Tooth fillings are the repair of the decayed boundaries of a healthy tooth and replace space where decay was present. The most common types of tooth fillings are silver amalgam, composite, gold and fused porcelain.
Amalgam Filling – Pros and Cons
Amalgam is a silver material composed of a mixture containing liquid mercury and silver-tin alloy powder. Amalgam fillings are self-sealing and durable but may cause an allergic reaction for some individuals due to its metal components. They also require the removal of healthy tooth structure for the amalgam material to be able to adhere to the tooth. The minimum depth of an amalgam filling is a millimeter and a half and must be at least this depth to avoid cracking.
The verdict
Amalgam has a poor esthetic since it becomes darker over time and can stain the tooth. Amalgam fillings require undercuts within the cavity preparation to avoid dislodging, therefore, making the area larger than necessary.
Composite resin – Pros and Cons
Composite resin is a material composed of microscopic glass and porcelain particles embedded in an acrylic matrix which is hardened by exposure to blue light. The blue light causes the acrylic fluid to harden once the dentist has had time to shape the filling. Composite fillings not only look natural and indistinguishable from the natural tooth but are stronger and provide better results especially when placed on large biting surfaces.
The verdict
Composite fillings are the best restoration for conserving tooth structure and maintaining an appealing esthetic. There is a remarkable difference between a mouth full of amalgam fillings and one with composite fillings as seen in the picture.
Other types of fillings
When it comes to dental fillings, your choice isn’t limited to amalgam o composite resin fillings, but you have a few more types took at before you make a final choice.
Ceramics
Ceramics are made of porcelain. These fillings are strong and resistance to stains. Unfortunately, they are more abrasive than composite resin. This material lasts for a very long period but costs a lot, almost as much as many gold costs.
Glass ionomer
This dental fillings material is made of acrylic and glass. This is an excellent choice for those who need filling under the gums. They are also great for kids. This unique filling material releases fluoride. For this reason, it’s an excellent choice to stop further decay. Despite its advantages, this material isn’t perfect for everyone. It’s weaker and lasts only for a few years.
Take your time to decide the filling you need
Many patients get amalgam fillings and later want to replace them with composite fillings, but this becomes more expensive and intrusive. There is a high risk when constantly replacing fillings because the nerve of the tooth can get damaged resulting in a root canal or extraction. The best thing to do is to discuss with our doctor at 7 Day Dental which option would be best and which would allow the best possible restoration with minimal destruction of the natural tooth.
Dr. Chuck Le
President of 7 Day Dental
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