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Cosmetic
Fillings
There are alternative, natural-looking materials to conventional
silver-colored fillings – materials made from porcelain
and composite resins, which are colored to match natural tooth
enamel. Unfortunately, few materials can match the strength
and durability of dental amalgam and such, may need more frequent
replacement. Common amalgam alternatives include:
- Composite fillings -- As stated, composite fillings are
just what the name implies: a mixture of resins and fine
particles designed to mimic the color of natural teeth.
While not as strong as dental amalgam, composite fillings
provide a pleasing aesthetic alternative. Sometimes, composite
resins need to be cemented, or bonded to a tooth to allow
for better adhesion.
- Ionomers -- Like composite resins, these materials are
tooth-colored. Ionomers are made from a combination of various
materials, including ground glass and acrylic resins. Ionomers
are typically used for fillings near the gum line or tooth
root, where biting pressure is not a factor. They are more
fragile than dental amalgam, however. A small amount of
fluoride is released by these compounds in order to facilitate
strengthened enamel in the affected area.
- Porcelain (ceramic) -- This material is usually a combination
of porcelain, glass powder and ceramic. Candidates for porcelain
fillings are typically crowns, veneers and onlays and inlays.
Unlike ionomers, porcelain fillings are more durable but
can become fractured if exposed to prolonged biting pressures.
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