Er:YAG Laser for Brackets Bonding: A SEM Study after Debonding

Table 1

ARI score in whole sample and within groups—descriptive statistics.

Group	. obs.	Min.	1st Q.	Median	3rd Q.	Max.
Control group	11	1	1	1	1,5	2
Group 2	11	2	2	4	4	4
Group 3	11	1	2	2	3	4
Group 4	11	1	1	3	3,5	5
Group 5	11	1	1	3	3	5
Whole sample	55	1	1	2	3	5