IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0225000
(2002-08-20)
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발명자
/ 주소 |
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
45 |
초록
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A customized dental tray comprising ULDPE is formed using a person's own teeth as a template, or using a stone model of the person's teeth. A preformed dental tray or sheet comprising ULDPE is heated to become plastically deformable and placed over at least a portion of the person's teeth in order t
A customized dental tray comprising ULDPE is formed using a person's own teeth as a template, or using a stone model of the person's teeth. A preformed dental tray or sheet comprising ULDPE is heated to become plastically deformable and placed over at least a portion of the person's teeth in order to form an impression of the person's teeth and yield an intermediate customized dental tray. Upon cooling sufficiently, the intermediate tray is removed from the persons' mouth and trimmed as needed to yield a finished customized tray corresponding to the person's teeth. The performed tray or sheet preferably comprises ULDPE, which yields a highly flexible and resilient final tray, although they may also contain other polymers or blends. The customized dental tray is useful for teeth bleaching and other dental treatments known in the art.
대표청구항
▼
1. A preformed tray for use in forming a thin-walled and flexible customized dental tray comprising ultra low density polyethylene having a density of less than 0.914 g/cm3, the preformed tray maintaining sufficient integrity and avoiding collapse when heated so as to be plastically deformable so th
1. A preformed tray for use in forming a thin-walled and flexible customized dental tray comprising ultra low density polyethylene having a density of less than 0.914 g/cm3, the preformed tray maintaining sufficient integrity and avoiding collapse when heated so as to be plastically deformable so that it can be placed over a person's teeth during customization without a supporting outer tray device even though it has a wall thickness of less than 2 mm, the preformed tray having a non-customized configuration that approximately corresponds to a person's dental arch and further comprising:a bottom wall having a thickness that is less than 2 mm;a front side wall extending laterally from an outer edge of the bottom wall and having a thickness that is less than about 1.8 mm;a rear side wall extending laterally from an inner edge of the bottom wall and having a thickness that is less than about 1.8 mm; anda hollow interior defined by the bottom wall, front side wall, and rear side wall that is sized and configured so as to approximate a corresponding shape of the person's dental arch,wherein the bottom wall, front side wall, and rear side wall are each of substantially uniform thickness so as to be devoid of indentations corresponding to a person's unique dentition.2. A preformed tray as defined in claim 1, the preformed tray further comprising at least one of a low density polyethylene, ethylene vinyl acetate, polycaprolactone, polypropylene, or another type of polyethylene in addition to the ultra low density polyethylene.3. A preformed tray as defined in claim 1, the bottom wall having a thickness in a range of about 0.4 mm to 2 mm.4. A preformed tray as defined in claim 1, the bottom wall having a thickness in a range of about 0.6 mm to about 1.5 mm.5. A preformed tray as defined in claim 1, the bottom wall having a thickness in a range of about 0.8 mm to about 1.3 mm.6. A preformed tray as defined in claim 1, the front and the rear side walls each having thickness in a range of about 0.3 mm to about 1.8 mm.7. A preformed tray as defined in claim 1, the front and the rear side walls each having thickness in a range of about 0.4 mm to about 1.4 mm.8. A preformed tray as defined in claim 1, the front and the rear side walls each having thickness in a range of about 0.7 mm to about 1.2 mm.9. A preformed tray as defined in claim 1, the preformed tray being plastically deformable at a temperature in a range of about 110° to about 180° F.10. A preformed tray as defined in claim 1, the preformed tray being plastically deformable at a temperature in a range of about 120° to about 170° F.11. A preformed tray as defined in claim 1, the preformed tray being plastically deformable at a temperature in a range of about 130° to about 160° F.12. A preformed tray as defined in claim 1, the preformed tray being flexible and resilient below its softening point.13. A preformed tray as defined in claim 1, the front side wall being substantially perpendicular to the bottom wall.14. A preformed tray as defined in claim 1, a portion of the rear side wall corresponding to the location of the person's molars being substantially perpendicular to the bottom wall and a portion of the rear side wall corresponding to the location of the person's incisors having an oblique angle relative to the bottom wall.15. A preformed tray as defined in claim 1, the bottom wall being substantially planar.16. A preformed tray as defined in claim 1, the bottom wall being curved.17. A preformed tray as defined in claim 1, the preformed tray characterized as substantially maintaining its initial size and shape when heated so as to become plastically deformed but shrinking so as to conform to a person's teeth when placed over the teeth and allowed to cool.18. A preformed tray as defined in claim 1, further comprising a handle attached to and extending laterally from a surface of the front side wall.19. A preformed tray as defined in claim 18, the handle and front side wall of the preformed tray having an attachment interface with a length of about ⅛ inch.20. A preformed tray for use in forming a thin-walled and flexible customized dental tray comprising a flexible thermoplastic material that becomes plastically deformable at a temperature in a range of about 110° to about 180° F., the preformed tray maintaining sufficient integrity and avoiding collapse when heated so as to be plastically deformable so that it can be placed over a person's teeth during customization without a supporting outer tray device even though it has a wall thickness less than 2 mm, the preformed tray having a non-customized configuration that approximately corresponds to a person's dental arch and further comprising:a bottom wall having a thickness less than 2 mm;a front side wall extending laterally from an outer edge of the bottom wall and having a thickness that is less than about 1.8 mm;a rear side wall extending laterally from an inner edge of the bottom wall and having a thickness that is less than about 1.8 mm; anda hollow interior defined by the bottom wall, front side wall, and rear side wall that is sized and configured so as to approximate a corresponding shape of the person's dental arch,wherein the bottom wall, front side wall, and rear side wall are each of substantially uniform thickness so as to be devoid of indentations corresponding to a person's unique dentition.
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