A Comparative Study to Check The Effect Of Three Investing Materials And Different Curing Cycles On Tooth Movement

Abstract

Aim: The purpose of the study was to evaluate and compare the effect of three investing materials and different curing cycles on tooth movement during the processing of simulated maxillary complete denture by compression moulding technique.

Materials and Methodology: This study included 61 (1+60) Maxillary dental stone models of same mould. Temporary record base was fabricated on all 61 maxillary dental stone models. Initially one maxillary model with temporary denture base was taken for ideal teeth arrangement following ideal protocols. This ideal teeth arrangement was duplicated with silicon duplicating material and a mould is obtained. Now by using this mould 60 duplicated teeth arrangement samples was obtained and were assigned randomly into three experimental groups (Group A, Group B, Group C) with equal number of samples (n=20 each).

Results: Comparison of Overall Tooth movement shows minimum tooth movement for Plaster – PlasterStoneMix material (1.92±1.25) and maximum for Plaster - Plaster- Plaster material (2.45±1.51). According to ANOVA test, significant difference was found in mean tooth movement between various materials (p=0.040). Plaster – PlasterStoneMix comes out to be best regarding tooth movement for both long and short curing cycle.

Conclusion: In this study, for overall samples in all three groups Plaster–PlasterStoneMix comes out to be the best investing material. PlasterPlasterStone mix shows minimum tooth movement than other two groups. Overall long curing cycle performs better than short curing cycle.