IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0878451
(2007-07-24)
|
등록번호 |
US-7744370
(2010-07-19)
|
발명자
/ 주소 |
- Jaklinski, Jeffrey P.
- Lechel, John
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
8 |
초록
▼
The dental device for insertion of a crown is a tool for marking an occlusally reduced tooth prior to application of a crown thereon, and for testing whether the tooth has been sufficiently reduced for proper application of the crown. The dental device includes a marking portion frangibly joined to
The dental device for insertion of a crown is a tool for marking an occlusally reduced tooth prior to application of a crown thereon, and for testing whether the tooth has been sufficiently reduced for proper application of the crown. The dental device includes a marking portion frangibly joined to a resistance testing portion. The marking portion includes a marking layer formed of a transferable material so that, following occlusal reduction of the tooth, the marking portion is separated from the resistance testing portion, and the marking layer is positioned against an upper surface of the tooth. The patient bites down on the marking layer to mark raised regions of the upper surface of the tooth, and subsequently bites down on the resistance testing portion, to test if the tooth has been sufficiently reduced for application of a crown thereon.
대표청구항
▼
We claim: 1. A dental device for insertion of a crown, consisting essentially of: a substantially planar elongated base layer having a marking portion and a resistance testing portion, separated by a frangible joint, the base layer having opposed first and second surfaces, wherein said marking port
We claim: 1. A dental device for insertion of a crown, consisting essentially of: a substantially planar elongated base layer having a marking portion and a resistance testing portion, separated by a frangible joint, the base layer having opposed first and second surfaces, wherein said marking portion and said resistance testing portion each have a longitudinally opposed end located opposite the frangible joint and a common longitudinal axis traversing the ends and the frangible joint, said marking portion and said resistance testing portion being substantially symmetrically configured about the frangible joint located at the approximate midpoint of the base layer; and a first marking layer formed from a transferable medium coated on the first surface of the marking portion of the base layer, the first marking layer being adapted for positioning against an upper surface of an occlusally reduced tooth to mark raised regions of the upper surface, the resistance testing portion being adapted for positioning between the occlusally reduced tooth and a vertically opposed tooth following marking of the raised regions, the resistance testing portion being adapted for frictionally engaging the occlusally reduced tooth and the vertically opposed tooth in order to measure the degree of occlusal reduction of the occlusally reduced tooth. 2. The dental device for insertion of a crown as recited in claim 1, wherein the frangible joint is a slot formed through said base layer at the juncture of said marking portion and said resistance testing portion, said slot extending along a substantially lateral direction orthogonal to the longitudinal axis. 3. The dental device for insertion of a crown as recited in claim 1, wherein said base layer is formed from a flexible material. 4. The dental device for insertion of a crown as recited in claim 1, wherein the transferable medium of the first marking layer is selected from the group consisting of resin, wax, carbon, charcoal, chalk and combinations thereof. 5. The dental device for insertion of a crown as recited in claim 1, further comprising a second marking layer coated on the second surface of the marking portion, the second marking layer being formed from a transferable medium. 6. The dental device for insertion of a crown as recited in claim 5, wherein the transferable medium of the first marking layer and the transferable medium of the second marking layer are selected from the group consisting of resin, wax, carbon, charcoal, chalk and combinations thereof. 7. The dental device for insertion of a crown according to claim 1, wherein said base layer is made from an elastomeric polymer. 8. The dental device for insertion of a crown according to claim 1, wherein said base layer is made from an elastomeric material selected from the group consisting of natural rubber, synthetic rubber, and an elastomeric block copolymer. 9. A method of using a dental device for the insertion of a crown, comprising the steps of: providing a dental device, said dental device consisting essentially of a substantially planar elongated base layer having a resistance testing portion being substantially configured and frangibly joined to a marking portion by a frangible joint, the marking portion having at least one marking layer formed on a surface thereof, the marking layer being formed of a transferable medium coated on the marking portion, the base layer having opposed first and second surfaces, wherein said marking portion and said resistance testing portion each have a longitudinally opposed end opposite the frangible joint and a common longitudinal axis traversing the ends and the frangible joint, said marking portion and said resistance testing portion being substantially symmetrically configured about the frangible joint located at the approximate midpoint of the base layer; occlusally reducing a tooth to form an occlusally reduced tooth having an occlusally reduced upper surface; separating the resistance testing portion of the dental device from the marking portion; positioning the marking portion between the occlusally reduced tooth and a vertically opposed tooth, the at least one marking layer being positioned against the occlusally reduced upper surface; applying pressure to the marking portion so that the transferable medium is transferred to at least one raised region of the occlusally reduced upper surface to mark the at least one raised region for fitting of a crown on the occlusally reduced tooth; removing the marking portion from between the occlusally reduced tooth and the vertically opposed tooth; positioning the resistance testing portion between the occlusally reduced tooth and the vertically opposed tooth; applying pressure to the resistance testing portion so that the resistance testing portion frictionally engages the vertically opposed tooth and the occlusally reduced tooth; measuring the frictional resistance to removal of the resistance testing portion from between the occlusally reduced tooth and the vertically opposed tooth to test whether the occlusally reduced upper surface has been properly occlusally reduced for application of the crown; and applying a crown to the occlusally reduced tooth. 10. The method of using a dental device for the insertion of a crown as recited in claim 9, further comprising the steps of: providing a second marking layer formed on the marking portion; and applying pressure to the second marking portion so that a transferable medium thereof is transferred to a surface of the vertically opposed tooth.
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