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Dentin Bonding with DenTASTIC
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A.
Basic Anatomy
Dentin is a fiber reinforced tissue consisting of minerals,
collagen and water. The mineral component is mostly calcium
phosphate in the form of hydroxyapatite. Cutting dentin
with a rotary bur produces a smear layer of dentinal debris.
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B.
Surface Treatment
Etching dentin removes the smear layer, dissolves the
minerals at the surface exposing the collagen fiber matrix,
and slightly opens the dentinal tubules. All the popular
dentin etchants (maleic, nitric and phosphoric acid) achieve
the same results.
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C.
Adhesive Primer
DenTASTIC Adhesive Primer A + B forms an interlocking
matrix with the exposed collagen and forms plugs in the
dentinal tubules. This is referred to as the "hybrid layer"
and provides extraordinary micromechanical retention.
DenTASTIC permanently seals the tubules, desensitizes
the tooth and protects the pulp.
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D.
Unfilled Resin, Restorative Composite & Resin Cement
Unfilled Resin Bonding Agent is placed over DenTASTIC
to wet the adhesive surface. Restorative composite or
resin cement is placed over the Unfilled Resin. Since
all these resins and the adhesive primer are based on
essentially the same chemistry, they chemically bond together
with tremendous strength and act as though they are one.
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