Paired t test (P value) | Conventional rotary instrument | Laser | Piezosurgery | Trismus | |||
---|---|---|---|---|---|---|---|
S.D | Mean | S.D | Mean | S.D | Mean | ||
48.0 | 88.4 | 0.599 | 4.69 | 0.599 | 4.69 | Before surgery | |
0.025 | 69.0 | 19.3 | 0.739 | 4.227 | 0.635 | 4.367 | After surgery |
0.0001 | 70.0 | 70.3 | 0.606 | 3.027 | 0.685 | 3.59 | Day 2 after surgery |
0.004 | 80.0 | 30.4 | 0.742 | 4.153 | 0.772 | 4.38 | Day 7 after surgery |