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Table 3 Average surface roughness (Sa values) of bracket slot (measurement in micrometre)

From: Evaluation of surface roughness of the bracket slot floor—a 3D perspective study

Group A—3M Unitek Group B—Ormco Group C—Ortho Organizer Group D—American Orthodontics
Mesial slot (A) Distal slot (B) Mesial slot (A) Distal slot (B) Mesial slot (A) Distal slot (B) Mesial slot (A) Distal slot (B)
1.111 0.968 0.371 1.127 1.85 2.459 0.807 0.852
7.875 6.011 2.162 0.548 3.572 2.107 0.663 0.917
0.52 0.778 1.111 1.291 1.834 3.12 0.034 0.298
7.522 7.899 0.446 0.341 2.148 2.132 0.769 0.717
10.329 5.788 1.427 1.472 2.095 1.934 0.363 0.641
0.814 0.813 0.456 0.701 2.32 1.96 0.877 1.09
0.487 1.122 0.652 0.502 2.401 2.346 0.433 0.292
2.055 5.619 2.454 2.242 2.349 1.516 0.722 0.687
0.652 1.117 0.426 0.369 2.205 2.332 1.704 1.537
3.378 3.751 0.786 0.771 2.781 1.951 1.07 1.124
0.921 1.636 0.423 0.683 2.386 1.805 0.423 0.446
0.531 3.801 0.528 0.292 2.198 1.993 0.425 0.387
5.532 3.773 0.601 0.597 3.215 2.171 0.805 0.999
1.1 6.528 2.46 1.743 1.819 2.228 1.109 1.121
0.741 0.661 0.53 0.35 1.799 2.058 0.34 0.403
0.457 1.425 2.736 3.228 1.797 2.163 0.656 0.917
4.971 6.754 0.531 0.42 2.863 1.622 1.181 0.624
6.007 4.548 0.803 0.521 2.184 1.401 1.006 0.833
0.695 0.789 0.426 0.335 1.886 1.521 0.526 0.522
0.393 5.74 3.56 4.02 2.434 2.745 0.843 0.527