Influence of chemical irrigants on the tensile bond strength of an adhesive system used to cement glass fiber posts to root dentin.
OBJECTIVE
The aim of this study was to evaluate the influence of endodontic irrigants on the tensile bond strength of an adhesive system used to cement glass fiber posts to dentin.


METHODS
Fifty bovine roots were divided into 5 groups according to the solution used during instrumentation: G1, 0.9% NaCl (control); G2, 1.0% NaOCl; G3, 2.5% NaOCl; G4, 5.25% NaOCl; G5, 2% chlorhexidine gel + 0.9% NaCl. The root canals were obturated with gutta-percha and AH Plus sealer, and the glass fiber posts were cemented with Clearfil SE Bond/RelyX ARC. The specimens were submitted to tensile strength testing and the results were analyzed by analysis of variance.


RESULTS
There were no statistically significant differences regarding the irrigant solution factor (P > .70).


CONCLUSIONS
It was concluded that the different irrigant solutions did not affect the tensile bond strength of the fixation system used to cement the intraradicular glass fiber posts to dentin.
Pelegrine
Rina Andréa
RA
School of Dentistry, São Leopoldo Mandic Dental Research Center, Campinas, São Paulo, Brazil. rinapelegrine@terra.com.br
De Martin
Alexandre Sigrist
AS
Cunha
Rodrigo Sanches
RS
Pelegrine
André Antonio
AA
da Silveira Bueno
Carlos Eduardo
CE
D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002417:Cattle; D002614:Chelating Agents / Q000737:chemistry; D002710:Chlorhexidine / Q000737:chemistry; D001840:Dental Bonding; D003764:Dental Materials / Q000737:chemistry*; D003786:Dental Pulp Cavity / Q000648:ultrastructure*; D003804:Dentin / Q000648:ultrastructure*; D004492:Edetic Acid / Q000737:chemistry; D004853:Epoxy Resins / Q000737:chemistry; D005898:Glass / Q000737:chemistry*; D006171:Gutta-Percha / Q000737:chemistry; D008422:Materials Testing; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011176:Post and Core Technique / Q000295:instrumentation*; D011897:Random Allocation; D019279:Resin Cements / Q000737:chemistry*; D012387:Root Canal Filling Materials / Q000737:chemistry; D012388:Root Canal Irrigants / Q000737:chemistry*; D018915:Root Canal Preparation / Q000295:instrumentation / Q000379:methods; D012965:Sodium Chloride / Q000737:chemistry; D012973:Sodium Hypochlorite / Q000737:chemistry; D013314:Stress, Mechanical; D013718:Tensile Strength
D002614:Chelating Agents; C438313:Clearfil SE Bond; D003764:Dental Materials; D004853:Epoxy Resins; D011109:Polymethacrylic Acids; C462240:RelyX ARC; D019279:Resin Cements; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; C534916:epoxy resin-based root canal sealer; C009753:fiberglass; D011092:Polyethylene Glycols; D012965:Sodium Chloride; D017438:Bisphenol A-Glycidyl Methacrylate; D006171:Gutta-Percha; D004492:Edetic Acid; D012973:Sodium Hypochlorite; D002710:Chlorhexidine