title: Comparison of Shear Bond Strength and Estimation of Adhesive Remnant Index between Light-cure Composite and Dual-cure Composite: An in vitro Study.
abstract: OBJECTIVE
  To measure and compare the shear bond strength and adhesive remnant index of light-cure composite. (Enlight, Ormco.) and dual-cure composite (Phase II dual cure, Reliance Ortho).
  
  
  METHODS
  Sixty extracted human premolar teeth were divided into two groups: group I (blue): conventional light cure composite resin. (Enlight, Ormco.) and group II (green): dual cure composite resin. (Phase II dual cure, Reliance Ortho.) with 30 teeth in each group. These samples were tested on the universal testing machine to measure the shear bond strength.
  
  
  RESULTS
  Student t-test showed that the mean shear bond strength of the conventional light cure group (8.54 MPa - 10.42 MPa) was significantly lower than dual cure group (10.45 MPa -12.17 MPa).
  
  
  CONCLUSIONS
  These findings indicate that the shear bond strength of dual-cure composite resin (Phase II dual cure, Reliance Ortho) is comparatively higher than conventional light-cure composite resin (Enlight, Ormco). In the majority of the samples, adhesive remnant index (ARI) scores were 4 and 5 in both the groups whereas score 1 is attained by the least number of samples in both the groups. How to cite this article: Verma G, Trehan M, Sharma S. Comparison of Shear Bond Strength and Estimation of Adhesive Remnant Index between Light-cure Composite and Dual-cure Composite: An in vitro Study. Int J Clin Pediatr Dent 2013;6(3):166-170.
authors.affiliation: Postgraduate Student (III year), Department of Orthodontics and Dentofacial Orthopedics, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India, , e-mail: dr.geetavema@yahoo.in.
authors.forename: Geeta
authors.initials: G
authors.lastname: Verma
authors.affiliation: Professor and Head, Department of Orthodontics, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India.
authors.forename: Mridula
authors.initials: M
authors.lastname: Trehan
authors.affiliation: Professor and Head, Department of Oral and Maxillofacial Surgery Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan India.
authors.forename: Sunil
authors.initials: S
authors.lastname: Sharma
keywords: Adhesive remnant index; Dual-cure; Light-cure; Shear bond strength