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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