Optimising tolerance of non-precious alloy crowns in dentistry

During ancient civilizations, investment casting was made to produce weaponry, jewellery and art castings. Today, because of technological development and exploring its capacity, its applications include turbine blades, medical equipment, firearm components, gears, and many more industrial/scientifi...

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Bibliographic Details
Main Authors: Kumar, S. S. Praneesh, Sevak, R. Jana, Krishnaraj, S., Muthukumaran, V., Prashanth, P., Sidhaarth, K., Sathyanarayanan, S.
Format: Conference Proceeding
Language:English
Subjects:
Castings
Dental alloys
Dental crowns
Medical equipment
Quenching
Turbine blades
Online Access:Get full text
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Summary:During ancient civilizations, investment casting was made to produce weaponry, jewellery and art castings. Today, because of technological development and exploring its capacity, its applications include turbine blades, medical equipment, firearm components, gears, and many more industrial/scientific components with complex geometry. In Dentistry, the process of casting crowns for teeth is also done by investment casting. During casting, there has been variation in dimension of the teeth before and after casting. This is due to Hygroscopic Setting expansion. However, this expansion cannot be prevented. The aim of this paper is to reduce the tolerance of crowns that are cast. To minimise the variations, the quenching technique is introduced in the casting process. This paper represents crowns that are cast and quenched immediately (A), quenched after 10 minutes (B) and quenched after 20 minutes (C)
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0168268