Dentistry – Apparatus – Jaw – cheek – lip – or tongue positioner
Patent
1994-02-22
1995-10-31
O'Connor, Cary E.
Dentistry
Apparatus
Jaw, cheek, lip, or tongue positioner
600245, 600238, A61C 500
Patent
active
054624355
ABSTRACT:
A new and improved adjustable mouth prop for holding a dental patient's mouth open during performance of a dental procedure in a manner which is safe and comfortable for the patient and convenient for the dentist is disclosed. The adjustable mouth prop comprises a threaded shaft formed of rigid material suitable for sterilization, the shaft having an enlarged head formed on one end thereof. Upper and lower arms formed of rigid material suitable for sterilization are mounted on the threaded shaft and project outwardly from the threaded shaft. The distal end of the arms have integral elongated concave jaw support members extending laterally thereacross. The jaw support members are engagable with the patient's teeth such that the teeth are removedly retained irrespective of the angles of the arms. The adjustable mouth prop further includes adjustable locking member whereby the user may lock the arm members at a selected angular position relative to each other to prop open the patient's mouth. Sterile cushioning pad members are disposed over the jaw support members. The cushioning pad members comprises an outer elastic covering removably stretched over the jaw support member and a resilient molding material disposed within the covering filling the cavity of the jaw support member to comfortably and securely contact a patient's teeth. The new and improved adjustable mouth prop may additionally include a light source attached to the lower arm to illuminate the mouth of the patient.
REFERENCES:
patent: 742698 (1903-10-01), Mason
patent: 815907 (1906-03-01), Davis
patent: 1094575 (1914-04-01), Joutras
patent: 2061936 (1936-11-01), Engelfried
patent: 2075534 (1937-03-01), McCormack
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