title: Effect of EDTA Conditioning and Carbodiimide Pretreatment on the Bonding Performance of All-in-One Self-Etch Adhesives.
abstract: Objective. This study evaluated the effect of ethylenediaminetetraacetic acid (EDTA) conditioning and carbodiimide (EDC) pretreatment on the shear bond strength of two all-in-one self-etch adhesives to dentin. Methods. Flat coronal dentin surfaces were prepared on one hundred and sixty extracted human molars. Teeth were randomly divided into eight groups according to two different self-etch adhesives used [G-Bond and OptiBond-All-In-One] and four different surface pretreatments: (a) adhesive applied following manufacturer's instructions; (b) dentin conditioning with 24% EDTA gel prior to application of adhesive; (c) EDC pretreatment followed by application of adhesive; (d) application of EDC on EDTA conditioned dentin surface followed by application of adhesive. Composite restorations were placed in all the samples. Ten samples from each group were subjected to immediate and delayed (6-month storage in artificial saliva) shear bond strength evaluation. Data collected was subjected to statistical analysis using three-way ANOVA and post hoc Tukey's test at a significance level of p < 0.05.  Results and Conclusion. EDTA preconditioning as well as EDC pretreatment alone had no significant effect on the immediate and delayed bond strengths of either of the adhesives. However, EDC pretreatment on EDTA conditioned dentin surface resulted in preservation of resin-dentin bond strength of both adhesives with no significant fall over six months.
authors.affiliation: Department of Conservative Dentistry and Endodontics, Kothiwal Dental College and Research Centre, Moradabad 244001, India.
authors.forename: Shipra
authors.initials: S
authors.lastname: Singh
authors.affiliation: Department of Conservative Dentistry and Endodontics, Kothiwal Dental College and Research Centre, Moradabad 244001, India.
authors.forename: Rajni
authors.initials: R
authors.lastname: Nagpal
authors.affiliation: Department of Conservative Dentistry and Endodontics, Kothiwal Dental College and Research Centre, Moradabad 244001, India.
authors.forename: Shashi Prabha
authors.initials: SP
authors.lastname: Tyagi
authors.affiliation: Department of Pediatric Dentistry, Kothiwal Dental College and Research Centre, Moradabad 244001, India.
authors.forename: Naveen
authors.initials: N
authors.lastname: Manuja