Teeth that have been affected by tooth decay (caries or cavities) might require a filling or other treatment. Advances in dental materials and techniques provide new, effective ways to restore teeth.
There are several different types of restorations, including:
Amalgam fillings have been used for decades, and have been tested for safety and resistance to wear. Dentists have found amalgams to be safe, reliable, and effective for restorations.
Glass ionomers are tooth-colored materials made from fine glass powders and acrylic acids. These are used in small fillings that do not have to withstand heavy pressure from chewing. Resin ionomers are made from glass with acrylic acids and acrylic resin.
For an indirect restoration, a dentist may use an all-porcelain, or ceramic, application. This material looks like natural tooth enamel in color and translucency. Another type of indirect restoration may use the porcelain that is fused to metal, which provides additional strength. Gold alloys are used often for crowns or inlays and onlays. Less expensive alternatives to gold are base metal alloys that can be used in crowns and are resistant to corrosion and fracture. Indirect composites are similar to those used for fillings and are tooth-colored, but they are not as strong as ceramic or metal restorations.
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