Root canal treatment instrument and manufacturing method for the

Details Root canal treatment instrument and manufacturing method for the Root canal treatment instrument and manufacturing method for the

1995-12-22

1998-07-07

Lewis, Ralph

Dentistry

Apparatus

Broach

433224, A61C 102

Patent

active

057759022

ABSTRACT:
This invention relates to a root canal treatment instrument comprising: a needle extending in a rodlike form, comprising: working section made of a superelastic alloy extending from a distal end of the needle; and a shank extending axially between the working section and a proximal end of the needle, made of at least partially a non-superelastic alloy, and a handle attached to a proximal end of the needle and adapted to be manipulated by a hand of a dentist. The working section possesses flexible nature because of its superelastic alloy composition, whereas the shank possesses rigid nature because of its non-superelastic alloy composition.

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Walia et al, An Initial Investigation of the Bending and Torsional Properites of Nitinol Root Canal Files, Journal of Endotonics, vol. 14, No. 7, Jul. 1988, pp. 346-351.

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