Casting Machines In Dentistry Write a short note on casting the crucible. Answer: The crucible is heat resistant container in which alloy is melted before casting. There are four types of casting crucibles, i.e. Clay, carbon, quart, and zirconia-alumina. Clay crucibles are used for high noble and noble type alloys while carbon crucibles are used for high noble … [Read more...] about Casting Machines In Dentistry
Types Of Casting Defects
Types Of Casting Defects Define casting defects. Classify and enumerate in detail the different types of porosities and their causes. Answer: A casting defect is an irregularity in the metal casting process that is very undesirable. Classification and Enumeration of Different Types of Porosities: 1. Those caused by solidification shrinkage: Localized shrinkage … [Read more...] about Types Of Casting Defects
Dental Bur Rake Angle
Dental Bur Rake Angle Write a short note on the rake angle. Answer: Each bur blade has two sides, the rake face and clearance face, and three angles, rake angle, edge angle, and clearance angle. The rake angle is the most important design characteristic of a burred blade. The rake angle is the angle between the rake face and the radial line. The rake angle … [Read more...] about Dental Bur Rake Angle
Dental Alloys: Types, Properties, Applications
Dental Alloys: Types, Properties, Applications Write a short note on the Properties of Gold Alloy. Answer: Properties of Gold Alloy: Gold Alloy Color: The color of modern gold alloys can vary from gold to white. Color depends on the amount of whitening materials. Gold Alloy Melting Range: It is 920 to 960°C. The melting range indicates the type of investment … [Read more...] about Dental Alloys: Types, Properties, Applications
Role Of Abrasives In Dentistry
Role Of Abrasives In Dentistry Abrasion: It occurs when a hard rough surface slides along a softer surface and cuts a series of grooves. The wearing away of a substance or a structure through a mechanical process such as grinding, rubbing, or scraping. Polishing: It is the production of a smooth mirror-like surface without much loss of an external form. If the particle size … [Read more...] about Role Of Abrasives In Dentistry