Dental impression
Dental Impression
A Dental Impression (/dɛntəl ɪmˈprɛʃən/) is a negative imprint of hard (teeth) and soft tissues in the mouth from which a positive reproduction (cast or model) can be formed. It is used in dentistry to accurately record the patient's dental structure for the production of dental prostheses, orthodontic appliances, mouthguards and other dental restorations.
Etymology
The term "Dental Impression" is derived from the Latin words "dens" meaning tooth, and "impressio" meaning a pressing in.
Procedure
The procedure involves the use of a container (tray) filled with a soft, pliable material such as alginate or polyvinyl siloxane. The tray is placed over the teeth, and once the material hardens, it forms a mold of the teeth and gums. This mold can then be used to create a plaster model of the teeth, which can be used in the planning and construction of dental restorations.
Related Terms
- Alginate: A material commonly used in dental impressions.
- Polyvinyl Siloxane: A type of silicone used for dental impressions.
- Dental Prosthesis: An artificial device to replace one or more missing teeth.
- Orthodontic Appliances: Devices used to correct malocclusion and other dental irregularities.
- Mouthguard: A protective device for the mouth that covers the teeth and gums.
External links
- Medical encyclopedia article on Dental impression
- Wikipedia's article - Dental impression
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