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6/22/2017 » 6/25/2017
2017 OSAP Annual Conference

Dental Amalgam Toolkit

Dental Amalgam Toolkit

 OVERVIEW  | REGULATIONS & GUIDELINES | BEST PRACTICES | INSTRUCTIONAL RESOURCES | PATIENT RESOURCES  


Overview             

Dental amalgam is a dental filling material used to fill cavities caused by tooth decay. It has been used for more than 150 years in hundreds of millions of patients around the world.

Dental amalgam is a mixture of metals, consisting of liquid (elemental) mercury and a powdered alloy composed of silver, tin, and copper. Approximately 50% of dental amalgam is elemental mercury by weight.  The chemical properties of elemental mercury allow it to react with and bind together the silver/copper/tin alloy particles to form an amalgam. 
 
Dental amalgam fillings are also known as “silver fillings” because of their silver-like appearance.  Despite the name, "silver fillings" do contain elemental mercury.
 
Image of a capsule containing liquid mercury and amalgam putty.When placing dental amalgam, the dentist first drills the tooth to remove the decay and then shapes the tooth cavity for placement of the amalgam filling. Next, under appropriate safety conditions, the dentist mixes the powdered alloy with the liquid mercury to form an amalgam putty. (These components are provided to the dentist in a capsule as shown in the graphic.) This softened amalgam putty is placed and shaped in the prepared cavity, where it rapidly hardens into a solid filling.

Source: FDA

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Regulations & Guidelines                     

FDA


(1) Regulation of Dental Amalgams

(2) White Paper: Response to 2006 Joint Advisory Addendum to the Dental Amalgam  Panel Comments and Recommendations

ADA

(1) Statement on Dental Amalgam

(2) Dental Amalgam: What Others Say

(3) Amalgam Waste Best Management

EPA

(1) Mercury in Dental Amalgam

(2) Dental Effluent Guidelines including Final Rule

(3) Fact Sheet

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Best Practices                  
Key Learnings as of March 2017

Dental amalgam has been studied and reviewed extensively, and has established a record of safety and effectiveness.

Related Articles

From the National Library of Medicine

FAQs

California Dental Board – The Facts About Fillings

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Instructional Resources                  
Interactive Tutorial AGD - The Life of a Tooth 
Fact Sheets

(1)California Dental Association – Oral Health Fact Sheets

(3) USAF Dental Evaluation & Consultation Service –Amalgam Safety and Children

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Patient Resources               
FDA

(1) Dental Amalgam

(2) About Dental Amalgam Fillings

 MedlinePlus

(1) Dental Amalgam

(2) Tooth Decay

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