Dentistry – Apparatus – Jaw – cheek – lip – or tongue positioner
Patent
1999-01-21
2000-08-15
Lucchesi, Nicholas D.
Dentistry
Apparatus
Jaw, cheek, lip, or tongue positioner
A61C 500
Patent
active
061027014
ABSTRACT:
An improved retractor apparatus for conducting orthodontic procedures in a dry field, the retractor including a first arm portion for extending along the outer surface of a patient's cheek that can be grasped by the orthodontist performing the procedure; a second lower lip depressor portion concavely formed for pressing against the lower lip as the orthodontist grasps the handle portion, a third cheek retractor portion extending from the bridge (lip retractor) portion into the mouth of the patient and formed in a biconvex fashion to curve along the inner surface of the cheek of the patient; an upper lip retractor portion that retracts and elevates the upper lip as the apparatus is manipulated by the dentist, a bridge member situated at the confluence of the first arm, (handle) portion, the second arm (lower lip depressor) portion, the third arm (cheek retractor) portion and the fourth arm (upper lip retractor) portion. The long axis of the handle portion extends at an incline relative to the lip depressor and cheek retractor portions for defining a thin waist portion on the handle so that the end of the handle may be grasped to depress the patient's lower lip, retract the upper lip, and to extend the cheek of the patient outward so as to provide an increased volume of space for conducting the orthodontic procedure in a dry field.
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patent: 4259068 (1981-03-01), Stephens
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