ABSTRACT
This study aimed to evaluate two techniques used for recording ridge height namely the paste technique using radiopaque paste and the wire technique using a wire fixed to the denture. Orthopantographs were made for seventeen edentulous patient. For each patient two exposures were done the first exposure with the radiopaque paste applied directly to the ridge in the patient's mouth [paste technique], the second exposure with the patient rearing complete dentures with metal wires fixed to the fitting surface of the dentures [Wire technique]. The reliability of the results in each technique were also calculated. The data in this study reached to the following conclusions: The past technique should be used for studies of residual ridge height. The wire technique should be limited to studies of denture position and migration