INVESTMENT MATERIALS: A REVIEW
*Dr. Prakhar Khurana, Dr. Romil Singhal, Dr. Samarth Kumar Agarwal, Dr. Rachna Maheshwari,
Dr. Beenish Javed and Dr. Kumari Kalpana
Investment casting process is known to its capability of producing clear net shape, high-dimensional accuracy and intricate design. Consistent research effort has been made by various researchers with an objective to explore the world of investment casting. The investment material should be of suitable consistency for adaptation to the wax metal and have a reasonable setting time. To withstand the temperatures required for the casting process there should be no distortion, no decomposition, the investment should not fragment or disintegrate under the impact of molten metal; material should be porous to allow the escape of air and gases and the investment should be easily removed from the casting after cooling. Success in dental casting restorations for fixed partial(FPDs) on the casting procedure. The goal of a prosthodontist is to provide the patient with restorations that fit precisely. Regardless of the alloy used for casting, the casting technique should yield a casted alloy, which should possess sufficient mass, surface hardness and minimal porosity after casting. So, this review article aims to discuss different investment materials available with recent modifications.
Keywords: Gypsum bonded, phosphate bonded, casting.
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