Methods and Factors involved in Bonding Orthodontic Attachments to Enamel

Abstract

1. Eastman 910 was used as a plastic bonding agent to determine whether it could be used in clinical orthodontics to bond attachments directly to human enamel.
2. The greater the area contact between attachment and tooth surface, the longer the attachment will hold.
3. The greater the surface adaptation between attachment and tooth surface, the longer the attachment will hold.
4. Moisture eventually breaks the bond seemingly by fluid molecular migration between the faying surfaces.
5. Following the indirect method of fabrication, the attachments will give enough adhesion clinically to accomplish short procedures before the bond is broken ; at which time it may be re-attached if more time is needed.