Journal of Temporomandibular Joint
Online ISSN : 1884-4308
Print ISSN : 0915-3004
ISSN-L : 0915-3004
Volume 23, Issue 3
Displaying 1-4 of 4 articles from this issue
  • Masashi SUGISAKI, Naohisa TAKANO, Katsuhiko HAYASHI, Takashi SAITO, Er ...
    2011 Volume 23 Issue 3 Pages 143-148
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    We previously reported on the prevalence and contributory factors of temporomandibular disorders (TMD) for persons working in the Tokyo metropolis using a TMD screening questionnaire. A multivariate logistic regression analysis revealed a feeling of fatigue (OR=1.55) among males who were positive for TMD as a significant factor, and feelings of depression (OR=1.37) and fatigue (OR=1.30) among females who were positive for TMD. The purpose of this pilot study was to investigate gender-related concerns between job contents and TMD.
    Methods: With the cooperation of the Tokyo Dental Association, we carried out are questionnaire survey of applicants for dental check-up at 13 general dental offices in Tokyo. Responses were obtained from 253 subjects and were used as secondary data for analysis. As we excluded the subjects who replied that their commuting time was 0, a total of 180 subjects were included. The questionnaire included four TMD screening questions, gender, age, and eight job content questions, and the answers were analyzed mainly by multivariate logistic regression analysis.
    Results: Mean age did not show a difference. Regarding differences in job contents by gender, men had a significantly "long driving time" and "long meeting time", and women had a "long time before going to bed" (correction value: p=0.05/9=0.0055). As for "personal computer (PC) operation time", there was no difference between the sexes. There was also no difference in job contents between the positive TMD group and the negative group. "PC operation time" was significant with an odds ratio of 1.85 (p=0.031) in subjects only for women by multivariate logistic regression analysis.
    Conclusion: It is suggested that gender and age affected the relationship between TMD and job contents. Although no direct relation was confirmed, using a PC at work for females was identified as a contributory factor for TMD.
    Download PDF (297K)
  • Norimichi NAKAMOTO, Tsuyoshi SATO, Yuichiro ENOKI, Aya NAKAMOTO, Naoko ...
    2011 Volume 23 Issue 3 Pages 149-154
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    The purpose of this study was to clarify the facial skeletal characteristics of patients with masticatory muscle tendon-aponeurosis hyperplasia. We traced the cephalometric radiographs of 10 adult female patients and made 10 linear measurements and 8 angler measurements. The control group was the cephalometric norm for Japanese adult females (n=50). The difference of each parameter between the patient group and the control group was statistically analyzed using the unpaired t test.
    As a result, ANS-Me, Is-Is', Mand. Pl. to SN, Occ. Pl. to SN and Gonial Angle of the patient group were significantly low, and Pog'-Go and Ramus Pl. to SN were significantly high compared with those of the control group. The patient group was divided into three facial skeletal types. All three types showed a square mandible.
    Download PDF (389K)
  • Yoshiyuki TAKATA, Tadaharu KOBAYASHI, Hideyoshi NISHIYAMA, Yukiko ONO, ...
    2011 Volume 23 Issue 3 Pages 155-160
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    Suppurative arthritis is a comparatively rare disease. We report a case of suppurative arthritis of the right temporomandibular joint with an abscess in the lateral pterygoid muscle. The patient was a 58-year-old man who complained of swelling of the right temporomandibular joint area and jaw opening pain. There was diffuse swelling and induration in the right temporomandibular joint area. Maximum interincisal opening was 18 mm and lateral open bite of about 2 mm on the right molar region was recognized in the occlusal position. Computed tomography and MRI showed bone resorption at the medial pole of the right mandibular condyle and abscess formation in the right temporomandibular joint capsule and lateral pterygoid muscle. Viscous yellowish-white pus was aspirated through a puncture needle from the abscess. Peptostreptococcus micros, which was resident oral flora, was identified by bacteriological culture. Following treatment with antibiotics, swelling of the right temporomandibular joint area disappeared and maximum interincisal opening increased to 47 mm with a rightward mandibular deviation and joint noise. Since resident oral flora was the offending bacteria of the infection, it was thought that the odontogenic infection had spread to the mandibular condyle and the lateral pterygoid muscle.
    Download PDF (1276K)
  • Koji KASHIMA, Kaori IGAWA, Koichi TAKAMORI, Junko NAGATA, Izumi YOSHIO ...
    2011 Volume 23 Issue 3 Pages 161-165
    Published: 2011
    Released on J-STAGE: August 01, 2012
    JOURNAL FREE ACCESS
    We report a case of acute suppurative inflammation around the temporomandibular joint (TMJ) region originating in periodontitis mimicking temporomandibular disorders (TMD). A 65-year-old male presented with dull pain in the right TMJ region and limitation of mouth opening with sudden onset only one day before the first visit. He had been treated for periodontal abscess of the upper first molar on the right side 20 days earlier. Although a working diagnosis of TMD was made, the pain and limitation of mouth opening gradually increased in spite of pharmacological treatment. Subsequent MR imaging revealed joint effusion in the superior joint compartment of the right TMJ as well as high intensity of the masticatory muscles in T2 weighted images, and a final diagnosis of suppurative inflammation of the TMJ and masticatory muscles originating in periodontitis was made. The clinical course was satisfactory after receiving a 9-day course of administration of antibiotics (ABPC) and subsequent functional rehabilitation.
    Download PDF (624K)
feedback
Top