between positional change of condyle and TMJ discomfort.

• Journal of Yeungnam Medical Science
• /
• v.12 no.1
• /
• pp.141-148
• /
• 1995

The Magnetic resonance imaging has been used widely to evaluate the disk position without any interruption of the TMJ structures, and the dynamic MRI presenting computed serial imaging or the video-recorded simulation images is thought to be very effective to evaluate the disk position under function. This is to study the correlation between the clinical diagnosis and the findings of dynamic MRI for diagnosis of internal derangement of the 7 patients were examined clinically, and the movement of TMJ meniscus was reviewed in the dynamic MRI. MRI was very reliable to diagnose the amount of anterior displacement of articular disc, the structural abnormality of temporomandibular joint, the cause of functional limitation, and to differentiate the muscle related pain & dysfunction.

• Journal of Oral Medicine and Pain
• /
• v.32 no.1
• /
• pp.91-104
• /
• 2007

An epidemiologic investigation was carried out to determine the prevalence of symptoms of temporomandibular disorders in college students that aged 19-31 years. 460 students were investigated with a questionnaire from September to December 2006. The obtained results were as follows : 1. The prevalence of symptoms of temporomandibular disorders was 80.6%. 2. The most frequently complained symptom was headache and joint sound was the next one without distinct difference between men and women. 3. While the rate of occurrence of symptom of acute malocclusion decreased with age in men, that of TMJ pain during chewing or speech increased with age in women. 4. Symptoms including TMJ pain during mouth opening, chewing or speech, TMJ fatigue and acute malocclusion occurred significantly more frequently in women than in men. Contributing factors including resting cheeks on hands, stressful state, gum chewing, insomnia and clenching occurred significantly more frequently in women than in men. 5. There was a highly significant relationship between symptoms and contributing factors including resting cheeks on hands, stressful state, unilateral chewing, insomnia and clenching. 6. There was a highly significant relationship between symptoms and general personality.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.17 no.2
• /
• pp.125-135
• /
• 2001

교합조정이나 대부분의 보철치료는 비가역적이어서 명확한 치료 계획이 없이는 섣불리 치료를 시작하지 말아야 한다. 명확한 치료 계획을 위해서는 증상의 원인 인자를 파악해야 하나, 때때로 그 원인이 불분명하여 환자에게 무어라 설명해야 할지 난감한 경우가 많은 것이 바로 이 분야이다. 교합 재구성을 함에 있어서 생체 역학과 근육의 활동량을 고려해야 하는 것은 이미 주지하고 있는 바이다. 즉, 악관절이나 치아에 대한 하중을 조절함으로써 근조직의 안정을 도모하여 적정한 하악위와 원활한 하악운동을 획득하는 것이 교합 재구성의 큰 목적 중 하나이다.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.11 no.2
• /
• pp.87-95
• /
• 1989

The therapeutic methods and follow - up prognosis of subcondylar fractures in adults have always been sources of controversy. To improve the therepeutic results in subcondylar fractures with displacement, and especially, the bicondylar ones, the auther employ the surgical reduction using of sagittal split and oblique subcondylar osteotomy. This report is illustrated by six clinical cases.

• Journal of TMJ Balancing Medicine
• /
• v.4 no.1
• /
• pp.21-26
• /
• 2014

Therapeutic effect of Yinyang Balancing Appliance of functional cerebrospinal therapy (FCST) for meridian and neurologic yinyang balance was observed in recurrent or habitual type temporomandibular joint (TMJ) dislocation. One Recurrent or habitual type TMJ dislocation case was managed with the Yinyang Balancing Appliance on TMJ, combined with acupuncture. Clinical outcome measurement was based on subjective measures and clinical observations. The patient showed positive changes even after the initial treatment and this effect maintained over the follow-up period. Although it is not clear the effect is sustaining or temporary in its nature, a positive effect was observed and further clinical and biological research on FCST is expected.

• Journal of Dental Rehabilitation and Applied Science
• /
• v.17 no.3
• /
• pp.189-193
• /
• 2001

교합조정은 비가역적인 술식이므로 예방적인 목적으로 사용하는 것은 바람직하지 않으며 환자가 증상을 호소하거나 환자의 구강검사시 교합간섭으로 인한 증상이 확인된 경우라도 자연치에서의 교합조정술은 반드시 신중을 기해야 한다. 교합조정술을 시행하기 전에 먼저 하악의 위치가 안정되어야 한다는 것을 명심하고 이를 위해 치과의사는 하악의 중심위에 대한 이해와 중심위로의 하악유도 방법에 대한 숙지도 필요하다. 또한 심한 악관절 장애나 통증 및 불안정한 하악의 위치를 보이는 경우 구강내 교합상이나 교합 안정장치가 선행되어야 하는 경우가 있다. 교합조정술을 시행해야 하는 치과의사 자신이 교합조정술에 대한 지식을 충분히 습득하고 있어야 하며, 교합조정술의 적응증을 분명하게 확인한 뒤 조심스럽고 정확하게 시술을 시행해야 한다. 즉, 잘못된 교합조정으로 오히려 교합간섭을 야기할 수도 있음을 명심해야 한다. 그러나 교합조정에 대해 올바로 이해하고 일반적인 교합조정의 원칙을 지켜 정확히 시행한다면 교합조정은 결코 환자에게 해를 주지 않고, 자유로운 하악운동을 가능케 하며, 교합의 안정성을 유지해 줄 것이다.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.42 no.3
• /
• pp.242-248
• /
• 2015

Maximum mouth opening is regarded as an important tool used to evaluate the clinical function of temporomandibular joint and the masticatory system. It has been reported that children can also exhibit severe dysfunction or pain in some cases of temporomandibular disorder. The purpose of this study was to measure the normal maximum mouth opening in Korean children and to analyze the correlations between mouth opening and the associated factors. Maximum mouth opening was measured from 151 healthy children between the ages of 2 and 6 years old. Age, height, weight, and mouth width were also recorded. As a result, the mean maximum mouth-opening was $37.72{\pm}5.10mm$. While the values were greater in boys than in girls without statistical significance, the increases of maximum mouth opening based on age, height, weight, and mouth width were significant (p < 0.05). In children, positive correlation coefficients were observed between maximum mouth opening and the associated factors and height showed the highest correlation. In conclusion, we collected data of the normal range of maximum mouth opening in Korean children, and this study can be utilized as a basis in diagnosing pediatric temporomandibular disorder and safety standard of mouth opening during dental procedures.

• Journal of Oral Medicine and Pain
• /
• v.19 no.2
• /
• pp.111-123
• /
• 1994

저자는 1990년부터 1993년 사이에 부산대학병원 구강내과에 내원하여 두 개하악장애로 진단되어 보존적 치료를 시행받은 884명의 환자를 대상으로 Solberg의 악관절장애조사 설문지를 작성케한 후, 성, 연령, 병력기간, 진단명, SCL-90-R, 치료에 대한 반응에 따라 환자군을 세분하여 각 환자군의 설문지 문항별 응답양태 및 이에 따른 예후예측을 분석한 바 다음과 같은 결론을 얻었다. 1. 악기능 및 예후악화요인 문항에서는 여성이 높은 응답수를 보인 반면, 기여요인 및 습관문항에 서는 남성이 높은 응답수를 나타내었다. 2. 고령층의 환자에서 행동 및 예후악화요인이 두드러졌다. 3. 만성군이 급성군에 비해 전 문항에서 높은 응답수를 나타내었다. 4. 혼합군 및 근육장애혼자가 관절장애환자에 비해 설문지 전 문항에서 많은 응답을 하였다. 5. SCL-90-R에서 비정상인 환자가 정상군의 환자에 비해 악기능을 제외한 전 문항에서 높은 응답수를 보였다. 6. 치료에 무반응인 환자가 성공한 환자에 비해 습관요인 문항을 제외한 설문지 전체에서 많은 응답을 하였다.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.20 no.3
• /
• pp.191-200
• /
• 1998

This study was intended to perform the influence of condyle positional change after surgical correction of skeletal Class III malocclusion after orthognathic surgery in 37 patients(male 13, female 24) using computed tomogram that were taken in centric occlusion before, immediate after, and long term after surgery and lateral cephalogram that were taken in centric occlusion before, 7 days within the period of intermaxillary fixation, at the 24 hours later removing intermaxillary fixation and long term after surgery. 1. Mean intercondylar distance was $84.42{\pm}5.30mm$ and horizontal long axis of condylar angle was $12.79{\pm}4.92^{\circ}$ on the right, $13.53{\pm}5.56^{\circ}$ on the left side. Condylar lateral poles were located about 12mm and medial poles about 7mm away from the reference line(AA') on the axial tomogram. Mean intercondylar distance was $83.15{\pm}4.62mm$ and vertical axis angle of condylar angle was $76.28{\pm}428^{\circ}$ on the right, $78.30{\pm}3.79^{\circ}$ on the left. 2. In amount of set back, We found the condylar change(T2C-T1C) which had increasing tendency in group III (amount of setback : 10-15mm). but there was no statistical significance(p>0.05). 3. There was some correlation between condylar change(T2C-T1C) and TMJ dysfunction. It seemed that postoperative condylar change had influenced postoperative TMJ dysfunction, through there was no statistical significance (p>0.05). As we have observed the change of condylar axis in the group that complained of TMJ dysfunction in cases of large amount of mandibular setback. So we consider that the more trying to conserve condylar position will decrease occurrence rate of post operational TMJ dysfunction.