Dental Materials

Direct Filling Gold   Degassing The heating process which removes the surface gases and ensures a clean surface is known as degassing or desorbing. Degassing removes the surface gases like oxygen, nitrogen, ammonia, moisture or sulfur dioxide which may be present due to improper storage. Direct filing gold may be heated by one of two methods as follows: … [Read more...] about Direct Filling Gold: Degassing, Compaction Methods, and Mechanical Condensation Techniques

Annealing Process: Understanding Its Benefits And Uses The effect associated with cold working (for example, strain, hardening) can be reversed by simple heating of the metal. The process is called annealing. The more severe the cold working the more readily annealing occur. Annealing generally comprises of three stages. Recovery: In the recovery stage, the … [Read more...] about Annealing and Degassing: Understanding Their Process, Benefits

Direct Gold Restorations Gold is malleable. A cast ingot of 15 mm thickness is beaten to the submicroscopic thickness of 15 to 25 µm. This is known as gold foil. Gold foils are made from pure metal by beating and rolling. Beating produces lightweight foils and rolling produces heavy-weight foils Fibrous gold is supplied in the form of sheets about 4 inches square which … [Read more...] about Direct Gold Restorations: Types, Properties, and Applications in Dentistry

Direct Filling Gold Following are the forms of direct gold filing: 1. Foil (Firous gold): Sheet Cohesive Non-cohesive Ropes Cylinders Laminated Platinized. 2. Electrolytic precipitate (Mat gold): Mat gold Mat foil Alloyed. 3. Granulated gold (encapsulated powder gold) "Types Of Direct Filling Gold Used In Restorative … [Read more...] about Direct Filling Gold: Types, Properties, and Applications in Restorative Dentistry

Biophysics Applications In Dentistry Dental material science is a basic science that deals with the physical, mechanical, and biological properties of dental materials. Aims of Dental Material Science: To present the basic chemical and physical properties of dental materials. To provide sound educational background so that the practice of dentistry emerges from an … [Read more...] about Biophysics Applications In Dentistry