Amalgam Materials

Silver amalgam is used to repair teeth because it is strong and long lasting, but it is not permanent. It withstands the pressure exerted with normal chewing. It can be added into the cavity hole and shaped to feel natural. It is a relatively inexpensive treatment and can be completed in a single visit. Its dark colour, however, often limits it to molars. In addition, sensitivity is a side effect and some new research suggests that silver amalgam may release mercury into your system.

 

Glass Ionomer Fillings

One of the biggest benefits to this material is that it can be placed all in one step to save time. This type of filling is considerably less expensive and can even be mixed with fluoride to help prevent further decay of the tooth. Ionomer was once a common material. However, its strength is its biggest downfall. Studies are currently being undertaken to test this type of filling to find out how much pressure it can withstand and how long it lasts. This variety also costs significantly more than traditional amalgam treatments.

 

Composite Material

The dentist may choose composite fillings for your front teeth. Since this material is made of a type of plastic, it cannot withstand the rigors and wear of molars. Once the dentist has removed the decayed portions of the tooth, he or she coats the inside of the tooth with glue. From there, the oral care professional will apply several layers of liquid plastic that are then cured with a special light. Once there is enough composite resin to fill the hole, the plastic will be shaped and polished.

This type of treatment can generally be completed in one appointment. They also cost less than gold material treatments and look completely natural. Unfortunately, they don't last as long as gold or amalgam and they cost more than amalgam. In addition, further decay around and underneath the resin is more likely.

Porcelain Treatments

This material is hard and brittle on its own, but when mixed with metal, it creates a strong and natural looking filling. This popular treatment is made by a special lab and can be used to repair any teeth. Without the metal included in the mixture, however, it is restricted to teeth that will not have a large amount of pressure or wear. Because they are made in a dental lab, they require at least two appointments and are more expensive than other versions.

The dentist will consider the advantages and disadvantages of each of these materials. Some look better than others and are more expensive while others are not aesthetically pleasing, but are economical and long lasting. In the end, professionals will select the option that best meets your needs -- one that can withstand the force it will be under, fits into your budget, and look great.