Dentin thickness monitor

Details Dentin thickness monitor Dentin thickness monitor

1989-02-13

1990-09-11

Stone, Cary E.

Dentistry

Apparatus

Having gauge or guide

433114, 433215, A61C 1904

Patent

active

049558102

ABSTRACT:
A method and apparatus for measuring the thickness of the dentin layer of a tooth in a patient, at a region where the dentin is exposed, during a dental treatment, by the steps of: establishing an electric voltage between the dentin at the region where it is exposed and a region of the patient's body spaced from the tooth to create an electric current flow through body tissue between those regions; monitoring the current flow to produce an indication of the electrical impedance between those regions; and converting the electrical impedance indication into an indication of the thickness of the dentin layer.

REFERENCES:
patent: 3753434 (1973-08-01), Pike et al.
patent: 3901216 (1975-08-01), Felger
"Mesure Electronique de la Longueur des Canaux", Revue Francaise D'Endodontie, vol. 3, No. 2, Jun. 1984, pp. 19-40.

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