Endo file for dental endodontic treatment
OwnerHyeong Woo Kim, Gyun Hwan Kim +1inventors
InventorsHyeong Woo Kim, Gyun Hwan Kim, Sun Young Kim
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Abstract
An endo file for dental endodontic treatment includes: a head portion inserted into and detachably coupled to a hand piece; a tissue removing portion inserted, from the lower side of the head piece, into a patient's root canal for removing the nerve of a tooth; and a stress dispersion portion provided between the head portion and the tissue removing portion and having at least one horizontal penetration hole so as to buffer stress concentration generated during the rotation of the endo file, and to minimize endo file breakage.
Claims5
An endo file for a dental endodontic treatment, the endo file comprising:
- a head portion;
- a tissue removing portion for removing nerves or diseased tissues within a tooth provided at a lower side of the head portion and having a long-narrow shape;
- and
- a connection portion provided between the head portion and the tissue removing portion, wherein a stress dispersion portion is provided in the connection portion, the stress dispersion portion having at least one horizontal penetration hole to prevent stress concentration resulting from a resistance to a rotation of the tissue removing portion and to minimize endo file breakage,
- wherein the horizontal penetration hole has a horizontal length which is smaller than a longitudinal length thereof and has closed ends at opposite sides along a longitudinal direction thereof,
- wherein the connection portion and the tissue removing portion rotate around an axial direction due to the rotation of the head portion,
- wherein the stress dispersion portion has a circular cross-section and the horizontal penetration hole passes through an axial center of the stress dispersion portion.
Dependencies are inferred from the claim text.