Abstract A study was conducted on 35 edentulous patients in which two centric relation recording procedures were evaluated to determine the influence of variables on their duplicability. In the wax recording procedure, the consistency of the recording wax, its degree of hardness, its degree of bilateral homogeneity, the amount of occlusal contact, and the presence or absence of anterior freedom influenced duplicability to a significant level. In the intraoral (needle-point) tracing procedure, the location of the central bearing point, anteriorly, posteriorly, or laterally, the inclination of the central bearing point in relation to the tracing plate (whether it be perpendicular or mouted at an angle to it), and the inclination of the tracing plate in relation to the underlying bearing surfaces played an important part in determining the duplicability of the records. Heavy closing pressure adversely influenced the duplicability of the recordings under these conditions. It is recommended that centric relation records be made with accurately fitting baseplates under minimal pressure that is centralized and distributed uniformly to the underlying denture bearing areas (basal seat).