SMART Amalgam Removal
Biological Dentistry
SMART Amalgam Removal
Although amalgam fillings have been used as a standard filling material in dentistry for many years, their removal requires special care due to their mercury content. An improperly performed amalgam removal procedure may release the mercury contained in the filling in the form of vapor and microscopic particles, potentially exposing both the patient and clinical staff to this substance. SMART Amalgam Removal (SMART – Safe Mercury Amalgam Removal Technique) is a set of protective measures developed by the IAOMT (International Academy of Oral Medicine and Toxicology) to minimize this risk and formally established under this name in 2016.
The primary goal of SMART amalgam removal is to prevent, as much as possible, the inhalation or ingestion of mercury vapor and particles released during the removal of amalgam fillings by the patient, dentist, and clinical staff. While a conventional removal procedure involves directly drilling the filling, the SMART protocol combines several protective measures, such as rubber dam isolation, high-volume suction, external oxygen support, air filtration systems, and amalgam separators. This helps control mercury exposure both inside the oral cavity and throughout the clinical environment.
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Who Is It Suitable For?
- Patients whose existing amalgam fillings are cracked, broken, leaking around the edges, or have reached the end of their service life,
- Patients with suspected mercury sensitivity or allergic reactions to mercury,
- Patients who wish to switch to a metal-free, biocompatible smile,
- Patients who wish to reduce the accumulation of toxic substances in the body as part of their general health approach,
- Patients who wish to replace their amalgam fillings with composite or ceramic fillings for aesthetic reasons.
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Who Is It Not Suitable For?
- During pregnancy, particularly in the first three months, amalgam removal should be postponed unless absolutely necessary, as the temporary increase in mercury exposure during the procedure may pose a risk to the expectant mother and baby.
- For patients who are breastfeeding, the dentist should carefully evaluate the timing of the procedure.
- There is generally no urgent indication for removing intact amalgam fillings that are not leaking and do not cause any clinical problems; the decision to remove them in these patients should be evaluated individually.
- In patients with serious systemic conditions or those who are unable to tolerate the procedure, their general health condition must first be stabilized.
Final suitability must always be determined following a dental examination.
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Avantages
- Significantly reduces exposure to mercury vapor and particles released during removal.
- Provides a protective working environment for both the patient and clinical staff.
- Amalgam separator systems prevent mercury from entering the wastewater system, reducing its environmental impact.
- Offers the opportunity to switch to metal-free filling materials that provide a more natural aesthetic appearance.
- Aligns with holistic health goals for patients who embrace the biological dentistry approach.
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Potential Risks
- Even when the protocol is followed fully, short-term exposure to low levels of mercury vapor during the removal procedure may not be completely eliminated.
- Some patients may experience temporary sensitivity, gum irritation, or mild discomfort after the procedure.
- An incorrectly performed “SMART” procedure or one carried out with insufficient equipment may not provide the full protection offered by the standard protocol. Therefore, it is important to have the procedure performed at a certified clinic with experienced staff.
Rarely, individual sensitivity to the new filling material may develop.
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Treatment Process
Examination and Planning: The condition of existing amalgam fillings is evaluated using a panoramic X-ray, and the order and priorities for removal are determined.
Protective Preparation: Protective gowns, goggles, and masks are used for both the patient and clinical staff. The patient is provided with an external oxygen/air mask.
Rubber Dam Isolation: The tooth being treated is isolated from the rest of the mouth using a rubber barrier, preventing particles from being swallowed or coming into contact with other teeth.
High-Volume Suction and Air Filtration: The intraoral suction system and a dedicated room air filtration system operate simultaneously.
Controlled Removal: The filling is divided into small pieces and removed at low speed using a bur with copious water spray. Removing it in larger pieces helps reduce dust formation.
Cleaning and New Filling: The cavity is cleaned and then restored using a biocompatible composite or ceramic material.
Waste Management: The removed amalgam fragments are safely collected using an amalgam separator system and disposed of appropriately.
The removal of a single amalgam filling using the SMART protocol generally takes 30–60 minutes, depending on the size and location of the filling. For patients with multiple fillings, all fillings are generally removed over several sessions rather than in a single appointment. This approach is recommended both for the patient’s comfort and to limit overall exposure. The total treatment period may extend over several weeks, depending on the number of fillings.
Recovery after the procedure is generally quick. Mild sensitivity or temporary sensitivity to hot and cold may be experienced during the first few hours. This is considered normal and usually subsides within a short time. The gum tissue may become mildly irritated due to rubber dam isolation, but this generally resolves on its own within 1–2 days. It may take a few days for the newly placed restorative material to fully harden and adapt to the tooth.
Biological Dentistry
Post-Treatment Care Instructions
ery hot or very cold foods and beverages should be avoided during the first few hours after the procedure. If gum sensitivity occurs, a soft-bristled toothbrush should be used. If recommended by the dentist, drinking plenty of water and using suggested supportive products (such as activated charcoal, chlorella, etc.) may help support the elimination of possible mercury residues from the body. If pain, swelling, or discoloration is noticed in the new filling, beyond mild sensitivity lasting a few days, the dentist should be contacted.
Maintaining regular routine dental check-ups helps ensure the long-term durability of the new restoration.