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    • 2. 发明授权
    • Dental brackets for retaining a medicament-releasing pellet on a tooth and kits including such brackets
    • 用于将药物释放丸粒保持在牙齿上的牙科支架和包括这种支架的试剂盒
    • US07097449B2
    • 2006-08-29
    • US10793145
    • 2004-03-04
    • Neil JessopBruce S. McLeanPaul LewisDan BillsDan E. Fischer
    • Neil JessopBruce S. McLeanPaul LewisDan BillsDan E. Fischer
    • A61C3/00
    • A61C7/14A61C19/06
    • The present invention is directed to a dental bracket and associated kit used to attach a medicament-releasing pellet on a tooth. The kit is designed to provide slow release of fluoride or other medicament over a desired period of time. The medicament release kit includes a medicament-releasing pellet and a dental bracket. The bracket comprises a base and a socket configured to receive and retain the pellet at least partially therein. The device may be installed by a dental practitioner and remain attached to a patient's tooth for a few months or up to 20 years. The medicament-releasing pellet, designed to slowly release small quantities of fluoride or another medicament, may be replaced, for example, every 6 months to 2 years. Replacement of the medicament-releasing pellet may be performed at home or at a dentist's office.
    • 本发明涉及一种用于将药物释放丸粒附着在牙齿上的牙科托架和相关联的试剂盒。 该试剂盒旨在在所需时间内提供氟化物或其他药物的缓慢释放。 药物释放试剂盒包括药物释放丸和牙支架。 支架包括底座和插座,其构造成用于至少部分地将球团接纳并保持在其中。 该装置可以由牙科医生安装并且保持连接到患者的牙齿几个月或多达20年。 设计用于缓慢释放少量氟化物或其他药物的药物释放丸可以例如每6个月至2年更换一次。 药物释放丸剂的替代可以在家里或在牙医办公室进行。
    • 6. 发明授权
    • Methods for manufacturing endodontic instruments from powdered metals
    • 从粉末状金属制造牙髓治疗仪器的方法
    • US07743505B2
    • 2010-06-29
    • US11063757
    • 2005-02-23
    • Paul LewisJohn Nielsen
    • Paul LewisJohn Nielsen
    • B21F43/00B23P13/00
    • B21H3/06A61C5/42B21H3/04B21H7/00B22F3/168B22F3/24B22F2003/241B22F2003/247B22F2998/10Y10T29/49218Y10T29/49567Y10T29/49568B22F1/0059B22F3/225
    • Endodontic instruments or intermediate products (e.g., blanks) used to form finished endodontic instruments having a desired cutting edge and/or taper are formed, at least in part, by molding a metal powder into a desired shape and then sintering the metal particles together. The metal powder is initially formed into a green molded part that is sintered to yield a solid metal part. The sintered metal part may optionally be further processed by additional steps, as needed, to yield a finished endodontic instrument. One additional process includes cold forming the sintered metal body to provide a cutting edge, remove cracks and microfissures, or otherwise modify the characteristics of an intermediate product or endodontic instrument. Other processes include chemical milling and mechanical milling, grinding or cutting to sharpen the cutting edge, form a taper, or otherwise modify the intermediate product or endodontic instrument in a desired manner.
    • 至少部分地通过将金属粉末模制成所需形状,然后将金属颗粒烧结在一起而形成用于形成具有所需切削刃和/或锥度的成品牙根管器械的根管器械或中间产品(例如坯件)。 金属粉末最初形成为烧结的生坯成型部,得到固体金属部分。 根据需要,烧结金属部件可以可选地进一步通过附加步骤进一步处理,以产生成品的牙髓器械。 一种额外的方法包括冷成型烧结金属体以提供切削刃,去除裂纹和微裂纹,或以其它方式改变中间产品或牙髓器械的特性。 其他方法包括化学研磨和机械研磨,研磨或切割以锐化切割边缘,形成锥形,或以所需方式改变中间产品或牙髓器具。
    • 7. 发明申请
    • DENTAL TREATMENT TRAYS COMPRISING SILICONE OR OTHER ELASTOMERIC MATERIAL
    • 包含硅胶或其他弹性材料的牙科治疗托盘
    • US20100055639A1
    • 2010-03-04
    • US12201902
    • 2008-08-29
    • Paul LewisScot N. AndersenPeter M. AllredDan E. Fischer
    • Paul LewisScot N. AndersenPeter M. AllredDan E. Fischer
    • A61C9/00
    • A61C19/063A61C19/066
    • Non-customized dental treatment trays used to provide a desired treatment are formed from elastomeric silicone or silicone-like material. They may be injection molded from a two-part liquid silicone composition or a silicone-like TPE material (e.g., preferably SEBS and/or VERSAflex thermoplastic elastomer). The dental treatment trays possess high adaptability, flexibility, softness, and elastic elongation while also exhibiting resiliency in order to readily conform to the ridges, depressions and contours of a person's teeth during use. The trays possess a greater ability to adhere to a person's teeth compared to non-elastomeric thermoplastic materials. Due to their high adaptability and conformability, the non-customized dental trays behave like a semi-custom dental tray when placed over conformed to a person's teeth, particularly when used in combination with a sticky, viscous treatment composition.
    • 用于提供所需治疗的非定制牙科治疗托盘由弹性硅树脂或硅酮类材料形成。 它们可以由两部分液体硅氧烷组合物或硅氧烷类TPE材料(例如,优选SEBS和/或VERSAflex热塑性弹性体)注塑成型。 牙科治疗托盘具有高适应性,柔韧性,柔软性和弹性伸长率,同时还具有弹性,以便在使用期间容易地符合人牙齿的脊,凹陷和轮廓。 与非弹性热塑性材料相比,托盘具有更大的粘附于人的牙齿的能力。 由于其适应性和适应性高,所以非定制的牙盘在放置在符合人的牙齿的情况下表现得像半定制的牙托,特别是当与粘性粘性处理组合物组合使用时。
    • 9. 发明授权
    • Endodontic instrument extractor tool manufactured from a shape memory material and related kits and methods
    • 牙髓仪器提取工具由形状记忆材料制成,相关工具包和方法
    • US07367804B2
    • 2008-05-06
    • US11467418
    • 2006-08-25
    • Paul Lewis
    • Paul Lewis
    • A61C5/12A61C3/00A61C5/08A61C5/00
    • A61C5/46
    • An endodontic instrument extractor tool is configured for removing a fragment of a broken endodontic instrument that has become lodged within a root canal of a tooth. The extractor tool comprises an elongate shaft, including a hollow gripping body at a distal end, and a proximal handle portion. The hollow gripping body includes an inside diameter that is initially greater than a cross-sectional dimension of a fragment of a broken endodontic instrument to be removed from a root canal of a tooth. The inside diameter of the hollow gripping body defines a hollow interior cavity portion into which at least a portion of the fragment is receivable. At least the hollow gripping body of the body is formed of a shape memory alloy (e.g., nickel-titanium) or polymer in an expanded configuration so that upon heating, the shape memory alloy or polymer returns to its unexpanded configuration, tightly gripping around a proximal end of the fragment.
    • 牙髓器械提取器工具被配置用于去除已经被置于牙齿根管内的破碎的牙髓器具的碎片。 提取器工具包括细长轴,包括在远端处的中空夹持本体和近侧手柄部分。 中空夹持体包括最初大于要从牙根的牙根管去除的损伤的牙根管器械的碎片的横截面尺寸的内径。 中空夹持体的内径限定了中空的内部空腔部分,片段的至少一部分可以被接纳到中空部分空腔部分中。 至少本体的中空夹持体由膨胀形状的形状记忆合金(例如,镍钛)或聚合物形成,使得在加热时,形状记忆合金或聚合物返回到其未膨胀的构型, 片段的近端。