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901 S. El Camino Real, San Mateo CA 94402   800.633.3333   7 Days

Jimmy Kwan , DDS

TYPES OF FILLINGS

Dental amalgams (silver fillings) are made from a silver/tin/copper

alloy that is mixed with mercury. The alloy is in powder form prior to

mixing with the mercury, which is liquid at room temperature.


Dental composite (tooth colored fillings) consist of a resin matrix with

filler particles. The resin is the liquid component that hardens with time

by chemical reaction. The filler particles are made from solid substances

such as glass or pieces of set resin. Composite fillings require less

drilling as compare with silver filling, so more of your natural tooth

structure is preserved.

PROPOSITION 65 WARNING: Dental amalgram, used in many dental

fillings, causes exposure to mercury, a chemical known to the state of

California to cause cancer.

The U.S. Food and Drug Administration has studied the situation and

approved for use all dental restorative materials. Consult your dentist to

determine which materials are appropriate for your treatment.