A STUDY EVALUATING THE EFFECT OF INVESTING MEDIUM ON THE TOOTH MOVEMENT DURING DENTURE PROCESSING A RESEARCH STUDY

The tooth movement occurs during denture processing. Understanding the tooth moving factors helps one to minimise the artificial tooth movements for harmonious occlusion.

Purpose: this study was conducted to evaluate the effect investing mediums on the tooth movement during denture processing.

Materials and methods: Thirty maxillary dentures made in heat cured acrylic resin were randomly grouped depending on the investing medium used- P-P-P group and P-S-P group. The transverse and anteroposterior distances were measured by digital calliper before and after denture processing. The magnitude of tooth movement was determined by difference between final and initial values.

Results: the tooth movement was significantly higher in plaster-stone-plaster group than that of plaster-plaster-plaster group. Anteroposterior tooth movement was significantly higher than transverse tooth movement in both the groups.