Accession Number : AD1030078

Title :   Effect of a New Surface Treatment Solution on the Bond Strength of Composite to Enamel

Descriptive Note : OSTP Journal Article,03 Jun 2016,03 Jun 2016

Corporate Author : Air Force Postgraduate Dental School Lackland AFB United States

Personal Author(s) : Yang,Tungshu ; McMahon,Shawn ; Townsend,Richard ; Vandewalle,Kraig S

Full Text :

Report Date : 01 Jun 2016

Pagination or Media Count : 17

Abstract : Clean and Boost (Apex Dental Materials) is a novel surface treatment solution designed to be used in place of phosphoric acid to increase the bond strength of self-etch adhesives to enamel and more effectively remove contaminants (e.g., handpiece lubricant) from the tooth surface. Simplicity (Apex Dental Materials) is a self-etch bonding agent with acidic monomers that reportedly eliminates concerns about bonding to enamel. The purpose of this study was to evaluate the effect of surface exposure, surface treatment, or bonding agent on the bond strength of composite to enamel. The crowns of 120 bovine incisors were mounted. For surface exposure, half of the specimens were exposed to the water spray of a high-speed handpiece after cleaning/lubrication with an automatic handpiece system and the other half had only water spray. For surface treatment, one third of the specimens were etched with 34% phosphoric-acid gel, one third were treated with Clean and Boost, and one third were untreated. Self-etch bonding agents(Simplicity or Clearfil SE Bond, Kuraray) were applied and light cured. Composite was placed into a mold and light cured (n=10). The specimens were stored in water for 24 hours at 37C and tested in shear. Data were analyzed with a 3-way ANOVA/Tukeys to evaluate the effects of surface exposure, surface treatment, or bonding agent on the bond strength of composite to enamel (alpha=0.05). A significant difference was found based on surface treatment (p=0.023),or bonding agent (p0.001), but not on surface exposure (p=0.057) with no significant interactions(p0.21). Phosphoric-acid etch resulted in greater bond strength than no surface treatment. The use of Clean and Boost was not significantly different from phosphoric acid or no treatment. Simplicity had significantly lower bond strengths to enamel than Clearfil SE Bond. Handpiece spray exposure had no significant effect on bond strength to specimens.

Descriptors :   DENTAL MATERIALS , adhesive bonding , adhesives , monomers , PHOSPHORIC ACIDS

Subject Categories : Adhesives, Seals and Binders
      Medical Facilities, Equipment and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE