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US 2011/0217669 A1Published application
Dental obturator
OwnerL. Stephen Buchananinventor
Life of this patent
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Abstract
Dental obturators are used in the preparation of root canals in teeth. The subject obturators are so constructed that they bind at a particular distance into the canal, thereby precluding possible damage at the end of the canal. The obturator is used for positioning of a sealing material placed on a carrier portion of the obturator into the root canal. Disclosed are a variety of structural configurations on a tapered surface of the carrier portion is disclosed.
Claims10
A dental obturator for inserting filling and sealing material into a previously prepared root canal comprising:
- a rod-like carrier having a fixed-diameter portion joined to a tapered portion at a transition, the tapered portion of the rod-like carrier terminating in a pointed tip;
- one or more projections on an outer surface on the tapered portion located a predetermined distance back from the tip, said one or more projections providing an enlarged tapered portion periphery at said predetermined distance, said enlarged periphery sized to coincide with a root canal diameter at a predetermined distance from the root canal terminus.
Dependencies are inferred from the claim text.