Amalgam fillings, often referred to as mercury fillings, have been a common dental restoration material for decades. Composed of a mixture of metals, including mercury, silver, tin, and copper, amalgam fillings are known for their durability and strength. However, concerns about the mercury content have prompted some patients and practitioners to opt for their removal and replacement with alternative materials. The process of amalgam filling removal is a delicate procedure that requires careful consideration and adherence to safety protocols to minimize risks to both patients and dental professionals.
Reasons for Amalgam Filling Removal
Health Concerns:
The primary reason for removing amalgam fillings is the concern over mercury exposure. Although the Australian Dental Association (ADA) asserts that amalgam fillings are safe, some patients and practitioners prefer to eliminate any potential risks associated with mercury exposure, particularly due to fears of mercury toxicity and its potential link to various health issues.
Aesthetic Preferences:
Amalgam fillings are visibly dark and can be conspicuous in the mouth, especially in teeth that are visible when smiling or talking. Many patients prefer the natural appearance of composite or porcelain fillings, which can be color-matched to their teeth.
Structural Concerns:
Over time, amalgam fillings can expand and contract with temperature changes, potentially causing cracks in the surrounding tooth structure. This can lead to the need for more extensive dental work if not addressed promptly.
Allergies:
A small percentage of people may have an allergic reaction to one or more components in amalgam fillings, necessitating their removal.
The Removal Process
The process of removing amalgam fillings involves several steps to ensure safety and effectiveness:
Preparation:
The dental professional will take a detailed medical and dental history to assess the patient's overall health and any potential risks. Appropriate protective measures, such as rubber dams and high-volume suction, are prepared to minimize mercury vapor and particle exposure.
Isolation:
A rubber dam is typically placed in the patient’s mouth to isolate the tooth being treated and to prevent ingestion of amalgam particles. High-volume suction and air filtration systems are also used to capture mercury vapors released during the procedure.
Removal:
The dentist uses specialized tools to carefully remove the amalgam filling in chunks, rather than grinding it down, to reduce the amount of mercury vapor released. This step requires precision and skill to avoid damaging the tooth structure and surrounding tissues.
Replacement:
Once the amalgam filling is removed, the cavity is thoroughly cleaned and disinfected. The dentist then replaces the filling with a suitable alternative, such as composite resin, ceramic, or gold, depending on the patient’s needs and preferences.
Post-Procedure Care:
After the procedure, patients are advised on proper care and any necessary follow-up appointments. They may experience temporary sensitivity or discomfort, which can typically be managed with over-the-counter pain relief and good oral hygiene practices.
Conclusion
Amalgam filling removal is a common procedure driven by health concerns, aesthetic preferences, structural issues, and allergies. While the ADA maintains that amalgam fillings are safe, the desire to eliminate mercury exposure has led to increased demand for their removal. When performed correctly, amalgam filling removal and replacement can improve dental health and patient satisfaction. Contact Risley Street Dental today if you wish to discuss any concerns that you may have regarding amalgam filling removal.
BEFORE & AFTER
