The Prevalence of TMJ Osteoarthritis in Korean TMD Patients

temporomandibular joint;temporomandibular disorders;osteoarthritis;prevalence;617

치과대학 치의학과 ;

University:서울대학교 대학원

关键词: temporomandibular joint;    temporomandibular disorders;    osteoarthritis;    prevalence;    617;   

Others  :  http://s-space.snu.ac.kr/bitstream/10371/131033/1/000000017441.pdf

美国|英语

来源: Seoul National University Open Repository

【 摘 要 】

Osteoarthritis(OA) is a progressive joint disease characterized by an imbalance of articular cartilage biosynthesis and degradation attributed to both inflammatory and biomechanical factors. In temporomandibular joint(TMJ), OA is also an age-related disease like other joints. And some epidemiological researches have established higher prevalence of TMJ disease and temporomandibular pain in females than males. This study aims to investigate the incidence of TMJ OA in Korean TMD patients based on computed tomographs(CT) images to provide the epidemic characteristics of TMJ OA. A retrospective cross-sectional study was performed on clinical records and radiographs taken of 1,038 patients(297 male and 741 female, mean age 31.1 ± 17.4 years and 34.0 ± 16.2 years, respectively) who visited a clinician, associate professor Jeongyun Lee at the TMJ & Orofacial Pain Clinic of Seoul National University Dental Hospital for their TMD symptoms examined in 2010. The plain radiograghs include orthopantomogram, TMJ orthopantomogram, and transcranial radiographs, which were routinely taken in the TMD diagnostic procedure and CT, which was taken to verification of TMJ osteoarthritis. The obtained results were as follows: 1. The incidence of TMJ OA is 18.11%(188 patients in 1038 patients). The prevalence of TMJ OA in female patients is 21.05%(156 patients in 741 patients), 1.94 times(P<0.001) higher odds than that in male patients(10.77%, 32 patients in 297 patients), and relatively high in young adult, in their third decade.2. The positive TMJ OA patients group according to RDC/TMD including plain radiograghs has 15.79 times(P<0.001) higher odds than the negative group. 3. However, the prevalence of TMJ OA has no statistically significant correlation with age in both genders. Likewise, the prevalence of TMJ OA has also no statistically significant correlation with the present of pain and the disc displacement diagnosed by only clinical examination based on the RDC/TMD.In conclusion, the prevalence of TMJ OA in TMD patients is higher in female than male, and there is no correlations between the prevalence of TMJ OA in TMD patients and age unlikely the other joints. Furthermore, the prevalence of TMJ OA in TMD patients has no relationships with the clinical signs like pain and disc displacement. It can be suggested that the epidemiologic characteristics of TMJ OA differs from those of other joints, and a more extensive study based on the general population is necessary.