Table 1.

Maximum Mouth Opening (MMO, mm) at different follow-up intervals

Time point	Group A (80%) Mean ± SD	Group B (40%) Mean ± SD	Group C (Control) Mean ± SD	ANOVA (between groups) p value
Pre-operative	33.7 ± 2.11	32.8 ± 2.53	33.8 ± 2.53	0.527
1 week	37.5 ± 2.22	35.8 ± 1.87	37.6 ± 1.51	0.075
3 months	41.6 ± 1.26	39.0 ± 1.33	39.7 ± 1.25	0.016*

Post-hoc comparisons (3 months)

• Group A vs. B: p = 0.018*

• Group A vs. C: p = 0.030*

• Group B vs. C: p = 0.233

 Effect sizes for significant post-hoc comparisons were calculated using Cohen’s d

Within-group comparisons (repeated measures ANOVA)

• Group A: p = 0.005*

• Group B: p = 0.037*

• Group C: p = 0.039*

* Statistically significant at p ≤ 0.05