Objectives: The aim was to evaluate the demineralization around and beneath the orthodontic brack... more Objectives: The aim was to evaluate the demineralization around and beneath the orthodontic brackets using 4 adhesive systems and bonding methods. Methods: 80 human molars were randomly divided into 2 groups according to bonding methods (A=enamel around the brackets were kept from contamination of adhesives;B=adhesives were spread over the enamel surface like clinical bonding conditions) and each one was divided into 4 sub-groups. Groups were; 1.Clearfil Protect Bond(CPB)+Transbond XT Light-Cure Adhesive(TXT), 2.GC ORTHO Conditioner+Fuji Ortho LC Capsule, 3.Transbond Plus Self-Etching Primer(TPSEP)+TXT, 4.37% phosphoric acid+Transbond XT Primer+TXT. Additional untreated enamel control group (n=10) was also formed. Thermal and pH-cycles were applied to all experimental specimens. Teeth were sectioned and one of the sections was randomly selected for quantitative elemental analysis with energy dispersive x-ray spectroscopy(EDS). Calcium loss was analyzed at occlusal and cervical (0.5m...
Objectives: The aim was to evaluate the demineralization around and beneath the orthodontic brack... more Objectives: The aim was to evaluate the demineralization around and beneath the orthodontic brackets using 4 adhesive systems and bonding methods. Methods: 80 human molars were randomly divided into 2 groups according to bonding methods (A=enamel around the brackets were kept from contamination of adhesives;B=adhesives were spread over the enamel surface like clinical bonding conditions) and each one was divided into 4 sub-groups. Groups were; 1.Clearfil Protect Bond(CPB)+Transbond XT Light-Cure Adhesive(TXT), 2.GC ORTHO Conditioner+Fuji Ortho LC Capsule, 3.Transbond Plus Self-Etching Primer(TPSEP)+TXT, 4.37% phosphoric acid+Transbond XT Primer+TXT. Additional untreated enamel control group (n=10) was also formed. Thermal and pH-cycles were applied to all experimental specimens. Teeth were sectioned and one of the sections was randomly selected for quantitative elemental analysis with energy dispersive x-ray spectroscopy(EDS). Calcium loss was analyzed at occlusal and cervical (0.5m...
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