[A longitudinal study on individual fluctuation of signs in accordance with TMJ dysfunction syndrome in adolescents].
There are no reports with regard to fluctuation of signs concerning the TMJ dysfunction syndrome in adolescents. Concerning this problems, we examined 145 children (70 boys and 75 girls) of junior high school age and 429 children (202 boys and 227 girls) of senior high school age for 2-years (total 3-years) longitudinally. The results obtained were as follows: 1. The incidence of the TMJ dysfunction syndrome involved 10.3% in 1984, 15.9% in 1985, 15.9% in 1986 of junior high school age students and 11.7% in 1984, 18.4% in 1985, 31.0% in 1986 of senior high school age students. 2. The incidence of the individual that at least once during the 3-years period showed some or multiple signs of TMJ dysfunction syndrome was 31.0% of junior high school age students and 39.8% of senior high school age students. The incidence of the individual that had shown no signs of the TMJ dysfunction syndrome at all during the 3-year period was 69.0% of junior high school age students and 60.4% of senior high school age students. 3. With regard to individual fluctuation of signs of the TMJ dysfunction syndrome, there was a total of 2.8% of junior high school age students and 5.1% of senior high school age students, signs being recorded for all 3-years. In 28.3% of junior high school age students and 34.5% of senior high school age students, signs fluctuated during the entire 3 years.
Ohno
H
H
Morinushi
T
T
Ohno
K
K
Oku
T
T
Ogura
T
T
D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008137:Longitudinal Studies; D008297:Male; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000453:epidemiology / Q000503:physiopathology*