In modern dentistry there are three main types of tooth filling materials: amalgam, composite and temporary filling materials. Additionally there are also three major types of indirect filling material such as gold, porcelain and composite. There has been a lot of controversy over silver fillings (amalgam)
Amalgam vs. Composite Fillings - Wilkinson Dental
Which Dental Filling Material Is Best? - Thanasas Family Dental Care Troy Michigan
How Long Does a Dental Filling Last? - Frankford Dental Care Philadelphia Pennsylvania
Palmetto Dental Associates — Tooth-colored Fillings
Filling Options for Cavities – Comfort Care Family Dental P.C.
Is it smarter to get a silver filling for a tooth cavity or a more natural-looking material? - Quora
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Amalgam Fillings: Should I have my silver (amalgam) filling replaced?
Composite vs Silver Dental Filling
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Amalgam (dentistry) - Wikipedia
Fillings - Composite, Amalgam, Gold, Porcelain - Carson & Carson, DDS