1974-10-24
1976-06-22
Peshock, Robert
A61C 1300
Patent
active
039641678
ABSTRACT:
A disposable tooth shade guide is provided operable for use by a dentist in determining by comparison the particular shade of an artificial tooth that may be substituted for a natural tooth of a patient. The tooth shade guide includes an elongated holder of generally rectangular configuration. At one end thereof the holder has an artificial tooth secured thereon. The artificial tooth embodies the configuration of a natural tooth and is colored a predetermined shade selected from the various colors which natural teeth most commonly are found to have. The artificial tooth is mounted on the holder by means of a pin which is suitably fastened to the rear of the artificial tooth so as to project outwardly therefrom substantially at right angles to the major axis of the artificial tooth. The pin is passed through an opening provided therefor at the aforementioned one end of the holder. A lock ring is passed over the free end of the pin after the latter is passed through the holder thereby locking the artificial tooth to the holder, yet permitting the former to pivot relative to the latter. A cap is detachably mounted over the artificial tooth on the holder. The cap is suitably dimensioned and configured so as to be receivable on the artificial tooth with a snap fit. In addition, the cap is preferably provided with an outwardly extending tab operable for use in removing the cap from engagement with the artificial tooth and also as a means upon which an identifying letter, numeral, symbol, etc. may be applied to distinguish one cap from another. The cap is colored a predetermined shade whereby when mounted on the artificial tooth the cap is effective to alter the basic color of the artificial tooth to produce a variation in the shade thereof.
REFERENCES:
patent: 1265581 (1918-05-01), Zurbrigg
patent: 1518608 (1924-12-01), Short
patent: 2789353, Biggs
patent: 3748741 (1973-07-01), Yerkes
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