Abstract
ِAims: The study aims to record the value of the removal force of heat cure (control group), cold cure and visible light cure with two design (close fit and spaced custom tray) and to compare between these values. Materials and Methods: Five custom trays was constructed for each materials used in this study which is heat cure(control group) , cold cure and visible light cure resin with two design close fit and spaced custom tray and the value of the removal force was calculated by using instron testing ma-chine. Results: The visible light cure custom tray produced less value of removal force when compared with the cold cure and heat cure custom trays and the heat cure custom tray produced a less value of removal force when compared with the cold cure custom trays. The spaced design produced less value in the removal force than the close fit design for each material used in this study. Conclusions: The visible light spaced custom trays produced less value of removal force than the cold and heat cure cus-tom trays. Key word: Visible light cure, Removal force, Custom tray, Bone resorption.
