Periodontal probe instrument

Details Periodontal probe instrument Periodontal probe instrument

1986-03-07

1987-11-24

Peshock, Robert

Dentistry

Apparatus

Having heater or electrode

A61C 300

Patent

active

047086475

ABSTRACT:
A periodontal probe instrument for measuring the depth of the gingival sulcus and periodontal pockets. A probe extending from a handle of the instrument includes a transparent portion which is insertable into the periodontal pocket. An optical fiber extends through the probe and may be retracted until its end is barely visible at the gingival line. A potentiometer driven by the retraction mechanism for the fiber generates an electrical output signal having a voltage proportional to the position of the fiber to provide a measure of the pocket depth. The signal is used to digitally display and print each measurement that is taken.

REFERENCES:
patent: 3058225 (1962-10-01), Ward
patent: 3559292 (1971-02-01), Weissman
patent: 3943914 (1976-03-01), Grenfell et al.
patent: 4250895 (1981-02-01), Lees

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