The enamel surface appearance after the use of glass ionomer cement and a diacrylate resin for orthodontic bracket bonding was compared in an in vivo test using scanning electron microscopy and an enamel surface index system. Significant alterations in the enamel surface were found irrespective of the bonding procedure. The use of glass ionomer cement resulted however in a somewhat less affected enamel surface compared to the acrylate resin.
Acid Etching, Dental Acrylic Resins