Comparison of Bond Strength of Metal and Ceramic Brackets Bonded with Conventional and High-Power LED Light Curing Units - Chalipa, Javad; Farajzadeh Jalali, Yasamin; Gorjizadeh, Fatemeh; Baghaeian, Pedram; Hoseini, Mohammad Hashem; Mortezai, Omid (Frontiers in Dentistry, 2017)