Table 5.

Unassisted maximum opening (mm) in subjects with and those without persistent TMJ clicking (continuing for more than two years)

Subjects	1988	1989	1990	1991	1992
No. 12 and 18	41.0 ± 0	41.5 ± 2.1	45.0 ± 4.2	50.0 ± 1.4	45.0 ± 0
Other subjects	42.4 ± 2.8	44.7 ± 4.4	45.6 ± 3.4	45.8 ± 3.2	45.4 ± 3.2
No. 31 and 46	45.5 ± 6.4	48.0 ± 4.2	47.0 ± 1.4	44.5 ± 0.7	47.0 ± 4.2
Other subjects	42.5 ± 4.2	45.5 ± 1.0	46.1 ± 1.0	47.0 ± 3.0	56.9 ± 5.5
No. 59 and 60	49.7 ± 3.2	53.0 ± 5.6	57.5 ± 4.9	60.5 ± 7.8	62.0 ± 5.7
Other subjects	45.0 ± 4.8	47.7 ± 4.0	47.8 ± 3.9	49.5 ± 3.9	50.4 ± 3.5