he aspirating syringe needles used in dental
treatm ent arrive sterile and are disposable. They are
designed for a single use, and are available in different
gauges and lengths . The gauge of a needle
refers to the diameter of the hollow shaft of the needle.
The larger the gauge, the smaller in diameter the
needle. The lengths of the needles vary, and are
classified as long (L) or short (S).
Each needle has either a plastic or metal hub
designed to screw onto the threaded end of the syringe . This hub is positioned to permit the needle
to extend inward to penetrate the rubber seal portion of
a loaded anesthetic carpule.
The plastic caps covering the sterile needle are
easily removed from both ends. When placing the
needle onto the syringe, remove only the cap that
covers the syringe end on the needle. This maintains
the sterility of the needle portion used to inject the
patient.
Normally, you prepare the anesthetic syringe with
a short needle (13/16 inch in length) for maxillary
injections, and a long needle (17/8 inches in length) for
mandibular injections. The tip of the needle has a
beveled angle, which is turned toward the alveolus to
accurately deposit the solution
- 1 PIECE OF-Dental Aspirating Syringe 1.8 cc
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