What is amalgam creep?
What is amalgam creep?
Creep. Creep in dental amalgams refers to the gradual change in shape of the restoration from compression by the opposing dentition during chewing or by pressure from adjacent teeth. It was a phenomenon associated with the gamma-2 phase seen with low-copper alloys (about 6%) and resulted in deterioration of the margins …
What is amalgam restoration?
Amalgam Restoration Amalgam restorations have been used to restore decayed and damaged teeth for over 150 years. Most people refer to amalgam fillings as ‘silver’ fillings because of their color when first place.
What is amalgam Trituration?
Trituration The mixing of amalgam alloy particles with mercury in a device called a triturator ; the term is also used to describe the reduction of a solid to fine particles by grinding or friction.
Do dentists still use amalgams?
Currently, there are millions of amalgam dental fillings in use and they continue to be placed in dental schools, clinics and hospitals all over the world. They are considered safe and stable, yet their use continues to be debated, says dentist Nathan Janowicz, DMD.
What does creep mean in dentistry?
ply throughout (creep: the progressive de- formation. of a metal under load, usually at elevated temperatures), although sag is per- haps the more graphic term to apply to den- tal prostheses. The importance of the creep properties of. porcelain-gold alloys in dental restorations.
What is amalgam used for?
Amalgam is one of the most commonly used tooth fillings, and is considered a safe, sound, and effective treatment for tooth decay.
How do you do amalgam restoration?
Load the amalgam carrier with amalgam from the well; place the amalgam into the occlusal segment of the prepared cavity. Begin condensation using a small condenser to condense a portion of the amalgam into the proximal box area. Place pressure and condense into all line angles, as well as against the matrix band.
Why do we Triturate amalgam?
Mechanical Trituration. The objective of trituration is to provide proper amalgamation of the mercury and alloy. There is always an oxide layer of the alloy surface that hinders diffusion of mercury into the alloy.
How long do you Triturate amalgam?
Mixing (trituration) The mixing time must be individually adapted to any device. Frequently it is 5 – 10 seconds. The ideal mixing time will result in a silvery, shiny amalgam ball that will completely and cleanly detach from the capsule shell.
Are white fillings better than amalgam?
Modern white fillings are much stronger than those from several years ago. They are also bonded to the tooth to effectively seal the margin. Amalgam fillings just plug the hole and do not seal the margins or reinforce teeth. They are, however, very strong and a well-placed amalgam filling can last for several years.
Should I remove my amalgam fillings?
Should Dental Amalgam Fillings Be Removed? If your filling is in good condition and your dentist or health care professional says there is no decay beneath the filling, removal of your amalgam filling is not recommended.