Abstract
ABSTRACTIn this study the bonding survival of total etching and self etching composite resins (Rely-a-Bond, Kurasper F, Ideal 1, Prompt L pomp with Transbond XT) for orthodontic purposes were compared. A sample of 20 patients were treated with fixed appliances. The treatment group consisted of 10 girls and 10 boys who were 16–19 years old. A split mouth technique was used. The patients were followed for a period of 8 months. Bond failures were recorded in each patient's special record, with the time of bond failure identified as the date when bond failure was noticed. Bond failure rates and the corresponding bracket survival curves were plotted using the Kaplan-Meier product limit estimate. Bracket survival distributions were then compared with a student t test. The type of the bonding agent did not influence the bracket survival rate significantly (p >.05). In conclusion, Self etching primers could be used as an alternative to conventional etching adhesive systems.
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