Versatile intraoral radiographic film positioning system

Details Versatile intraoral radiographic film positioning system Versatile intraoral radiographic film positioning system

1976-01-09

1977-09-13

Smith, Alfred E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Photographic type

250521, G03B 4116

Patent

active

040485064

ABSTRACT:
A universal intraoral radiographic system for taking periapical as well as bite-wing radiographs comprises a bite block, a bite block holder and an x-ray beam alignment means. The bite block includes a bite portion having a substantially vertically extending film-holding slot permitting the film to extend therethrough into any desired position. A film-locking slot extends substantially horizontally through the bite portion so as to receive the bite block holder which locks the film in place within the film-holding slot. The x-ray beam alignment means or target comprises a substantially planar piece of radio transparent material which may have circular indicia for aligning an x-ray beam of circular cross-section or rectangular indicia for aligning an x-ray beam of rectangular cross-section. The system may also be used to practice the occlusal technique by utilizing an occlusal film holder having a coupling portion adapted to be received by the film-holding slot.

REFERENCES:
patent: 1923669 (1933-08-01), Harrison
patent: 2090933 (1937-08-01), Bolin
patent: 2245395 (1941-06-01), Goldberg
patent: 2688096 (1954-08-01), Galliano et al.
patent: 3304422 (1967-02-01), Medwedeff
patent: 3473026 (1969-10-01), Updegrave
patent: R25773 (1965-05-01), Medwedeff et al.

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