title: Casein phosphopeptide-amorphous calcium phosphate and shear bond strength of adhesives to primary teeth enamel.
abstract: BACKGROUND
  CPP-ACP (Phosphopeptide-Amorphous Calcium Phosphate) has an important role in caries prevention in pediatric patients. This study was done, because of the great use of CPP-ACP and the need for restoration for teeth treated with CPP-ACP as well as the importance of shear bond strength of adhesives in the success of restorations.
  
  
  OBJECTIVE
  This study aimed to evaluate the effect of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) on shear bond strength of dental adhesives to enamel of primary teeth molars.
  
  
  METHODS
  This in vitro study was conducted on 180 extracted primary molars. They were randomly divided into 6 groups and each group was divided into 2 subgroups (treated with CPP-ACP and untreated). In subgroups with CPP-ACP, enamel was treated with CPP-ACP paste 1 h/d for 5 days. Types of adhesives that were evaluated in this study were Tetric N-Bond, AdheSE, AdheSE One F, single Bond 2, SE Bond, and Adper Prompt L-Pop. Shear bond strength was tested with a universal testing machine and mode of failure was evaluated under stereomicroscope. Data were analyzed by T test, 2-way analysis of variance (ANOVA), Tukey and Fisher exact test using SPSS18. P < 0.05 was considered as significance level.
  
  
  RESULTS
  Shear bond strengths of different adhesive systems to enamel of primary teeth treated and untreated with CPP-ACP showed no significant difference (P > 0.05). Mode of failure in all groups regardless of CPP-ACP administration was mainly adhesive type. Our results indicated that CPP-ACP did not affect shear bond strength of studied adhesives to primary teeth enamel.
  
  
  CONCLUSIONS
  To have a successful and durable composite restoration, having a high strength bonding is essential. Considering the wide use of CPP-ACP in preventing tooth decay and the role of adhesive shear bond strength (SBS) in success of composite restoration, we conducted the present study to evaluate the effect of CPP-ACP on the SBS of adhesives to primary teeth enamel.
authors: Pediatric Dentistry Group, Dentistry Faculty, Kerman University of Medical Sciences, Kerman, IR Iran.
authors: Elham
authors: E
authors: Farokh Gisovar
authors: Pediatric Dentistry Group, Dentistry Faculty, Rafsanjan University of Medical Sciences, Rafsanjan, IR Iran.
authors: Nassim
authors: N
authors: Hedayati
authors: Restorative and Cosmetic Dentistry Group, Dentistry Faculty, Kerman University of Medical Sciences, IR Iran.
authors: Niloofar
authors: N
authors: Shadman
authors: Pediatric Dentistry Group, Dentistry Faculty, Kerman University of Medical Sciences, Kerman, IR Iran.
authors: Leila
authors: L
authors: Shafiee
keywords: Adhesive; Bond Strength (BS); CPP-ACP