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Table 4 Comparison of surgery duration and patient’s satisfaction in the two surgical techniques

From: Use of piezoelectric surgery and Er:YAG laser:which one is more effective during impacted third molar surgery?

Paired t test (P value)

Laser

Piezosurgery

Variable

S.D

Mean

S.D

Mean

0.0001

3.081

9.93

2.165

6.60

Osteotomy duration (t2)

0.0001

3.464

27

3.109

22.33

Total surgery duration (tt)

0.096

0.594

2.73

0.594

3.07

Patient’s satisfaction