Dentists use various tooth filling materials depending on the type of cavity that needs to be filled. For example, dentists frequently use a tooth-coloured filling for front teeth. Each type of filling has its own set of advantages and disadvantages.
Direct Fillings (done inside the mouth in a single visit):
Silver Amalgam Fillings: Silver-coloured amalgam fillings are a mixture of metals, including roughly 50% mercury, silver, tin, and copper. It is the cheapest tooth filling material, and it’s also the easiest to use. It is also the most durable, which is why it is frequently employed on stress-bearing surfaces.
Amalgam restoration is an excellent choice for large or deep cavity fillings. One obvious disadvantage is that metal cavity fillings are ugly and are therefore rarely used on front teeth. Some people also avoid amalgam fillings due to worries about mercury exposure.
Resin Composite Fillings: A blend of acrylic resin and powdered glass is used to make composite resin fillings. The resin-based composite material is coloured to closely match your natural tooth colour, making the filling barely noticeable.
This dental filling material, however, is not as long-lasting as a silver filling. As a result, composite restoration may not be suitable for deep fillings or those on biting surfaces. It’s also more technically challenging to apply, so it takes a little longer.
Glass Ionomer Fillings: Glass ionomer fillings are another option for white fillings. It’s usually utilised for temporary fillings, such as for children‘s baby teeth, because it isn’t as durable as composite resin fillings.
Since it doesn’t require a dry surface to bond to, it can also be used to fill decayed areas on teeth roots below the gum line. Glass ionomer also releases fluoride, which aids in the prevention of decay.
Indirect Fillings (made outside of the mouth, typically in a dental laboratory, and requiring two dental visits)
Porcelain Fillings: Porcelain or ceramic fillings are tooth-coloured restorations that closely resemble natural teeth in function and appearance. Porcelain and real teeth are nearly identical in colour. These fillings are also more durable than composite fillings and are less likely to fracture. They’re perfect for those who desire a long-lasting repair that also looks good.
Gold Fillings: Gold fillings are the strongest indirect fillings. They protect dental cusps that have been damaged by trauma, decay, or deep cavities. Gold fillings, unlike composite and porcelain fillings, are not cosmetically pleasing. They are, however, more durable and less prone to damage.
The type of filling that is best for you is determined by the severity and location of the dental decay, the amount of sound tooth structure that remains, the cost, and your insurance coverage.