Things About Modern Tooth Fillings

about modern tooth fillingsDental fillings are perhaps the most common restorations placed in adult teeth, and chances are, you or someone you know has one. They are used to treat cavities, which are holes that form in teeth due to the spread of tooth decay, and until relatively recently, fillings have been largely comprised of metal amalgam. Today, modern tooth fillings are still highly common, though they are also more effective and visually-appealing than their previous metal versions.

Today’s Tooth-Colored Dental Fillings

  • Many patients understand the purpose of a dental filling, but may not understand exactly how it accomplishes its purpose. A filling “fills” the cavity, or hole, that tooth decay leaves in your tooth, reinforcing its structure and sealing the interior away from infectious bacteria.
  • For over a century, metal amalgam has been the most-often used filling material, due mainly to its strength and durability. Amalgam contains a mixture of metals, including copper, silver, tin, and mercury, as well as other trace metals.
  • The amount of mercury in most metal fillings is minimal; however, amalgam can still be harmful to your teeth, due to metal’s penchant for changing shape in extreme temperatures.
  • Made from tooth-colored composite resin instead of metal, modern tooth fillings are designed to look as good as they function. The acrylic resin can be tinted to match the color of your teeth so they don’t contrast with your smile’s appearance.
  • A resin filling, which is applied as a liquid, conforms precisely to the shape of your tooth’s cavity, and can be bonded to the tooth’s natural structure. Once hardened, the resin will not change shape no matter how hot or cold your food and beverages are.


Dr. Bob Jing has served patients and their families across Dallas/Ft. Worth for many years. Together with his caring, compassionate, and highly-skilled team at 7 Day Dental, Dr. Jing is dedicated to making good dental health available to as many people as possible. To learn more, or to schedule a consultation or appointment, contact our office closest to you at 817-405-2001 on Jacksboro Highway, or at 817-405-0195 on Seminary Drive.