• Title, Summary, Keyword: Temporomandibular joint

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A Study on Correlation between the Prevalence Rate of Temporomandibular Disorder and Oral Habits (측두하악장애 유병률과 구강관련 악습관과의 연관성에 관한 연구)

  • Kim, Hong-Sik
    • The Journal of Korean Academy of Dental Technology
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    • v.37 no.4
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    • pp.261-270
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    • 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.

A Study on the Relationship between Malocclusion and the Prevalence of Temporomandibular Disorder (부정교합과 측두하악장애 유병상태와의 관련성에 관한 연구)

  • Kim, Hong-Sik;Park, Soo-Chul;Jung, Myung-Hee
    • The Journal of Korean Academy of Dental Technology
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    • v.35 no.3
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    • pp.231-242
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    • 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.

The relationship between Oral Habits and the Prevalent Status of Temporomandibular Disorders (구강악습관과 측두하악장애 유병상태와의 관련성)

  • Kim, Hong-Sik
    • The Journal of Korean Academy of Dental Technology
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    • v.36 no.3
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    • pp.187-196
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    • 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.

The meaning of Temporomandibular Joint Day Inauguration and the Role of Dentists (턱관절의 날 제정 의의와 치과의사의 역할)

  • Lee, Sang-Goo
    • The journal of the Korean dental association
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    • v.58 no.6
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    • pp.347-353
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    • 2020
  • The Korean Academy of Orofacial Pain and Oral Medicine inaugurated Temporomandibular Joint Day in November 9th, 2018 and aimed to emphasize the importance of the temporomandibular joint in maintaining overall orofacial health and celebrates the benefits of proper treatment of its related disorders including temporomandibular disorders to raise awareness of the public on significant temporomandibular joint-related conditions. Three essential statements were made on this memorable day as below: 1) Dentists of Korea are responsible of maintaining a healthy status of the temporomandibular joint of the people. 2) Dentists of Korea strive for the research and management of temporomandibular joint related conditions 3) November 9th is annually celebrated as the Temporomandibular Joint Day in Korea.

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Influence of life stress on Temporomandibular joint disorders in undergraduate students (대학생의 생활 스트레스가 측두하악관절 장애에 미치는 영향)

  • Kwon, Soon Suk;Lee, Hye-Eun
    • The Journal of Korean Academy of Dental Technology
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    • v.39 no.3
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    • pp.187-196
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    • 2017
  • Purpose: The purpose of this study was to investigate the factors contributing to temporomandibular joint disorder symptoms. Methods: The survey was conducted from May 1 to June 10 2017 against college students(120 males and 123 females) in Daejeon and Gangwon who understood the purpose of this study and agreed to participate. Results: First, The most frequent symptom of temporomandibular joint disorders is noises from the joint (male 45%, female 61.8%), followed by headache or neck pain (male 25.8%, female 52.8%). There was shown a significant difference by gender in all items except for jaw dropping, poor alignment of teeth and trauma(p<0.05). Second, Looking into the correlation between stress and subjective symptoms of Temporomandibular joint disorders, The stress of Temporomandibular joint disorders showed more significant relation with realistic issues such as academic task, economic burden (e.g., treatment cost), future career, and life values rather than aspect of social relationship(p<0.01). Conclusion: As a result of analyzing variables to understand the influence of stress on temporomandibular joint disorders, the accumulated number of bad habits, stress and temporomandibular joint disorders showed a significantly positive correlation with one another (p<0.05). In other words, the higher the stress level the severe the temporomandibular joint disorders; the more the bad habits the severe the temporomandibular joint disorders;

Consideration from the Viewpoint of Chiropractic Correction on the Dysfunction of Temporomandibular Joint

  • Kong, Byung Sun
    • Journal of International Academy of Physical Therapy Research
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    • v.4 no.2
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    • pp.625-632
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    • 2013
  • This study was to investigate the needs of the functional abnormality of the Temporomandibular joint. The purpose of this study was to find out basic concept for the Chiropractic-care necessity of the neuromuscular skeletal patients with functional abnormality of the temporomandibular joint. I evaluated the change of the range of motion, neck pain, headache by post xray, orthopedic test and patient's charts. The range of motion at temporomandibular joint was improved and the necessity of chiropractic care was recognized in the neuromuscular skeletal patients with having temporomandibular joint problems.

Factors affecting subjective symptoms of temporomandibular joint disorders in adults (성인의 턱관절장애 자각증상에 영향을 미치는 요인)

  • Kim, Soo-Kyung;Kim, So-Ra;Kim, Hyun-Kyung;Park, Ji-Su;Lee, Yu-Jin;Cho, Min-Seo;Jung, Eun-Seo
    • Journal of Korean society of Dental Hygiene
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    • v.17 no.4
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    • pp.601-611
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    • 2017
  • Objectives: The purpose of this study is to identify the perceived symptoms of oral and temporomandibular joint disorders in adults and to analyze the factors affecting subjective symptoms of temporomandibular joint disorders. Methods: 249 adults over 20 years old who had subjective symptoms of temporomandibular joint disorders were surveyed and analyzed. Independent t-test and ANOVA test were used to examine the relationship between oral habits and temporomandibular joint disorder according to general characteristics. $Scheff{\acute{e}}$ test was used for post-hoc analysis. Multiple regression analysis was conducted to examine the factors affecting oral habits and temporomandibular joint disorder. Results: First, the factors affecting oral and habitual behaviors were married (p<0.05) and monthly income between 1 million~1.9 million won (p<0.001), higher temporomandibular joint disorder (p<0.01) And the degree of habit was increased. Second, the factors affecting temporomandibular joint disorder were increased in occupation (p<0.05) and the degree of oral habit (p<0.01). Conclusions: In conclusion, it was confirmed that oral habit influences temporomandibular joint disorder. Especially, it is suggested that prevention and promotion of temporomandibular joint disorder are needed to recognize the removal of oral habits.

A Relationship between the Joint Effusion and the Presence of Pain and Disc Displacement In the Temporomandibular Joint (자기공명영상에서 관찰되는 측두하악관절의 관절강내 삼출과 동통 및 관절원판 변위와의 관계)

  • Ryu, Sang-Soo;Kee, Woo-Cheon;Chol, Jae-Kap
    • Journal of Oral Medicine and Pain
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    • v.25 no.1
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    • pp.63-71
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    • 2000
  • The authors assessed if there is a relationship between joint effusion and the presence of pain, and between joint effusion and disc displacement in 446 temporomandibular joints of 223 subjects who visited the Department of Oral Medicine, Kyungpook National University Hospital with the complaints of temporomandibular joint problem. The amount of joint effusion and the position of disc were determined from magnetic resonance images of the temporomandibular joints. The position of disc was classified into normal disc position, disc displacement with reduction (DDWR), and disc displacement without reduction (DDWOR). The amount of joint effusion was graded according to the extent of joint area of high signal intensity on T2-weighted MR images. These findings were correlated with one another and statistically analyzed. The results were as follows; 1. The incidence of temporomandibular joint pain Was higher in the joints with higher amount of joint effusion (P<0.001). 2. The proportion of temporomandibular joints with higher amount of effusion increased in the joints with more advanced articular disc displacement (P<0.001).

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The influence of disc wear on the behavior of the temporomandibular joint: a finite element analysis in a specific case

  • Duarte, Ricardo J.;Ramos, Antonio;Mesnard, Michel
    • Advances in biomechanics and applications
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    • v.1 no.3
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    • pp.159-167
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    • 2014
  • The aim of this study was to evaluate the influence of disc thickness on the normal behavior of the temporomandibular joint. Based on a specific patient case, CT scan images showing accentuated wear in the right disc were reconstructed and the geometrical and finite element model of the temporomandibular joint structures (cranium, mandible, articular cartilages and articular discs) was developed. The loads applied in this study were referent to the five most relevant muscular forces acting on the temporomandibular joint during daily tasks such as talking or eating. We observed that the left side structures of the temporomandibular joint (cranium, mandible and articular disc) were the most affected as a consequence of the wear on the opposite articular disc (right side). From these results, it was possible to evaluate the differences in the two sides of the joint and understand how a damaged articular disc influences the behavior of this joint and the possible consequences that can arise without treatment.

Treatment of occlusal changes associated with temporomandibular joint disorder (임상가를 위한 특집 2 - 턱관절장애와 관련된 교합변화의 치료)

  • Jung, Jae-Kwang
    • The journal of the Korean dental association
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    • v.51 no.2
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    • pp.84-91
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    • 2013
  • Temporomandibular joint disorder(TMJD) was mainly characterized with joint pain, motion limitation, joint sound, resulted from pathologic conditions in temporomandibular joint and around tissue. As temporomandibular joint is one of decisive factors determining the occlusion, disorders in temporomandibular joint may cause the occlusal changes. The causes of occlusal changes related with TMJD can be classified into 2 categories; (1) those related to progression of disorder, 2) those related to treatment of the disorder. The clinical manifestation of occlusal changes depend on their causes and affected site. Therefore, whenever possible, treatment should be directed to the relief of the underlying causes, However, it is not always possible to relieve the underlying conditions. Moreover, some occlusal changes may remain irreversible even after the considerable improvement in clinical symptoms. Regarding the treatment of the permanent occlusal changes, it has been reported that the extensive occlusal treatment including occlusal adjustment, prosthodontic treatment, orthodontic treatment should be applied. Here, we present with a case report of occlusal change caused by the progressive temporomandibular joint disorder, together with introducing the intermaxillary traction appliance as the possible treatment option.