Table 2.

Distribution of adhesive remnant index (ARI) in the three groups

Group	Composite without nanoparticles Frequency (percentage)	Composite with silver nanoparticles Frequency (percentage)	Composite with amorphous tricalcium phosphate nanoparticles Frequency (percentage)
Variable
All the resin composite remains on the bracket	2 (16.7%)	0 (0%)	4 (33.3%)
Less than 50% of the resin composite remains on the tooth	2 (16.7%)	3 (25%)	2 (16.7%)
More than 50% of the resin composite remains on the tooth	6 (50%)	4 (33.3%)	6 (50%)
All the resin composite remains on the tooth	2 (16.7%)	5 (41.7%)	0 (0%)
Total	12 (100%)	12 (100%)	12 (100%)