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There are 3 types of fillings available to restore teeth after decay.

  • Amalgam Fillings - Also know as silver fillings, amalgam fillings have been the standard filling material in the past.  It's composed of mercury, silver, copper, tin and other metals.  They are a tried and tested material to last in the mouth.  However they are unsightly and can expand slightly with temperature changes causing cracks in the teeth.  We recommend leaving a silver filling alone if there are no problems such as cracks or decay.  But we often replace these fillings because patients prefer tooth colored fillings.                                                
  • Composite Fillings -  White fillings or composite fillings are made out of a resin matrix, typically bisphenol A-gycidyl methacrylate (BISMA) with silicon dioxide fillers.  The main advantage is that they are more aesthetically pleasing than silver fillings. They bond to the teeth and are good restorations for smaller areas of decay.  Instead of expanding over time, they can shrink.  They are more technique sensitive in that they require the surface to be dry before placing.  We place these fillings where small areas of decay were located.                                                                             
  • Porcelain Fillings - We also give patients the option of porcelain fillings or onlays.  Cerec or CAD-CAM technology is used to produce these fillings.  Patients are given the option to have these upgraded fillings to restore medium to large areas of decay.  We don't recommend them for small fillings.  They cost slightly more, but last longer and do not expand or contract as the others do.  Overall they decrease the chance of needing a root canal.