The effect of a self- etching primer on the shear bond strength of orthodontic brackets: An in vitro study

Ranjith Raveendran; Mailankody Jayarama

Volume : VIII, Issue : VII, July - 2019

The effect of a self- etching primer on the shear bond strength of orthodontic brackets: An in vitro study

Ranjith Raveendran, Mailankody Jayarama

Abstract :

Background: This study evaluated the bond strength of a commercially available self etching primer system and compared it with a conventional etching adhesive system. Methods: Forty human premolars with stainless steel Begg ackets was used. Transbond plus TM Self Etching Primer and Transbond TM XT Light Cure Adhesive paste (experimental group) was compared to Scotchbond TM etchant, Transbond TM XT Light cure adhesive primer and TransbondTM XT Light Cure Adhesive paste (control group). The maximum load, the eaking loads were recorded. Student t test was used to compare the bond strength between the groups. Results: The mean shear bond strength was 16.77� 2.87 MPa (control group) as compared to 11.707�2.49 MPa(experimental group). A statistically significant difference was observed in the mean eaking load values between cases and controls (P< 0.05). Conclusions: The bond strength obtained for self etching primer is lower when compared to that of the conventional etching system. But, current advances in orthodontic materials and techniques aims to make orthodontic treatments more patients friendly thereby adding benefits in the field of Orthodontics.