Fabricatory process of complete dentures has passed through contrasting facets. Impressions and articulators have influenced the science of complete dentures tremendously, and those have marked the first signs of effective integration of both clinical and laboratory procedures. Centric relation is a position of the mandible which is easily identified clinically by the operator and can be achieved repeatedly by the patient. It is not a feasible suggestion to ascertain the centric position routinely through radiographs. Graphic tracings using intraoral tracers has become relevant in this context.

CHANDRA TRACER : This is an intraoral tracer which has a two component assembly. The upper bearing plate has a pencil holder and the lower bearing plate has a central bearing screw and tracing platform of dimensions 35 x 47 mm, which has a facility to hold a drawing sheet. A sharp pencil is attached to the upper component.

The upper plate is attached flush with the occlusal plane and the lower bearing plate is fixed 3mm below the occlusal plane providing space for the interocclusal record. The tracer is placed in the mouth and the tracings are recorded on the paper fixed to the table. After many repetitions, the best tracing is selected, and the centric and protrusive plaster records are obtained using quick setting plaster. Plastic sheets are used for stabilisation during the recording.