Date of Graduation
School of Dentistry
The in vitro study utilized 90 extracted premolars. The teeth were divided into six groups. In the first three groups brackets were bonded with Concise, Transbond XT, or APC Plus and debonded 30 minutes after bonding. In the second three groups, brackets were bonded with Concise, Transbond XT, or Concise and debonded after thermocycling. The in vivo study consisted of 31 patients and a split arch technique was utilized. Adhesives used were APC Plus and Transbond XT. Bond strengths for thermocycled Concise and Transbond XT were significantly greater than the other in vitro groups. Concise debonded after 30 minutes left significantly more adhesive on the teeth than the other in vitro groups, indicating that the failure occurred at the adhesive bracket interface. There was no significant difference in the bracket survival rate between APC Plus and Transbond XT in vivo.
Parks, Meredith S., "An in vivo and in vitro study of a new orthodontic bonding agent" (2006). Graduate Theses, Dissertations, and Problem Reports. 4256.