Observational Study on the Preparation of the Implant Site with Piezosurgery vs. Drill: Comparison between the Two Methods in terms of Postoperative Pain, Surgical Times, and Operational Advantages

Table 1

Pain rate of patients in intraoperative and postoperative times recorded by VAS Score.

Group	VAS
	Intraop.	8 hours	1 day	2 days	3 days	4 days	5 days	6 days	7 days	15 days	Diff.
G1	4.05	3.58^a	2.72^b	2.28^c	1.67^d	0.86^e	0.77	0.49^f	0.33^g	0.05^h
G2	2.51	2.09	1.47^b	1.02^j	0.70^k	0.42^l	0.26	0.12	0.09	0.02
Diff.

Friedman test; Wilcoxon test. ^aSignificant difference with “intraop.” VAS; Wilcoxon test, . ^bSignificant difference with “8 hours” VAS; Wilcoxon test, . ^cSignificant difference with “1 day” VAS; Wilcoxon test, . ^dSignificant difference with “2 days” VAS; Wilcoxon test, . ^eSignificant difference with “3 days” VAS; Wilcoxon test, . ^fSignificant difference with “5 days” VAS; Wilcoxon test, . ^gSignificant difference with “6 days” VAS; Wilcoxon test, . ^hSignificant difference with “7 days” VAS; Wilcoxon test, . ^jSignificant difference with “1 day” VAS; Wilcoxon test, . ^kSignificant difference with “2 days” VAS; Wilcoxon test, . ^lSignificant difference with “3 days” VAS; Wilcoxon test, .