Dental cement

Dental cements are hard, brittle materials formed by mixing powder and liquid together. They are either resin cements or acid-base cements. In the latter the powder is a basic metal oxide or silicate and the liquid is acidic. An acid base reaction occurs with the formation of a metal salt which acts as the cementing matrix. Dental cements are used for a variety of dental and orthodontic applications, including use as luting agents, pulp-protecting agents or cavity-lining material. Furthermore, they are used to form an insulating layer under metallic or ceramic restorations, and protect the pulp from injury. This helps in sealing or fixing and casting inlays, onlays, or any such substance to both dentin and enamel.[1] Dental cements that contain an acid component may have an intense sour taste.

Composition and classification

ISO classification Cements are classified on the basis of their components. Generally, they can be classified into categories:

Cements can be classified based on the type of their matrix:

Requirements

The requirements for dental cements are that they should:

Allergy

Dental cement liquids may contain Balsam of Peru, to which some people are allergic.[3][4][5]

References

  1. "dental cement". definition of dental cement. The Free Dictionary by Farlex. 2007. Retrieved 2008-08-11.
  2. {{cite web According to ISO 9917-1:2007 Dental cements classified as: a. Luting cements b. Bases or lining C. Restoration | last =Spiller | first =Martin S. | title =Composite materials | publisher =Doctorspiller.com | date =2000 | url =http://www.doctorspiller.com/dental_materials.htm#Resin%20(Composite)%20Cements | accessdate =2008-08-11 |archiveurl =http://web.archive.org/web/20080730030225/http://www.doctorspiller.com/dental_materials.htm#Resin%20(Composite)%20Cements |archivedate =2008-07-30}}
  3. Alexander A. Fisher. Fisher's Contact Dermatitis. Retrieved 2014-04-27.
  4. "Balsam of Peru contact allergy". Dermnetnz.org. 2013-12-28. Retrieved 2014-04-27.
  5. Sharon E. Jacob, MD (2014-04-15). "Myroxylon Pereirae (Balsam of Peru)". The Dermatologist. Retrieved 2014-04-27.

3. Acid-base Cements (1993) A. D. Wilson and J.W. Nicholson

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