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    METHOD AND APPARATUS FOR TOOTH CLEANING USING ABRASIVE POWDERS
    11.
    发明申请
    METHOD AND APPARATUS FOR TOOTH CLEANING USING ABRASIVE POWDERS 审中-公开
    使用磨砂粉进行清洁的方法和装置

    公开(公告)号：WO1998012981A1

    公开(公告)日：1998-04-02

    申请号：PCT/US1997013051

    申请日：1997-08-06

    Applicant: DENTSPLY INTERNATIONAL INC.

    Inventor： DENTSPLY INTERNATIONAL INC. ,  SLOTKE, Noel ,  PASCHKE, Richard, H. ,  HOUBE, Allen, G. ,  SCHUMAN, Robert, J.

    IPC: A61C03/025

    CPC classification number: A61C3/025

    Abstract: In a tooth cleaning system having a flexible protective shield, and a nozzle having an end portion extending into the shield. The shield is connected to a source of vacuum and has an inner wall having an inner wall perimeter. The nozzle is connected to a fluid source. The fluid from the fluid source travels directly from the nozzle to less than half of the area enclosed by the perimeter. The improvement includes pivotally supporting the nozzle whereby the nozzle is readily repositioned to positions angularly offset from the central axis of the shield directing fluid from the nozzle to the entire tooth surface and enclosed by the perimeter. The perimeter forms a fluid tight seal with the tooth outer surface. The invention provides a method of cleaning teeth including providing a flexible plastic shield having a nozzle channel therethrough and a rigid nozzle extending through said nozzle channel. The flexible protective shield is positioned against a tooth surface and the pressure within the chamber formed by the flexible protective shield and the tooth surface is reduced to a pressure below atmospheric pressure. Cleaning the entire tooth surface area by bending the nozzle channel and maintaining a fluid tight seal at the perimeter of the protective shield.

    Abstract translation: 在具有柔性防护罩的牙齿清洁系统中，以及具有延伸到护罩中的端部的喷嘴。 屏蔽件连接到真空源并且具有内壁周边的内壁。 喷嘴连接到流体源。 来自流体源的流体直接从喷嘴移动到由周边包围的区域的一半以下。 该改进包括枢转地支撑喷嘴，由此喷嘴容易地重新定位到从屏蔽件的中心轴线成角度地偏移的位置，该流体从喷嘴引导流体到整个齿面并被周边包围。 周边与牙齿外表面形成流体密封。 本发明提供一种清洁牙齿的方法，包括提供具有穿过其中的喷嘴通道的柔性塑料屏蔽件和延伸穿过所述喷嘴通道的刚性喷嘴。 柔性防护罩抵靠着牙齿表面，并且由柔性防护罩和牙齿表面形成的腔室内的压力降低到低于大气压力的压力。 通过弯曲喷嘴通道并在防护罩的周边保持流体密封来清洁整个牙齿表面区域。

    IMPROVED POLYVINYLSILOXANE IMPRESSION MATERIAL
    13.
    发明申请
    IMPROVED POLYVINYLSILOXANE IMPRESSION MATERIAL 审中-公开
    改进的聚乙烯硅氧烷渗透材料

    公开(公告)号：WO1996032088A1

    公开(公告)日：1996-10-17

    申请号：PCT/US1996005142

    申请日：1996-04-12

    Applicant: DENTSPLY INTERNATIONAL INC.

    Inventor： DENTSPLY INTERNATIONAL INC. ,  HARE, Robert, V.

    IPC: A61K06/10

    CPC classification number: A61K6/10 ,  C08G77/12 ,  C08G77/20 ,  C08G77/70 ,  C08G77/80 ,  C08L83/04 ,  C08L83/00 ,  C08L2666/28 ,  C08L2666/54

    Abstract: Improved two component polymerizable polyorganosiloxane compositions are described, particularly for use in making dental impressions, having improved tear strength and wettability. Improved tear strength results from inclusion of a quadri-functional polysiloxane having a vinyl content of 0.16 to 0.24 m-mole/g. Working time is maintained by including sufficient amounts of a retarder composition that delays onset of the vinyl polymerization. Wettability is improved by including a surfactant resulting in a surface contact angle with water at three minutes of less than 50 DEG C. The surfactant chosen has an HLB of 8-11, such that the wetting contact angle is achieved within less than two minutes and remains wetting throughout the working time of the impression taking, substantially improving impression quality.

    Abstract translation: 描述了改进的双组分可聚合聚有机硅氧烷组合物，特别是用于制造牙印痕，具有改善的撕裂强度和润湿性。 由于包含乙烯基含量为0.16〜0.24m摩尔/ g的四官能聚硅氧烷，提高了撕裂强度。 通过包括足够量的缓凝剂组合物来延缓乙烯基聚合的开始来维持工作时间。 通过包括在小于50℃的三分钟时间与水形成表面接触角的表面活性剂来改善润湿性。所选择的表面活性剂具有8-11的HLB，使得润湿接触角在不到两分钟内达到， 在印象服务的整个工作时间内保持润湿，大大提高印象质量。

    POLYMERIZABLE COMPOUNDS AND COMPOSITIONS
    14.
    发明申请
    POLYMERIZABLE COMPOUNDS AND COMPOSITIONS 审中-公开
    可聚合的化合物和组合物

    公开(公告)号：WO1996019179A1

    公开(公告)日：1996-06-27

    申请号：PCT/US1995016527

    申请日：1995-12-18

    Applicant: DENTSPLY INTERNATIONAL INC.

    Inventor： DENTSPLY INTERNATIONAL INC. ,  KLEE, Joachim, E. ,  WALZ, Uwe

    IPC: A61K06/083

    CPC classification number: C08L67/07 ,  C08G63/52 ,  A61K6/0017 ,  C08L33/08 ,  C08L33/10 ,  C08L33/14 ,  A61K6/0023 ,  A61K6/083

    Abstract: An esterified macromonomer within the scope of general formula (I), wherein Z is an organic moiety, R1 is hydrogen or a substituted or unsubstituted alkyl having from 1 to 12 carbon atoms, oxyalkyl having from 1 to 12 carbon atoms, alkenyl having from 2 to 12 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms, aryl having from 6 to 12 carbon atoms or aralkyl having from 7 to 12 carbon atoms, each E independently is a hydroxil group, an organic ester moiety or an inorganic ester containing moiety and at least one E is an ester containing moiety, n and m each independently is an integer from 2 to 12. The esterified macromonomer is obtainable by esterification of at least a portion of the -OH groups of a macromonomer having at least one terminal double bond with at least one derivative of an inorganic or organic acid which introduces pendant groups exhibiting at least one acid moiety selected from the group consisting of -COOH, -PO3H2, -SO3H, -BO2H or salts thereof. The number of the acid moieties is chosen such that a polymer obtained by polymerizing those monomers has an adhesive strength to dentine of at least 2 MPa.

    Abstract translation: 在通式（I）的范围内的酯化的大分子单体，其中Z是有机部分，R 1是氢或具有1至12个碳原子的取代或未取代的烷基，具有1至12个碳原子的烷氧基，具有2个 至12个碳原子，具有5至12个碳原子的环烷基，具有6至12个碳原子的芳基或具有7至12个碳原子的芳烷基，每个E独立地为羟基，有机酯部分或含无机酯的部分 并且至少一个E是含酯部分，n和m各自独立地是2至12的整数。酯化的大分子单体可通过至少一部分具有至少一个末端双键的大分子单体的-OH基团的酯化获得 与引入具有至少一个选自-COOH，-PO 3 H 2，-SO 3 H，-BO 2 H的酸部分的侧基或其盐的至少一种无机或有机酸的衍生物键合。 选择酸部分的数目使得通过聚合这些单体获得的聚合物对牙本质的粘合强度至少为2MPa。

    DENTAL COMPOSITION AND METHOD
    15.
    发明申请
    DENTAL COMPOSITION AND METHOD 审中-公开
    牙齿组合物和方法

    公开(公告)号：WO1995034270A1

    公开(公告)日：1995-12-21

    申请号：PCT/US1995007544

    申请日：1995-06-13

    Applicant: DENTSPLY INTERNATIONAL INC.

    Inventor： DENTSPLY INTERNATIONAL INC. ,  HUANG, Chin-Teh ,  LU, Kewang ,  FAN, Mingxin ,  HAMMESFAHR, Paul

    IPC: A61K06/083

    CPC classification number: C07C69/92 ,  A61C5/66 ,  A61K6/0017 ,  A61K6/0023 ,  A61K6/083 ,  A61K6/0835 ,  C08L33/00 ,  C08L43/02

    Abstract: The invention provides dental cement compositions and methods of using them for binding hard tooth material, metal and ceramic. The cement compositions include shelf stable complexes of ethylenically unsaturated monomers reacted with cations. The cements have superior adhesion to tooth without separtely acid etching dentin or enamel. Compositions are useful as dental luting cements, liners, pit and fissure sealants, bases and restoratives.

    Abstract translation: 本发明提供了牙科用水泥组合物及其用于结合硬质牙科材料，金属和陶瓷的方法。 水泥组合物包括与阳离子反应的烯属不饱和单体的稳定的络合物。 水泥对牙齿具有优异的附着力，而没有分离酸蚀刻牙质或牙釉质。 组合物可用作牙科水泥，衬垫，凹坑和裂缝密封剂，基底和修复剂。

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