Matrix Ring for Tooth Restoration

摘要

A matrix ring comprising includes a biasing ring and a pair of opposing tines. The biasing ring includes a substantially hoop-like configuration terminating at two opposing ends. The pair of opposing tines extend inwardly from each of the two ends of the biasing ring toward each other. Each of the pair of opposing tines is coupled to the respective opposing end about a central region thereof and extends radially outwardly therefrom. Each tine includes a frame body having a central ridge and opposing lower extensions, the lower extensions terminating at an exposed face. The portion of the lower extensions proximate the exposed face being able to move relative to the rest of the frame body so as to better position on the teeth of a patient. A superimposed pad over portions of the frame body provides a deformable surface for engagement with the surface of the tooth of a patient.;In the Specification;The opposing tines 14a, 14b are shown in FIG. 1. The opposing tines in the preferred embodiment are substantial mirror images of each other about a vertical plane substantial positioned between the interproximal space of the opposing tines. As a result, the opposing tine 14a will be described with the understanding that the opposing tine 14b is a 20 substantial mirror image thereof. To the extent that any structures are identified on the opposing tine 14b with reference numbers, these structures are denoted with the same reference number as on the opposing tine 14a.

主权项

1. A matrix ring comprising:
a biasing ring having a substantially hoop-like configuration terminating at two opposing ends which are spaced apart from each other a distance; and a pair of opposing tines extending inwardly from each of the two ends of the biasing ring toward each other and at least one of the opposing tines further including:
a frame body having a front defined by a central ridge, a first lower extension extending from a first side of the central ridge, and a second lower extension extending from a second side of the central ridge, the first lower extension having a top surface and a bottom surface terminating at an exposed face, the top surface and bottom surface cooperating to define a thickness that reduces toward the exposed face, wherein a portion of the first lower extension proximate the exposed face is configured to rotate and translate relative to the remainder of the frame body upon application of an operable positioning within a mouth of a patient, the second lower extension having a top surface and a bottom surface terminating at an exposed face, the top surface and bottom surface cooperating to define a thickness that reduces toward the exposed face, wherein a portion of the second lower extension proximate the exposed face is configured to rotate and translate relative to the remainder of the frame body upon operable positioning within a mouth of a patient, with the exposed faces of each of the first and second lower extensions being spaced apart from each other and configured for independent relative movement; anda superimposed pad positioned over a portion of the front of the frame body the superimposed pad having a first side and a second side, the first side extending over the top surface of the first lower extension, the second side extending over the top surface of the second lower extension, the superimposed pad having a first front face and a second front face, which together with the exposed faces of the first and second lower extensions defines the tooth engagement surface of the tine, the superimposed pad comprising a resilient material configured to elastically deform upon operable positioning within the mouth of a patient, or upon relative movement of the first and second lower extensions.