Group	Laser treatment	Accidentally detached after opening the device	Subjected to mechanical test	µSBS test result (MPa)
1. OptiBond solo plus	yes	0	30	20.8 ± 5.5
1. OptiBond solo plus	no	6	24	15.6 ± 4.5
2. Optibond All-in-one	yes	3	27	18.9 ± 5.3
2. Optibond All-in-one	no	4	26	14.0 ± 4.3
3. Vertise Flow	yes	15	15	7.9 ± 2.8
3. Vertise Flow	no	12	18	4.3 ± 2.2
4. ketac fil	yes	1	29	4.7 ± 1.9
4. ketac fil	no	2	28	2.6 ± 1.2
Total		43	197