Ask the Dentist!
What are My Choices for Fixing Cavities?
Many adults grew up with “silver” fillings used to fix cavities as a child. Although these type fillings are still available, there are alternative options to restore teeth. Fillings that match the color of teeth, fillings that release fluoride to help protect against forming new cavities and no filling at all. Each type has its pros and cons and are important to know to make the right restorative decision for you.
Amalgam
Amalgam is the “silver” filling material which you have likely seen or have in your mouth. It is a mixture of mercury, copper, tin, silver and small amounts of other metals that when combined form the solid material used as a filling. These types fillings are very durable and typically last a very long time. Most patients these days do not prefer amalgam due to the color and mercury within the filling. Most government agencies have deemed amalgam safe despite containing mercury.
Resin composites
These type fillings are known as “white” fillings or tooth colored fillings. These filling seem to do very well in front teeth and are acceptable for back teeth. Although they handle chewing forces as well as amalgam without cracking, they tend to not last as long as silver filings. Placement requires the area be free of blood and saliva making them much more technique sensitive to place. They are most popular in front teeth because the color can be matched to natural teeth.
Glass Ionomers
These fillings are another type of tooth colored filling with the advantage of releasing small amounts of fluoride to help prevent decay. Glass ionomers are not nearly as durable as resin or amalgam and tend to wear rather quickly when placed on back teeth used for heavy chewing. They preform very well on root surfaces that are susceptible to decay. They typically do not match natural tooth color as well as resin.
Silver Diamide Fluoride
Some very small cavities can be managed with silver diamide fluoride (SDF), which can be painted directly onto the cavity. SDF can slow the progression of a cavity but will not repair the working surface of the tooth. It is often used in baby teeth to help control the decay process until the permanent teeth come in.
Porcelain
Although not usually the main treatment option for restoring cavities, porcelain has the advantage of durability like amalgam and color matching natural teeth, like resin composites. Using porcelain usually requires more than one appointment and is more costly than other filling materials. However, it is a very good treatment option.
Before your next filling, discuss with your dentist your options to decide what best suites you.