Abstract: The present invention is a dental oral simulator designed to teach the skills an operator will require in practice when dealing with a supine patient in the ergonomically preferred work zone in the midsagittal plane at heart level and in myocentric relationship.Training jaws of the dental simulator are supported to simulate the movement of the jaws in a skull about the occipito-atlantal joint. A concave dish supported on the end or a mounting arm provides bearing support for a semi spherical bowl with the attachment between the bowl and the concave dish operating to allow controlled movement of the bowl through the range of useful dental treatment anatomical movements by a human skull about its occipito-atlantal joint with the mounting for the training jaws located on the mandible plane.