If you need a filling to treat a cavity or cavity today, your dentist will likely recommend composite fillings. Composite fillings are metal-free dental fillings made from a mixture of plastic and glass. They are made from a dental material known as composite resin that can be customized to match your natural tooth color. Although they have a shorter lifespan than amalgam (metal) fillings, composite fillings last for about 5-7 years. Generally, the life of a composite filling between 5-7 years is normal, but we see that it lasts much longer.
Many patients prefer composite fillings to amalgam because the restorations are tooth-colored and do not impair the smile as distinctly dark metal ones do. Additionally, composite fillings do not contain mercury, which is important for some patients as it has mercury-toxic properties. However, in the past there have been some questions about the durability of composite fillings, so patients may have been reluctant to consider this option for large fillings and teeth with a large chewing surface that will be subject to repeated stress. Fortunately, composite filling materials have improved significantly in durability in recent years, allowing your dentist to use this option in a variety of decay scenarios.
In fact, composite fillings have other advantages besides durability and aesthetic benefits. They adhere better to biological enamel, so your dentist doesn’t need to drill as much of an area to place the filling as with amalgam fillings. It benefits the patient when healthier enamel can be preserved and helps the tooth stay stronger in the future. In addition, composites do not expand and contract with temperature changes like amalgam, so the composite filling is less likely to crack or break due to extreme cold or heat.
The process of getting a composite filling is very similar to getting an amalgam. The decayed tooth material is removed with a punch and the composite is prepared in the office. While it is not the exact color of your biological enamel, it can be changed to be as close to the teeth as possible. After the filler is placed, it is fixed with a special light. The entire process is usually completed in an hour or less.
In addition to being more attractive than dark amalgam fillings, tooth-colored composite restorations are highly durable and can withstand strong chewing forces.
Factors Affecting the Durability of Composite Fillers
.Oral hygiene habits: Oral hygiene habits also play a role in the permanence of composite fillings. Composite fillings are more likely to stay firmly attached to healthy tooth enamel, and surrounding areas of decay can cause problems. Regular brushing and flossing is necessary to prevent damage to the filling or decay around the filling. Brushing twice a day and flossing once a day reduces the amount of bacteria in the mouth and reduces the risk of developing cavities.
.Diet: While composite fillings are durable, there are certain nutrients that can cause them to wear more and even get damaged. It is recommended that you avoid overly hard or chewy foods to protect your composite filling. Some things to look out for include hard candies, dried fruits, gummy foods, nuts, and ice. Although these foods do not immediately damage the filling, continuous eating may cause the filling to wear out more quickly.
.Bruxism: Bruxism is the dental term for grinding or clenching the teeth. Teeth grinding is a side-to-side motion that rubs the upper and lower teeth together. Clenching is excessively hard biting, so the upper and lower teeth are under constant pressure. Both behaviors usually occur at night without your awareness and can damage both your natural teeth and composite fillings. If your dentist notices signs of bruxism, they may recommend wearing night guards to prevent damage to your teeth. Night guards can also protect your composite padding and prevent it from premature damage or wear.
