WHY DOES MY AMALGAM FILLING NEED TO BE REPLACED

Mechanical properties

Large amalgam fillings can weaken tooth structure over time. Amalgam expands and contracts with changes in temperature, which can lead to cracks or fractures in the tooth. In addition, the mechanical properties of amalgam may not provide ideal support for large restorations, which can compromise the integrity of the tooth.

Potential for breakage

Because of their rigidity and lack of adhesion to the tooth structure , large amalgam fillings can increase the risk of tooth fracture , especially in teeth with extensive caries or damage. Fractures may require more extensive dental procedures such as crowns or even extraction in severe cases.

Mercury content

Although the safety of dental amalgam has been extensively studied and is considered acceptable by many health organizations, including the FDA and the World Health Organization, some people are concerned about the presence of mercury in amalgam fillings. Large fillings may contain higher levels of mercury, which may be a consideration for people who prefer alternative materials.

Sensitive padding

Large amalgam fillings adjacent to other metal restorations or dental appliances can create galvanic currents due to differences in electrical potential between the metals. This can cause discomfort, such as a metallic taste, and possibly contribute to corrosion or deterioration of the restorations over time.

Aesthetic concerns

Amalgam fillings are silver in color, which can stand out against the natural tooth color, especially with large fillings. This can be particularly noticeable with teeth that are visible when smiling or talking, which can affect the individual's appearance and self-confidence.