Maximum mouth opening
Before surgery, all patients showed good values of buccal opening (44.9 ± 4.6 mm; PG: 44.9 ± 4.5 mm; CG: 44.8 ± 4.8 mm). At T1, the maximum buccal opening was significantly reduced with no difference between PG (35.6 ± 8.2 mm) and CG (33.7 ± 7.3 mm) (Assessment of maximum mouth opening at T0 – T1 – T2 timeline using a calibrated rule. The maximum inter-incisal distance between the upper and lower central incisor was calculated