Metals Definition of metal: An element or alloy where atomic structure readily loses electrons to form positively charged ions and which exhibits metallic bonding, Opacity, good light reflectance from a polished surface, and high electrical and thermal conductivity. Alloy: Nonwhite metals in the periodic table are gold and copper. With the exception of pure gold … [Read more...] about Metals Notes
Dental Materials
Dental Implants Notes
Dental Implants Definition: Implantation is defined as the insertion of any object in writing such as either partially /completely into the body for therapeutic, Lagosc, pathetic, or experimental purposes. Replantation: Reinsertion of a tooth back into its jaw socket after accidental or intentional removal Transplantation; Transfer of a body part from one site to … [Read more...] about Dental Implants Notes
Gypsum Product
Gypsum Products Products of gypsum are used extensively in dentistry. Gypsum was found in mines around the city of Paris, so it is also called plaster of Paris. This is a misnomer as gypsum is found in most countries. The mineral gypsum CaSO4. 2H2O is usually white to yellowish white in color and is found as a compact mass. Gypsum is also an industrial byproduct. For centuries … [Read more...] about Gypsum Product
Mechanical Properties Of Dental Materials
Mechanical Properties Of Dental Materials Write a short note on flexibility and resilience. Answer: Flexibility: Generally in dental practice, the material used as a restoration should withstand high stresses and show minimum deformation. However, there are instances where a large strain is needed with moderate or slight stress. For example, in an orthodontic … [Read more...] about Mechanical Properties Of Dental Materials
Understanding Passivation In Dental Alloys
Understanding Passivation In Dental Alloys Write a short note on the passivation of metals. Answer: Passivation of metals: Certain metals readily form strong adherent oxide films on their surface which protect them from corrosion. Such metal is said to be passive. Chromium, titanium, and aluminum are examples of such metals. If more than 12 % chromium … [Read more...] about Understanding Passivation In Dental Alloys