• Journal of Korean Academy of Oral and Maxillofacial Radiology
• /
• v.17 no.1
• /
• pp.89-106
• /
• 1987

The author obtained individualized lateral cephalometric tomograms from 23 young adults (46 of left and right normal TMJ) with normal occlusion and 20 patients (14 of patient asymptomatic TMJ and 26 of patient symptomatic TMJ) with clicking and painful TMJ after the analysis of submental vertex view. Individualized lateral cephlometric tomogram analysis and TMJ space analysis were performed after tracing each film. All data from these analysis was recorded and statistically processed with CYBER computer system. 1. The results were obtained as follows. In submental vertex view, the mean condylar angulation of Rt. side in normal group was 20.348°±6.358°, Lt. side was 18.870°±7.777° and Rt. side in patient group was 19.350°±7.576° Lt. side was 17.750°±6.146° respectively. The mean condylar angulation of Rt. side was larger than Lt. side in normal and patient group. 2. When the mandible was moved from centric occlusion to centric relation, condylar position relating to the glenoid fossa was placed posteriorly and superiorly in normal TMJ group and patient symptomatic TMJ group. 3. In centric relation position, the proportion of anterior space to posterior space was 1.593 for normal TMJ group, 1.604 for patient asymptomatic TMJ group and 1.671 for patient symptomatic TMJ group. In centric occlusion position, 1.390 for normal TMJ group, 1.539 for patient asymptomatic TMJ group and 1.196 for patient symptomatic group. Normal TMJ group, patient asymptomatic TMJ group and patient symptomatic TMJ group and patient symptomatic TMJ group revealed significant difference in ∠C₂ measurement. (ANOVA-test, p<0.05) 5. Normal group and patient group revealed significant difference in Fh, ∠C₁and ∠C₂ measurement. (T-test, p<0.05) 6. There were strong positive correlation (0.8771) between Fp and Fm, and strong negative correlation (-0.9039) between ∠C₂ and ∠C₁ from the lateral cephalometric tomogram analysis.

• Journal of TMJ Balancing Medicine
• /
• v.1 no.1
• /
• pp.1-8
• /
• 2011

Objectives: TMJ is the joint that connects the mandible to the skull, and it balances the body by holding the skull in the right position. The Meridian flows through the whole body. The objective of this study is to examine and clarify the relationship between the Temporomandibular Joint (TMJ) and the Meridian flow, especially around the TMJ. Methods: We reviewed the literature on the 8 Extra Meridians and the 12 Main Meridians around the TMJ. Results & Conclusion: Eight Extra Meridians keep the balance and harmony of the TMJ, and also play an important role in maintaining equilibrium of Yin and Yang of the whole body. The 12 Main Meridians, twelve Meridian Divergence (12經別) and Meridian Sinew also play an important role in the balance and harmony of the whole body based on the function of the Vicera and Bowels (臟腑). So it is conceivable that the role of TMJ is important in terms of health care.

• Journal of Oral Medicine and Pain
• /
• v.11 no.1
• /
• pp.19-27
• /
• 1986

Registration of the mandibular movement in patients with temporomandibular joint noise (clicking and/or crepitus) was performed using one of mandibular tracking devices(SAPHON VISI-TRAINER CII,Tokyo Shizai-sha Inc.,Japan). The obtained results were follows : 1. In many cases, the movement pattern of light emitting diode(LED) attached on the mandibular midline showed lateral deviation from a vertical reference line which was pronounced in association with TMJ noise during opening and closing. 2. In patients with unilateral TMJ noise the mandibular midline usually towards the side demonstrating TMJ noise during opening. 3. A distinct V-shaped discontinuity in the trace of velocity of mandibular movement was found at the point of the TMJ noise. 4. In patients with TMJ noise the velocity of mandibular movement at the point of the TMJ noise was decreased rapidly. 5. In several cases, TMJ noise could be eliminated by traning of Rocabado`s control of TMJ rotations.

• Journal of TMJ Balancing Medicine
• /
• v.3 no.1
• /
• pp.8-14
• /
• 2013

Objectives: This study is aimed to recognize the therapy principles of TMJ balancing in Korean medicine. Methods: TMJ diseases in Donguibogam were discussed in the view of Korean medicine basic theory. Results: Manual therapy and fixed therapy using toolswere used for treatment in dislocating jaw by yawn or TMJ diseases in Korean medicine. Conclusions: In Donguibogam, manual therapy and fixed therapy were used for TMJ dislocating, and acupuncture therapy and herbal therapy were used in toothache by dependent on the cause and the symtoms.

• Journal of TMJ Balancing Medicine
• /
• v.3 no.1
• /
• pp.1-7
• /
• 2013

Objectives: This study is aimed to recognize the role of TMJ in Korean medicine basic theory and clinic, which is the foundation of human life sustaining. Methods: It was identified and confirmed the organic connection between TMJ and Korean medicine specially Meridian theory. Results: In Korean medicine be based policies to promote of Oriental Medicine Promotion Act, the therapy of TMJ balancing is one of the parts of Korean medicine treatment of technique. TMJ balancing performs a primary role to treat diseases in the brain and the cervical vertebrae. Conclusions: TMJ balancing medicine is the part of integrative medicine for systemic diseases treatment to be based on Korean medicine basic theory.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.48 no.3
• /
• pp.178-181
• /
• 2022

Williams-Beuren syndrome (WS) is a rare genetic disorder that results from microdeletion at chromosome 7, which harbors the elastin gene. Clinical findings include arteriopathy, aortic stenosis, hypertension, and laxities and contractures in different joints throughout the body. While many components of the temporomandibular joint (TMJ) normally contain elastin, there are few reports on TMJ manifestations of WS. This study reports a TMJ ankylosis case in a WS patient and shares insight on a possible link between development of TMJ ankylosis and elastin deficiency in WS patients. A WS patient presented with bilateral TMJ ankylosis and was successfully treated with TMJ gap arthroplasty. Hypermobility of TMJ and lack of elastin in retrodiscal tissue can induce anterior disc displacement without reduction. Due to lack of elastin, which has a significant role in the compensatory and reparatory mechanism of TMJ, WS patients might be prone to TMJ ankylosis.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.19 no.2
• /
• pp.191-199
• /
• 1997

Mandibular trauma is developed due to traffic accident, fall down, industrial injury, and others. TMJ disorder is usually also developed after facial traumatic injury. Many authors suggested that disc displacement or tearing, acute synovitis, TMJ ankylosis, traumatic arthritis, or effusion are developed after facial trauma. It is still very controversible what is the best treatment of TMJ injury such as condylar fracture and meniscal injury. In TMJ injury, synovial inflammation is developed and pain mediators such as prostaglandin E2 or leukotriene B4 are released from the synovial membrane. This can be a cause of TMJ disorder. I present a variety of experimental study about the condylar fracture and meniscal injury and enzyme-immunoassay of synovial fluid after mandibular trauma that have been studied since 1992 and establish the treatment criteria of traumatic TMJ injury. I think that the treatment option of condylar fracture depends upon the surgeon's criteria exclusively. There are no significant differences between conservative and surgical treatment. If the aggressive functional physical therapy and long-term followup be performed, the favorable functional recovery of TMJ can be obtained. And I think that the initial surgical management of meniscus of TMJ is unnecessary in condylar fracture. And also arthrocentesis can be available to release the patient's subjective symptoms and improve the healing of injured TMJ.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.19 no.1
• /
• pp.1-13
• /
• 1997

Preoperative and postoperative TMJ symptoms were observed in mandibular prognathism of 30 patients operated on by Le Fort I osteotomy and intraoral vertical ramus osteotomy. The alterations of TMJ symptoms were investigated and the relationship between changes of TMJ symptoms and some cephalometric values including occlusal plane angle, mandibular plane angle, posteior ramal height and a degree of deviation of mandibular incisor midline to facial midline were observed. The results are as follows. The incidence of patient with TMJ symptoms before orthognathic surgery was 40% and after orthognathic surgery was 20%. The most frequetly encountered symptoms in orthognathic TMJ dysfunction patients were TMJ pain and/or clicking. After surgery 66% of the preoperative symptomatic patients reported improvement TMJ symptoms. On the orther hand 2 patient (6%) of the preoperative asymptomatic patients developed TMJ symptoms after surgery. Preoperatively, 60% of the facial asymmetric patients with mandibular prognathism had TMJ symptomas. The more severe facial asymmetry was, the higher incidence of TMJ symptoms was. The alteration of occlusal plane angle and mandibular plane angle seems to be one of the contributing factors which make to change TMJ symptoms in orthognathic patients. But its amount seems to be low significance. Increase or decrease of posterior ramal height have influence on the change of TMJ symptoms.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• v.28 no.2
• /
• pp.141-146
• /
• 2002

Purpose: Various treatment methods have been utilized for recurrent dislocation of the TMJ (temporomandibular joint). The purpose of this study is to define the effect of the eminectomy with discoplasty that had been performed in patients with TMJ luxation. Materials and Methods: Twenty patients (22 joints), whose diagnosis were TMJ dislocation were selected in 772 patients (871 joints) who had been underwent TMJ surgery between 1988 and 2000. The selected patients were divided into two groups. Group I (12 joints) was the habitual-luxation group which involves the recurrent TMJ dislocation patients. Group II (10 joints) was the open lock-history group which involves the patients who had more than two episodes of TMJ luxation and TMJ disorders. The history of TMJ luxation, maximum mouth opening and other TMJ signs and symptoms before and after surgery were reviewed. Results: In group I, one patient who had been underwent both TMJ operation had a intermittent locking, but it disappeared after post-operative 32 months. In group II, intermittent pain was present in one patient who had bruxism, but it was disappeared by splint therapy. No more TMJ dislocations and other pains were checked in other patients of group I and II. Conclusion: Eminectomy with discoplasty may be used to successfully treat the TMJ habitual luxation accompanied with abnormal condition of the disc-condyle complex.

• Imaging Science in Dentistry
• /
• v.45 no.2
• /
• pp.103-108
• /
• 2015

Bony fusion between the mandibular condyle and skull base involves temporomandibular joint (TMJ) bony ankylosis. This condition might originate from trauma, infection, or systemic disease. TMJ adhesion can develop after synovial damage. Both TMJ ankylosis and adhesion lead to functional impairment and pain. Here, we present a case of a 50-year-old female who had bony ankylosis of the right TMJ and adhesion of the left TMJ. She had otitis media in the right ear. A large mass in the right TMJ was observed on computed tomograph. Magnetic resonance image showed a large fused bone mass with normal bone marrow in the right TMJ and flattening of the condyle with a thin disk in the left TMJ. Gap arthroplasty with temporal fascia was performed on the right TMJ, and discectomy, high condylectomy, and coronoidectomy were performed on the left TMJ. During a 2-year follow-up after surgery, the patient had no recurrence.