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Volume 37 , Issue 6
November/December 2017
Pages e337–e343

Bond Strength of Self-Adhering Materials: Effect of Dentin-Desensitizing Treatment with a CPP–ACP Paste

Fereshteh Shafiei, DMD, MScD/Reza Derafshi, DMD, MScD/Mahtab Memarpour, DMD, MScD

PMID: 29023621
DOI: 10.11607/prd.2850

This study investigated the effect of dentin-desensitizing treatment with a casein phosphopeptide–amorphous calcium phosphate (CPP–ACP) paste on shear bond strength (SBS) of two types of self-adhering (SA) restorative materials: resin-modified glass-ionomer (Fuji II LC, GC) and self-adhering flowable composite resin (Vertise Flow, Kerr). Flat and smear layer–free dentin surfaces from 48 extracted molars were prepared and divided into four groups (n = 12 per group) according to Fuji II LC or Vertise Flow and CPP–ACP pretreatment or not. After SBS testing, data were statistically analyzed. The adhesive interfaces were examined by scanning electron microscopy. SBS was significantly affected by CPP–ACP treatment (P < .001) and SA material (P < .05). The interaction of the two factors was not significant. The results suggested that the CPP–ACP pretreatment of the exposed dentin could have a beneficial effect on bonding ability and interfacial integrity of both SA materials so that intimately adapted interfaces were observed in CPP–ACP groups.

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