title: Comparative evaluation of traditional and self-priming hydrophilic resin.
abstract: BACKGROUND
  The purpose of this study was to compare the microleakage of traditional composite (Charisma/Gluma Comfort Bond) and self-priming resin (Embrace Wetbond).
  
  
  METHODS
  Standardized Class V cavities partly in enamel and cementum were prepared in 20 extracted human premolars. Teeth were divided into two groups. Group 1 was restored with Charisma/Gluma Comfort Bond and Group 2 with Embrace Wetbond. The specimens were stored in distilled water at room temperature for 24 h and then subjected to 200 thermocycles at 5°C and 55°C with a 1 min dwell time. After thermocycling teeth were immersed in a 0.2% solution of methylene blue dye for 24 h. Teeth were sectioned vertically approximately midway through the facial and lingual surfaces using a diamond saw blade. Microleakage was evaluated at enamel and cementum surfaces using 10 × stereomicroscope. The statistical analysis was performed using Wilcoxon signed-rank test.
  
  
  RESULTS
  Wetbond showed less microleakage at occlusal and gingival margins as compared with Charisma/Gluma Comfort Bond and the results were statistically significant (P < 0.05).
  
  
  CONCLUSIONS
  Class V cavities restored with Embrace Wetbond with fewer steps and fewer materials offers greater protection against microleakage at the tooth restorative interface.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Dr. H.S.J. Institute of Dental Sciences and Hospital, Chandigarh, India.
authors.forename: Ruchi
authors.initials: R
authors.lastname: Singla
authors.forename: Poonam
authors.initials: P
authors.lastname: Bogra
authors.forename: Bhawana
authors.initials: B
authors.lastname: Singal