Objectives: The study compared the effects of different remineralization procedures on the surface roughness of teeth, enamel surface morphology, shear bond strengths (SBS), and (ARI) scores using self-etching primer (SEP) to bond orthodontic brackets to previously treated demineralized enamel surfaces.
Materials and method: 90 extracted human premolar teeth were divided into six equal groups, Group I being control and remaining five experimental groups. Remineralization procedures were performed by using casein phosphopeptide-amorphous calcium phosphate, fluoride, a microabrasion mixture (18% hydrochloric acid-fine pumice), and resin infiltration in respective groups before bonding. Bonding
was done using a self-etching system. The specimens were tested for SBS and ARI scores were obtained. The roughness and morphology of the enamel surfaces were analyzed and compared using profilometer and scanning electron microscopy.
Results: The highest SBS value was found in Group I (5.76 ±1.57), followed by Group V (0.87±0.67) and the least strength was exhibited by Group II (0.43±0.17.MPa). No significant differences were found between groups for ARI scores. The differences in the roughness values were statistically significant among the demineralized and remineralized groups.
Conclusion: Remineralization procedures like CPP-ACP and microabrasion increased the SBS of orthodontic brackets and decreased surface roughness caused by enamel demineralization
Impact Factor
2022: 6.012
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