TOPIC: INSERTION, RELINING AND REBASING🎯 KEY POINTS: 🔹Lost wax technique was first used in casting of alloys by W.H. Taggart (1906).🔹Gypsum-bonded investment material is used for casting gold alloys.🔹Pickling is a method of cleaning gold casting by hot acid solution for several minutes.🔹Phosphate-bonded investment is used for casting metal–ceramic alloys having high-melting temperature.🔹The minimum fineness required for dental solder to be corrosion resistant is 580 fine.🔹Beryllium added to base metal alloys to control oxide formation is a carcinogen.🔹Rounded margins on the casting may be caused by wax which is not…
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