Shear Bond Strength of Brackets Adhered to laser-Etch Versus Acid-Etch

Many studies have been done on the shear bond strength of brackets adhered to acid-etched enamel and so far, there is no study on shear bond strength of brackets adhere to laser-etched enamel in Iraq. So, this study is an attempt to compare the shear bond strength of brackets adhered to laser-etched enamel with that of brackets adhered to acid-etched enamel. The application of laser irradiation to etch dental enamel for direct bonding of orthodontic appliance has been studied. CO2 (Carbon Dioxide) laser are capable of producing surface irregularities in human enamel which resemble those resulting from etching of enamel with ortho-phosphoric acid. Whether laser conditioning improves the retention of composite resins to the same degree as conventional acid-etching techniques has been the subject of several investigations.

Autorentext

Dr.Hakam husham sabah Alfaqheri has obtained his B.sc study from university of Mosul in 1996 and master degree in orthodontics from university of Baghdad in 2001.from 2003-2009 Assistant Lecturer in the Faculty of Dentistry University of Mustansiriy.Lecturer in the University of Mosul in 2009 and up to now(in charge of clinics for fifth grade)