Dentist Digital
Dentists usually take dental impressions of the mouth for diagnostic purposes and also to design and create various types of dental crowns, dentures and prostheses. A dental impression is nothing but the copy of your mouth. A liquid material in a tray is usually put in your mouth and left inside for a sufficient period so that it solidifies to make an accurate replica of the mouth.
Some parts of the mouth and teeth or the entire mouth may have to be filled with the material to make the impression. The dental impression is almost like the negative image of a person's gums and teeth. This negative mould is then used to fabricate crowns, dentures and other dental prostheses.
To take an impression, a viscous material is poured onto a customized tray and placed on the teeth. The tray is shaped like a horseshoe and it fits the upper and lower teeth and gums. The material sets to become a solid which will retain the shape when it is removed from the mouth. To make dental impressions, polyether, polyvinyl siloxane and sodium alginate are commonly used.
The tray with the liquid is placed on the upper teeth is such a way that it covers the entire dental arch and the roof of the mouth. For the impression of lower teeth the tray must be placed on the floor of the mouth and under the tongue. Both the trays must remain for a sufficient period of time till the liquid sets into an elastic solid material which can then be removed from the mouth.
After the tray is removed it is sent to the laboratory for further processing to produce a dental cast.
A dental impression is usually taken to make mouth guards, crowns, veneers, bridges, dentures, abutments for dental implants, diagnostic study models as well as model for dental record for before and after a particular type of dental treatment.
Needless to say, the entire process of sitting immobile with trays stuck inside the mouth is a very uncomfortable experience for the patient. Now new dental imaging technology is available where a two minute digital scan of a patient's teeth is all that is required to produce a model which can then be used to construct any of the above mentioned items.
The patients will definitely love the new technology because there is no discomfort involved. It is also going to be very useful when it comes to treating children's dental problems.
Annemary is a free lance writer and a health & fitness expert who has been associated with several health care providers across various specialties. Through her articles, Anne wishes to inform and educate public about Dental Implants which will benefit those who are looking for resourceful information regarding health.
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