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A Comparison Of Bond Strength Between Direct- And Indirect-Bonding Methods, Brandon James Linn, David W. Berzins, Virendra B. Dhuru, T. Gerard Bradley
A Comparison Of Bond Strength Between Direct- And Indirect-Bonding Methods, Brandon James Linn, David W. Berzins, Virendra B. Dhuru, T. Gerard Bradley
School of Dentistry Faculty Research and Publications
The purpose of this study was to evaluate and compare the shear bond strength and the sites of bond failure for brackets bonded to teeth, using two indirect-bonding material protocols and a direct-bonding technique. Sixty extracted human premolars were collected and randomly divided into three groups. The direct-bonded group (group 1) used a light-cured adhesive and primer (Transbond XT). One indirect-bonded group (group 2) consisted of a chemical-cured primer (Sondhi Rapid Set) and light-cured adhesive (Transbond XT), whereas the other group (group 3) used a light-cured primer (Orthosolo) and adhesive (Enlight LV). Forty hours after bonding, the samples were debonded. …
Bond Strength Of Direct And Indirect Bonded Brackets After Thermocycling, Jacob Daub, David W. Berzins, Brandon James Linn, T. Gerard Bradley
Bond Strength Of Direct And Indirect Bonded Brackets After Thermocycling, Jacob Daub, David W. Berzins, Brandon James Linn, T. Gerard Bradley
School of Dentistry Faculty Research and Publications
Thermocycling simulates the temperature dynamics in the oral environment. With direct bonding, thermocycling reduces the bond strength of orthodontic adhesives to tooth structure. The purpose of this study was to evaluate the shear bond strengths (SBS) of one direct and two indirect bonding methods/adhesives after thermocycling. Sixty human premolars were divided into three groups. Teeth in group 1 were bonded directly with Transbond XT. Teeth in group 2 were indirect bonded with Transbond XT/Sondhi Rapid Set, which is chemically cured. Teeth in group 3 were indirect bonded with Enlight LV/Orthosolo and light cured. Each sample was thermocycled between 5°C and …