Dentistry – Apparatus – Having gauge or guide
Patent
1995-10-23
1998-04-14
O'Connor, Cary E.
Dentistry
Apparatus
Having gauge or guide
A61C 1904
Patent
active
057385173
ABSTRACT:
A patient evaluation reference determining apparatus of the present invention comprises a face bow which extends generally from one of the patient's ears forwardly along the patient's temples or across the patient's face, and back along the other side of the patient's head from the patient's temple to the patient's other ear. The face bow has a pair of ear pieces which are connected to the face bow and each piece is adapted to be inserted in one of the patient's ear openings or potions. The apparatus further includes a nose piece carried by the front portion of the face bow with the nose piece engaging the patient's nasion. Adjustable locking connection are provided at the interconnection of the ear pieces and the face bow and at the nose piece and the face bow. A bubble level is carried by the face bow. The ear pieces and the temples may be adjusted so as to position at least the portion of the face bow carrying the bubble level to be in a true horizontal position and locked in place relative to one another, as established by the bubble level. In this manner, the patient's head is aligned relative to a true horizontal, level plane such that when radiographic or photographic images of the patient's cranium and jaw structure are taken, it is ensured that the patient's head and cranium structure are positioned in a true horizontal reference plane. This enables practitioners to repeatedly position the patient's head and jaw in this true horizontal reference plane.
A method of radiographic examination is disclosed utilizing the above patient evaluation reference determining apparatus.
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