Thanks to technological advances, dentists and patients today have several choices when it comes to selecting materials to restore cavities in their teeth. Traditional metal or “silver” fillings are still commonly placed in molar teeth.These type of fillings are appropriate under circumstances where restored teeth must withstand extreme forces that result from chewing, such as in the back of the mouth. Composite or Resin fillings that are not only beautiful, but also add strength to weakened teeth.
Advantages of Silver fillings:
The average lifespan of a silver filling is about 10 years but can last in may instances for over 20 years.
They require little maintenance other than regular good oral hygiene.
Silver fillings can be more cost effective and more durable
Much of the concern over the safety of metal fillings arises from the use of mercury. However, when mercury is combined with other materials in a dental amalgam, its chemical nature changes, rendering it virtually harmless. In fact, you are exposed to more mercury in food, air and water than you are when you choose to have an amalgam filling.
Advantages of Tooth-Colored Restorations
Resin onlays are bonded to the teeth creating a tight, superior fit to the natural tooth. Such restorations can be used in instances where much of the tooth structure has been lost. The tooth remains intact and stronger.
Since some resin used in tooth-colored restorations contain fluoride this can help prevent decay. The resin wears like natural teeth.
They can be used on either front or back teeth.
No matter what you decide, the end result is a beautiful smile!