For evaluation of the comfortable zone (Ct) and the most comfortable p
osition (MCP) of the occlusal vertical relation of the mandible, the c
onstant stimuli method with three subjective categories of judgements
was applied in 10 edentulous subjects. The evaluated CZ was stable and
about 3 mm in width. The occlusal vertical dimension (OVD) of the exi
sting dentures was found to be located within the CZ in nine of the 10
subjects.