• 대한치과기공학회지
• /
• 제35권3호
• /
• pp.231-242
• /
• 2013

Purpose: The study is to discover the relationship between malocclusion, which is known to cause temporomandibular disorder, and temporomandibular disorder and is aimed at college students who have retained their natural teeth. Methods: The study was aimed at 500 college students at two colleges located in Gyeongsangbuk-do and Daegu metropolitan city and survey research was conducted in order to discover any relationship between malocclusion and temporomandibular disorder. After excluding copies with insincere answers or errors out of the 500 copies of the questionnaire, the study used a total of 435 copies (87%) for research and analysis. Results: Females showed a prevalence of temporomandibular joint clicking and temporomandibular joint pain, and students who had crowding showed a high prevalence of temporomandibular joint pain, temporomandibular joint clicking, and trismus. Students whose occlusal condition was not good demonstrated a high prevalence of temporomandibular joint pain, temporomandibular joint clicking, and trismus. Students who had maxillary protrusion showed a prevalence of temporomandibular joint clicking and trimus, whereas students who had mandibular protrusion showed a high prevalence of temporomandibular joint clicking. Conclusion: Students whose dental condition was crowding and students whose occlusal condition was not good exhibited a high prevalence of three types of symptoms of temporomandibular disorder. Meanwhile student who had maxillary protrusion showed a high prevalence of temporomandibular joint clicking and trismus, while students who had mandibular protrusion showed a prevalence of temporomandibular joint clicking.

• 대한치과기공학회지
• /
• 제37권4호
• /
• pp.261-270
• /
• 2015

Purpose: This study is intended to survey male and female university students to see if there is correlation between temporomandibular disorder and oral habits known to cause temporomandibular disorder. Methods: A survey was conducted to 400 male and female university students attending two universities located in Daegu Metropolitan City and Gyeongsangbuk-do to examine if there is correlation between oral habits and temporomandibular disorder. Among total 400 questionnaire sheets, 334 (83.5%) sheets were used for final analysis except for those unreliably answered or containing error. Results: Female students showed a higher prevalence rate of temporomandibular joint pain than male students, and those having the habit of resting jaw on hand indicated a higher prevalence rate of temporomandibular joint pain, temporomandibular joint clicking, or trismus than normal students not having it. Also, those having the habit of tooth clenching showed a significantly higher prevalence rate of temporomandibular joint pain or temporomandibular joint clicking than normal students not having it. Conclusion: It can be concluded that the habit of resting jaw on hand is closely related with temporomandibular disorder like temporomandibular joint pain, temporomandibular joint clicking, or trismus, and the habit of tooth clenching is significantly correlated with such symptoms as temporomandibular joint pain and temporomandibular joint clicking.

• 대한치과기공학회지
• /
• 제36권3호
• /
• pp.187-196
• /
• 2014

Purpose: This study aims to examine correlation between temporomandibular disorder and oral habits that have been known to cause temporomandibular disorder with both male and female undergraduates. Methods: To figure out correlation between temporomandibular disorder and oral habits, a survey was conducted to 500 students of two universities located in Daegu Metropolitan City and Gyeongsangbuk-do, and excluding the ones unreliably answered or indicating errors, total 427 (85.4%) out of 500 questionnaire sheets were used for final analysis. Results: Female students showed higher prevalence rates than male students in temporomandibular joint pain and temporomandibular joint clicking, and students having the lip biting habit, tongue thrust habit, or bruxism habit indicated a higher prevalence rate of temporomandibular joint pain than normal students. Also, students having the tongue thrust habit indicated a significantly higher prevalence rate of temporomandibular joint clicking than normal students not having it. And about trismus, students having the bruxism habit showed a significantly higher prevalence rate than normal students not having it. Conclusion: The findings imply that oral habits like lip biting, tongue thrust, or bruxism are closely related with temporomandibular joint pain, tongue thrust influences temporomandibular joint clicking, and bruxism does affect trismus.

• Journal of Korean Dental Science
• /
• 제8권1호
• /
• pp.16-27
• /
• 2015

Purpose: The purpose of this study was to evaluate the correlation between the clinical symptoms of temporomandibular disorder and findings in the magnetic resonance imaging (MRI). Materials and Methods: Clinical data and MRI images were collected from a total of 240 German patients. Clinical symptoms were briefed as joint clicking, crepitus and pain. MRI findings were further defined according to the condyle position, condyle degeneration, disc positon, disc degeneration and the presence of osteophyte/sclerosis/synovitis. Hypermobility was separately recorded. Correlation analysis between parameters was performed. Result: Joint clicking had a positive correlation with unilateral disc degeneration, osteophyte, sclerosis and synovitis. Crepitus had a significant correlation with bilateral osteophyte. Pain was not correlated with any MRI findings except hypermobility. Conclusion: Selective correlations between the MRI findings and clinical symptoms were elucidated. The results of this study imply that condyle-disc deformities could be advanced without pain, and that joint clicking and crepitus could be clinical symptoms of condyle-disc degeneration.

• Journal of Oral Medicine and Pain
• /
• 제42권2호
• /
• pp.35-43
• /
• 2017

Purpose: This study aims to evaluate the correlation between joint sounds and radiographic bone change patterns along with clinical symptoms of temporomandibular joint osteoarthritis (TMJ OA) patients. Methods: The patients for this study were over 19 years of age, diagnosed tentatively with TMJ OA. The patients were examined with temporomandibular disorders analysis test and all three radiographs, including panoramic radiography, transcranial radiography, and cone beam computed tomography (CBCT). Information of the patients' age, pain status, joint sound and mouth opening range were collected. And bone change pattern was examined by reviewing panoramic radiography, transcranial radiography and CBCT images. Results: The patients with crepitus had a higher average active mouth opening (AMO) range than patients without crepitus, and the group with bilateral crepitus had a higher average AMO range than the group with unilateral crepitus (p<0.001). And the patient with pain during mastication was increased in the group with clicking than the group without clicking, and the group with bilateral clicking showed a statistically significant increase in the patient with pain during mastication than the group with unilateral clicking (p<0.05). The analytical results of the relevance of crepitus showed a high correlation with bone change observed from each of the three radiographs. And the agreement in bone change findings from 3 groups of paired radiographs showed high agreement (p<0.001). Meanwhile, 77.2% of CBCT findings showed bone change of condyle without crepitus (p<0.001). Conclusions: This study presented significant results in the evaluation of the correlation with crepitus and bone change of TMJ OA patients from panoramic radiography or transcranial projection. However, the accurate assessment is required through CBCT for the patient with complains of persistent pain, limitation of mouth opening, and occlusal change even if the crepitus does not exist.

• 한방안이비인후피부과학회지
• /
• 제17권2호
• /
• pp.99-105
• /
• 2004

Temporomandibular joint disorder is quite common dental problem. Research has shown that 5 to 15$\%$ of the population have a TMJ disorder requiring some type of treatment. TMJ disorder's symptoms are pains in the jaw and muscles of your face, limitation of opening or closing jaw and noises in jaw joint such as clicking or popping sounds. Two patients with TMJ symptoms visited our clinic. They complained pain, limitation of jaw opening and clicking sound. We treated them by stimulating trigger points on the TMJ muscle with acupuncture and had a good effects. The symptoms is reduced or disappeared.

• 치과방사선
• /
• 제23권1호
• /
• pp.7-14
• /
• 1993

The Internal derangement of temporomandibular joint disc was evaluated by using magnetic resonance imaging and arthrogram in 5 patients having reciprocal clicking or locking and in 5 normal subjects. Parasagittal multisections on both closed and open mouth were serially obtained by using a 1.5 Tesla MR system and surface coil with CSMEMP, MPGR. MR images obtained were analized by correlating with images of arthrograms. The obtained results were as follows: 1. Displaced meniscus was clearly delineated as dark structure on MR images other than on arthrograms of closed mouth view of patient having clicking or locking. 2. The deltoid white images of synovial fluid were identified in the glenoid fossa and on the posterior surface of condyle on open mouth view and partly depicted on closed mouth view, of parasagittal sections by MPGR. 3. The greyish image of joint fluid was identified on the posterior surface of condyle on the open mouth view of parasagittal sections by CSMEMP. 4. The structural relationship among condyle, meniscus, and fluid showed the variety of images on each parasagitta1 view.

• The Korean Journal of Pain
• /
• 제8권1호
• /
• pp.86-92
• /
• 1995

Temporomandibular disorders typically present findings of limited or asymmetric patterns of jaw opening and joint sounds usually described as clicking, popping, grating, or crepitus. Recently, patients with temporomandibular disorders have received an increasingly aggressive treatment with a greater emphasis on surgical and dental reconstruction. Scientific studies have not clearly identified the specific causes of the temporomandibular disorders and therefore some of the treatments are empiric, without a firm scientific foundation. We carried out a study on the patients of pain clinic OPD and concluded that the causes of the temporomandibular joint(TMJ) pain are the prolonged contraction of the muscles of mastication, especially the masseter muscle. Therefore, the spasmolytic treatment of masseter muscle would be a better treatment for TMJ syndrome rather than the surgical and dental reconstruction.

• 한국콘텐츠학회논문지
• /
• 제9권7호
• /
• pp.218-224
• /
• 2009

이 연구는 악안면외상경험과 측두하악장애 유병상태와의 관련성을 조사하여 측두하악장애의 예방과 치료계획에 도움을 주고자 울산광역시에 소재한 C보건대학 학생 370명을 대상으로 설문조사를 실시하였다. 수집된 자료는 SPSS 프로그램을 이용하여 분석하여 다음과 같은 결론을 얻었다. 1. 측두하악관절잡음 유병률은 남학생 25.7%, 여학생 22.7%로 남학생이 측두관절잡음 발생이 높았으나(p<0.01), 학년별로는 유의한 차이를 보이지 않았다. 2. 측두하악동통 유병률은 여학생이 높게 나타났다. 3. 개구장애 유병률은 여학생 10.8%, 남학생 7.0%로 여학생이 개구장애 발생이 약간 높게 나타났다. 4 측두하악장애로 인한 치료 경험은 남학생 6.5%, 여학생 4.3%로 남학생이 측두하악장애 치료경험률이 높게 나타났다(p<0.05). 5. 악 안연외상 경험률은 남학생이 높게 나타났으며(p<0.01), 악안면외상 경험 경로 중 넘어짐이 가장 많았으며, 운동, 기타 순으로 나타났다. 6. 악안면 외상과 측두하악장애와의 관련성은 악악면외상과 측두하악관절잡 음 간에 통계적으로 유의한 관련성을 보였다(p<0.01). 이상의 결과 악안면외상 경험유무와 측두하악장애 간에는 관련성이 존재하며 악안면외상을 측두하악장애 발생의 기여요인으로 볼 수 있겠다. 따라서 향후 측두하악장애를 일으키는 요인이 무엇인지 그 관련요인에 대한 추가연구가 필요하다고 사료된다.

• 치과방사선
• /
• 제18권1호
• /
• pp.67-73
• /
• 1988

This study was performed to clarify the mechanism of clicking sound and locking on temporomandibular joint and to determine the radiographic findings of them by using computed tomogram. Through the preliminary study with cadavers, the proper scanning condition and the correlatonship between the anatomy of cadaver and computed tomogram had been determined. The subjects were consisted of 10 controls and 16 patients having clicking sound or locking on temporomandibular joint. By using Hitachi-W500 as computed tomographic device, direct axial views and sagittal views reformed according to the changes in window setting and using the non-linear fraction were taken and analyzed by visual method and measuring the attenuation numbers. The obtained results were as follows: 1. The density of the anterior band of meniscus showed isodense to the surrounding muscles in normal. 2. In patient group, affected side showed increased radiopaque area anterior to condyle and underneath articular eminence as the feature of anteriorly displaced meniscus on axial and sagittal views. 3. In patient group, the condyle was rotated postero-laterally in affected side. 4. Non-linear fraction highlightened the feature of anteriorly displaced meniscus.