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Primary Examiner: Cohen, Lee S.
Assistant Examiner:
Attorney: Flehr, Hohbach, Test, Albritton & Herbert

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Title: Method and apparatus for measuring the sensitivity of teeth

Abstract: A dental apparatus for measuring the sensitivity of teeth. The apparatus includes an electrode probe for contacting a tooth and an electrical lead for forming a complete circuit with the probe through the tooth. Electrical energy is applied to the tooth in varying amounts; the apparatus measures and records the quantitative magnitude of a parameter proportional to the effective electrical energy applied to the tooth.

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Other info:

Inventors: Stark, Marvin M. (Los Altos Hills, CA, US)
Rosenfeld, Jack B. (San Francisco, CA, US)
Pelzner, Roger B. (San Mateo, CA, US)
Soelberg, Kenneth B. (Menlo Park, CA, US)

Application Number: 818508
Filing Date: 1977-07-25
Publication_date: 1979-08-14
Assignee: The Regents of the University of California (Berkeley, CA)
Primary Class(es): 600/554 433/32
Other Classes:
US Patent Ref:

2249894	Jul, 1941	Goldenstein	128/303.
2522052	Sep, 1950	Logan	128/2.
2949107	Aug, 1960	Ziegler	128/2.
3128759	Apr, 1964	Bellis	128/2.
3215139	Nov, 1965	Dietz	128/419.
3295514	Jan, 1967	Hein et al.	128/2.
3601126	Aug, 1971	Estes	128/303.
3755900	Sep, 1973	Friedman	128/2.
3782366	Jan, 1974	Brown	128/2.
3782389	Jan, 1974	Bell	128/421.
3830226	Aug, 1974	Staub	128/2.
3841311	Oct, 1974	Brown	128/2.
3943914	Mar, 1976	Grenfell et al.	128/2.
3943919	Mar, 1976	Landgraf	128/2.
3954111	May, 1976	Sato	128/419.

Other Refs: 443755248148

May, 1927	DE2
Nov, 1969	SU

Other References: Mason et al., "Pain Sensations . . . stimulation", IEEE Transon Bio. Med. Eng., vol. 23, No. 5, pp. 405-409, Sep. 1976.
Gneco et al., "A New Apparatus for the Quantitative . . . Phys.", Med. & Bio. Eng., vol. 9, No. 6, pp. 705-710, 1971.