US 4,251,732 AGranted

Dental x-ray film holders

OwnerAlan J. Friedinventor

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Abstract

An improved dental intra-oral x-ray film packet holding and positioning instrument. Embodiment is of single unit construction. Two diametrically opposed film holding slots are provided for positioning all posterior exposures. Another slot is provided for positioning all anterior and bitewing positions. The slots are so designed that film is held parallel to the long axes of the teeth. An extension for alignment of the x-ray beam with the film is also incorporated in the instrument's unit construction.

Claims3

Dependent claims

An instrument for holding and positioning intra-oral dental X-ray film packets for all anterior, posterior and bitewing views comprising:

an essentially triangular bite platform having two straight edges forming a right angle and a third curved edge, said bite platform having an upper and a lower biting surface for engagement by upper and lower posterior teeth simultaneously;
slotted film holding means formed by perpendicularly projecting sidewalls at one straight edge of said bite platform, extending above and below the bite platform surfaces, forming two adjacent `U` shaped slots diametrically opposed to each other so as to provide slotted means for holding a dental X-ray film packet at right angles to either the upper or the lower bite platform surface when taking posterior periapical views;
a relatively long straight narrow extension joining the triangular bite platform at its curved edge side, in a direction perpendicular to the film holding slots, forming a `T` shaped intersection, said long narrow extension providing means for aligning an X-ray beam source at right angles to the X-ray film packet as it is held in place by the slot of the upper bite surface or as it is held in the slot of the lower bite surface
a relatively short straight narrow extension forming a right angle with the `T` shaped intersection and projecting in a direction 180.degree. opposite to the direction of the X-ray beam alignment extension, said short straight narrow extension forming a bite platform having flat upper and lower biting surfaces suitable for engagement by upper and lower posterior teeth simultaneously;
and
a `U` shaped X-ray film holding means joined to the end of said short straight narrow extension, said `U` shaped means being formed by sidewalls perpendicular to the biting surface of the extension, thereby providing a `U` shaped slot by which an X-ray film packet can be held at right angles to the X-ray beam alignment extension when the upper and lower posterior teeth engage the biting surfaces of the short straight narrow extension when bitewing views are taken.

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Dependencies are inferred from the claim text.

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Abstract

An instrument for holding and positioning intra-oral dental X-ray film packets for all anterior, posterior and bitewing views comprising:

an essentially triangular bite platform having two straight edges forming a right angle and a third curved edge, said bite platform having an upper and a lower biting surface for engagement by upper and lower posterior teeth simultaneously;
slotted film holding means formed by perpendicularly projecting sidewalls at one straight edge of said bite platform, extending above and below the bite platform surfaces, forming two adjacent `U` shaped slots diametrically opposed to each other so as to provide slotted means for holding a dental X-ray film packet at right angles to either the upper or the lower bite platform surface when taking posterior periapical views;
a relatively long straight narrow extension joining the triangular bite platform at its curved edge side, in a direction perpendicular to the film holding slots, forming a `T` shaped intersection, said long narrow extension providing means for aligning an X-ray beam source at right angles to the X-ray film packet as it is held in place by the slot of the upper bite surface or as it is held in the slot of the lower bite surface
a relatively short straight narrow extension forming a right angle with the `T` shaped intersection and projecting in a direction 180.degree. opposite to the direction of the X-ray beam alignment extension, said short straight narrow extension forming a bite platform having flat upper and lower biting surfaces suitable for engagement by upper and lower posterior teeth simultaneously;
and
a `U` shaped X-ray film holding means joined to the end of said short straight narrow extension, said `U` shaped means being formed by sidewalls perpendicular to the biting surface of the extension, thereby providing a `U` shaped slot by which an X-ray film packet can be held at right angles to the X-ray beam alignment extension when the upper and lower posterior teeth engage the biting surfaces of the short straight narrow extension when bitewing views are taken.

3 more elements