Computer-aided interactive indirect bonding

The introduction of the virtual occlusal set-up, limited to the permanent dentition with dento-dental and dento-alveolar discrepancies, based on the straight wire technique with final arches .020" x .025" ss in straight wire brackets .022" x .028" is an evolution of the 3D digital model with clinical impact.

To present a computer-aided solution to orthodontic indirect bonding, allowing accurate positioning of straight-wire brackets based on a virtual occlusal set-up resulting from the treatment plan.

Computer-aided indirect bonding was applied in two cases: a Class II patient in the permanent dentition, crowding, rotation of upper and lower bicuspids and a Class I patient in the permanent dentition with already extracted 1.4, 2.4, 3.4, 4.4, severe crowding, rotation, arch form reduction. Speed brackets were utilized in both cases.

In the first case the brackets' starting position on the patient corresponds to the final position on the virtual occlusal set-up. In the second case the resulting occlusion at the end of treatment corresponds to the final occlusion on the virtual occlusal set-up.

The computerized tools employed in the process enabled precise bracket placement on the stone model. An algorithm from the virtual set-up is the determinant for the precision.

Computer aided indirect bonding is a method of placing brackets precisely.