Conservation of mass for a chemical that is transported (fig. 1) yields the advection-reaction-dispersion (ARD) equation:
Your dentist may also place a temporary crown while the permanent one is being made. Types of Dental Crowns. There are four different types of dental crowns. Ceramic â These are used for restoring front teeth, and are popular in this area for their ability to blend with your natural tooth color. The crown is made of a porcelain-based material.
Morgan, In case of dentures, to make denture bases acrylic is used and denture teeth which are used are made of acrylic resin, modified acrylic resin, porcelain or composite resins. Denture teeth can't be compared to enamel of real teeth. Wear resistance of denture teeth and natural teeth is different.