Efficacy of Primerless Light Cured Orthodontic Composite over two conventional Bonding Systems; An InVitro Study

Dr. Prasad Chitra; Dr. Yashpal

Volume : III, Issue : X, October - 2014

Efficacy of Primerless Light Cured Orthodontic Composite over two conventional Bonding Systems; An InVitro Study

Dr. Prasad Chitra, Dr. Yashpal

Abstract :

Objective: To study bonding and debonding characteristics of primerless orthodontic composite in comparison with two conventional bonding systems. Materials and Methods: Thirty extracted human premolar teeth mounted on similar sized aluminum blocks were divided into three groups of ten teeth each. All teeth were bonded with three different bonding systems with metallic premolar ackets (0.022� Ortho Organizers) and were evaluated for shear bond strength using an Instron testing machine. Surface characteristics were studied under scanning electron microscopy (SEM) and evaluated using the adhesive remnant index (ARIndex). Results were evaluated and compared. Results: Shear bond strength (SBS) of primerless light cure Heliosit� (Ivoclar Vivadent, Schaan,Liechtenstein,) composite is clinically significant and lies intermediate to Transbond XT� light–cure composite (3M Unitek, CA, USA) and Rely–a–Bond� self–cure composite(Reliance Orthodontic Product, Inc., Illinois, USA). Conclusion: Heliosit� light cured primerless composite may be recommended for routine clinical use due to its ideal characteristics of sufficient bond strength and reduced chances of enamel damage at debonding