Dental crowns , Treatment - Execudent

Comments: http://goo.gl/7iBFn A crown is a type of dental restoration When a tooth is heavily decayed it may be too weak to survive it is restored by a crown, a tooth may be given a new life, sometimes when a single tooth is lost at front of mouth a simple bridge is made which has wings what are glued to the back adjacent of teeth by dental conduit. THIS RESULTS IN LESS TOOTH BEING DAMAGED BY THE DRILL When Teeth are heavily decayed the greater risk is that a fracture line may go below the margin of the gum and it becomes difficult or impossible for restoration of teeth Crowns may be made from several different materials most common are, gold and porcelain. Gold is strong in thin section and fewer teeth needs to be drilled away before taking fitting the crown. The lab technician finds it easier to use gold as it shrinks less when cast and is easier to polish. Crowns of porcelain shrink when cast and the technician has to estimate this when making the crown. Porcelain is usually always used for the front teeth but may be used for the back teeth. This material can be made to appear very natural though several factors affect this and are outlined below; Some porcelain crowns have metal inside which gives strength and support to the porcelain. This acts as a barrier for light and gives the crown a dull color. On posterior teeth this won't be noticed but in the front of the mouth it can occasionally be a problem as the tooth looks duller than the natural teeth. http://www.execudent.co.uk/treatments/restorative-dentistry/crowns/