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Journal of Cardiovascular Disease Research

2021, Vol: 8, Issue: 8
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    LINEAR DIMENSIONAL CHANGES IN ACRYLISED MAXILLARY AND MANDIBULAR COMPLETE DENTURES WITH DIFFERENT ARCH FORMS USING TWO INVESTMENT MATERIALS -A COMPARATIVE IN VITRO STUDY


    DR.MAYANK KAPOOR, DR.ANANYA BHARGAVA , DR.APOORVA BHARGAVA,DR.PRAGYA PATEL ,DR. SWAPNIL SINGH, DR.SHAGUFTA ANJUM
    JCDR. 2024: 240-253

    Abstract

    To investigate linear dimensional changes before and after curing procedure using two investment materials using dental plaster type II (kalabhai) and type III dental stone (kalabhai ) for maxillary and mandibular complete dentures with three different arch forms. Material and Methods:A Comparative in vitro Study conducted in the Department of Prosthodontics in jaipur dental college, Jaipur (Rajasthan ) using conventional poly methyl methacrylate denture base resin without any addition of reinforced fibers.Three pairs of Edentuolous cast of three different arch forms – U (GROUP 1) , V(Group 2), Square (Group 3) for maxilla and mandible were taken (Total 30 pairs) , did the waxup of the teeth onto the arches using a silicone matrix and marking and measuring three reference points to compare the pre - acrylisation and post- acrylisation values for the samples, also compared these results with two different investment material marked as Investment A (Dental Plaster type II ) and Investment B ( Type III Dental Stone ). Results-:Paired ‘t’ Test was done to compare mean values within each group. Student ‘t’ Test was done to compare changes between different arch forms. Using Investment A for maxilla and mandible in U ,V and Square arch had no statistical significance.Using investment B for maxilla and mandible in U, V and Square arch showed statistically significant values.Choice of investment material A or B; has little statistical significance when compared with each other. Arch from has statistically insignificant value if proper processing steps are followed.(P>0.05) Conclusion:Upon comparison of the arches with each other it was found that investment procedure matters more and all possible steps should be taken to control the errors that arise due to the various steps that are involved in the processing of the complete dentures rather than one factor of kind of investment material used.If care is taken in the processing of the dentures and all correct steps are followed, the errors can be greatly reduced.

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    Volume 15 Issue 3

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