公开(公告)号：US5676541A

公开(公告)日：1997-10-14

申请号：US557630

申请日：1995-11-14

申请人： Michel Maillefer ,  Pierre-Luc Maillefer

发明人： Michel Maillefer ,  Pierre-Luc Maillefer

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： A set of instruments for boring of radicular dental canals, in which the diameter D1 of each instrument, measured at the root of the pointed end portion thereof, varies according to a geometrical progression as well as the diameter D2 of each instrument measured at the root of the cutting edges. Hence, the variation is more pronounced for the diameters D2, larger than the diameters D1, than it is for the diameters D1. The conicity of the stem of the instruments increases in this manner from one instrument to another, so as to permit a the dentist to form the radicular canals with a specially funnelled shape which is best suited for some obturations, especially those to be treated with gutta-percha.

摘要翻译： 一组用于钻孔牙根管的器械，其中在其尖端部分的根部处测量的每个器械的直径D1根据几何进展以及在根部测量的每个器械的直径D2而变化 的切割边缘。 因此，对于直径D2比直径D1更大的变化比直径D1更大。 仪器的茎的锥度以这种方式从一种器械增加到另一种仪器，以便允许牙医形成具有特殊漏斗形状的针状运河，该形状最适合于一些阻塞，特别是用gutta治疗的那些 -percha

公开(公告)号：US5642998A

公开(公告)日：1997-07-01

申请号：US656988

申请日：1996-06-06

申请人： Francesco Riitano

发明人： Francesco Riitano

IPC分类号： A61C1/00 ,  A61C5/02

CPC分类号： A61C5/023 ,  A61C1/003

摘要： The present invention relates to an endodontic instrument for rapid mechanical widening of the canal mouth and rectification of the first two thirds of the dental root canals. It comprises a head (2, 3, 4) and an elongated conical body or tine (1) joined to the head (2, 3, 4) with a neck part (5). The tine (1) is disaligned with respect to the head (2, 3, 4) in that the neck part (5) has a straight portion (5a), coaxial with the head, and a portion (5b) with an axis which is oblique and coplanar in relation to the axes of the tine and head.

摘要翻译： 本发明涉及一种用于牙槽快速机械加宽和牙根管的前三分之二矫正的根管器械。 它包括头部（2,3,4）和与颈部（5）接合到头部（2,3,4）的细长锥体或齿（1）。 齿（1）相对于头部（2,3,4）不对准，因为颈部（5）具有与头部同轴的直线部分（5a）和具有轴线的部分（5b） 相对于齿和头的轴倾斜并且共面。

公开(公告)号：US5628674A

公开(公告)日：1997-05-13

申请号：US646030

申请日：1996-05-07

申请人： Derek E. Heath ,  Jerry A. Mooneyhan

发明人： Derek E. Heath ,  Jerry A. Mooneyhan

IPC分类号： A61C5/02 ,  B24B19/02 ,  B24B19/04 ,  A61C3/00

CPC分类号： A61C5/023 ,  B24B19/022 ,  B24B19/04

摘要： A method of fabricating an endodontic instrument by a machining operation is disclosed, and wherein a wire-like rod composed of a titanium alloy is advanced past a rotating grinding wheel at a relatively slow feed rate, with a sufficient depth of cut to remove all of the material on a given surface without over grinding a previously ground surface, and with the grinding wheel rotating at a relatively slow surface speed. The disclosed method is able to efficiently produce endodontic instruments having a high degree of flexibility, high resistance to torsional breakage, and with sharp cutting edges along the working length.

摘要翻译： 公开了一种通过机械加工操作制造牙髓矫正器的方法，其中由钛合金组成的线状杆以比较慢的进给速度前进到旋转的砂轮上，具有足够的切割深度， 在给定表面上的材料，而不会对先前的地面进行过磨削，并且砂轮以相对较慢的表面速度旋转。 所公开的方法能够有效地产生具有高度灵活性，高抗扭转断裂性和沿着工作长度的锋利切割边缘的牙髓器具。

公开(公告)号：US5516287A

公开(公告)日：1996-05-14

申请号：US243481

申请日：1994-05-13

申请人： Edward Zdarsky

发明人： Edward Zdarsky

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： A dental root-canal preparation instrument includes a grip and a tool contained therein. The grip has a body fitted at its periphery with axially spaced zones preferably in the form of rings projecting above the periphery of the body. The rings are made of silicone rubber to increase grippability when manually grasping the preparation instrument.

摘要翻译： 牙根管准备器械包括夹子和其中包含的工具。 手柄具有在其周边安装的主体，其轴向间隔开的区域优选地呈凸出在主体周边上方的环形。 戒指由硅橡胶制成，以便在手动抓取准备仪器时增加抓地力。

公开(公告)号：US5503554A

公开(公告)日：1996-04-02

申请号：US419813

申请日：1995-04-11

申请人： G. John Schoeffel

发明人： G. John Schoeffel

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： Endodontic files which provide constant dentin volume removal from file to file based on the actual volume of dentin removed from file to file. Each file removes exactly the same increase in volume as its predecessor. In this manner, a clinician may use each file in a sequential manner from smallest to largest without the need to alternate sizes or rely on subjective factors. Correspondingly, the time required to prepare a patient's root canal drops as a function of the reduced need to interchange sizes along the way and provide a clinical method of preparing root canals that relies on objective clinical techniques.

摘要翻译： 牙髓文件根据从文件到文件的实际牙本质体积，提供从文件到文件的不变牙本体体积清除。 每个文件都会删除与其前身完全相同的卷增加量。 以这种方式，临床医生可以以从小到大的顺序方式使用每个文件，而不需要交替的大小或依赖于主观因素。 相应地，准备患者根管所需的时间随着沿途改变尺寸的减少的需要而降低，并且提供了依赖客观临床技术制备根管的临床方法。

公开(公告)号：US5213499A

公开(公告)日：1993-05-25

申请号：US826777

申请日：1992-01-28

申请人： Philippe Levy

发明人： Philippe Levy

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： An endodontic file comprising a handle and an elongate cutting portion, a distal end remote from the handle and formed to have a first file portion which is adjacent the distal end and has the physical form of a k file, and a second file portion, which is located between the first portion and the handle and has the physical form of a Hedstrom file.

摘要翻译： 一种牙根管文件，其包括手柄和细长切割部分，远离手柄的远端形成为具有与远端相邻并具有ak文件的物理形式的第一文件部分和第二文件部分，其中第二文件部分 位于第一部分和手柄之间，并具有Hedstrom文件的物理形式。

公开(公告)号：US5104316A

公开(公告)日：1992-04-14

申请号：US511092

申请日：1990-04-19

申请人： John T. McSpadden

发明人： John T. McSpadden

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： An endodontic reamer or file instrument for cleaning and shaping root canals includes a shank having a tapered working portion extending along a section of the shank length to a leading end. A pilot is attached to the working portion adjacent the leading end and is smaller in diameter than is the working portion at the leading end. The working portion includes at least one continuous helical flute which spirals along its length and a helical land at the periphery of the working portion which extends between adjacent flutes. The working portion also includes at least one lip adjacent the pilot which has a cutting edge which lies generally in a radial plane of the shank, and each flute which spirals along the length of the working portion toward the leading end terminates at the cutting edge of a corresponding lip so that as the instrument is moved longitudinally through a root canal, root canal tissue disposed to one side of the pilot is exposed to the cutting edge of the working portion.

摘要翻译： 用于清洁和整形根管的牙髓扩孔器或文件仪器包括具有沿着柄长度的一部分延伸到前端的锥形工作部分的柄。 导向件附接到与前端相邻的工作部分，并且直径小于前端处的工作部分的直径。 工作部分包括沿着其长度螺旋的至少一个连续的螺旋槽和在相邻槽之间延伸的工作部分的周边处的螺旋接合面。 所述工作部分还包括邻近所述导向件的至少一个唇缘，所述​​至少一个唇缘具有通常位于所述柄的径向平面中的切割边缘，并且沿着所述工作部分的所述长度方向朝向所述前端螺旋的每个凹槽终止于 相应的唇缘，使得当仪器纵向移动通过根管时，设置在飞行员一侧的根管组织暴露于工作部分的切割边缘。

公开(公告)号：US5026284A

公开(公告)日：1991-06-25

申请号：US156813

申请日：1988-02-17

申请人： Howard Martin

发明人： Howard Martin

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： In root canal preparation, there is provided a smooth sided pilot ended endodontic K-type file, a K-type reamer file, a H-type Hedstroem file, an S-type file, and a R-type file (rhomboid), with the safe end of the instrument or file measured from D1 from 1-3 mm before the cutting edges are developed on all types of endodontic cutting instruments and on all sizes from 06-140.The smooth sided pilot end of the apex file can be incrementally increased based upon the increasing size of the instruments. For example, #15=1 mm smooth sided pilot end, #20=2 mm safe end, #25=3 mm smooth sided pilot end, etc. This is to be used for ease with the step back preparation technique. The smooth sided pilot ended apex file instrument has the ability to act as pathfinder into the root canal without damaging the apex portion during this phase.The smooth sided pilot ended endodontic file of this invention avoids forcing debris and filling material out the apex and creates a proper apical stop of proper retention and resistance. The smooth sided pilot ended endodontic file of this invention is necessary to achieve the critical phase of root canal preparation.

摘要翻译： 在根管准备中，提供了一个安全终止的根管K型文件，K型铰刀文件，H型Hedstroem文件，S型文件和R型文件（rhomboid），具有安全 在切割边缘之前从D1开始测量的仪器或文件的末端在所有类型的牙髓根切割仪器上开发，并在06-140的所有尺寸上进行。 基于仪器的尺寸增加，顶点文件的安全端可以逐渐增加。 例如，＃15 = 1mm安全端，＃20 = 2mm安全端，＃25 = 3mm安全端等。这样可以用于后退准备技术。 安全结束的顶端文件仪器具有在这个阶段期间作为根管的探路器而不损坏顶点部分的能力。 本发明的安全终止的牙髓治疗文件避免了将碎屑和填充材料挤出顶点，并产生适当的保留和阻力的适当的顶端停止。 本发明的安全终止的根管锉是实现根管准备的关键阶段所必需的。

公开(公告)号：US5017138A

公开(公告)日：1991-05-21

申请号：US347714

申请日：1989-05-05

申请人： Herbert Schilder

发明人： Herbert Schilder

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： Differences in the diameters of successive cutting instruments, either hand- or engine-powered, within sets of instruments described herein progress sequentially by constant percentages of increase, rather than by constant linear increase as is currently the practice in the dental manufacturing industry.

摘要翻译： 手动或发动机驱动的连续切割仪器的直径差异在本文所述的一组仪器中的顺序依次增加的恒定百分比，而不是像现在牙科制造业中的实践一样恒定的线性增加。

公开(公告)号：US4904185A

公开(公告)日：1990-02-27

申请号：US267032

申请日：1948-01-10

申请人： John T. McSpadden

发明人： John T. McSpadden

IPC分类号： A61C5/02

CPC分类号： A61C5/023

摘要： In one embodiment, a condenser instrument for thermomechanically condensing a thermoplastic material, such as gutta percha, in the extirpated root canal of a tooth through rotation of the instrument is disclosed. The condenser instrument includes a shank having a tapered working portion along part of its length. The working portion includes a single, continuous helical flute defining a continuously helical shoulder having a negative rake angle. The shoulder is generally directed downwardly toward the tip end of the shank. A wide land is formed at the periphery of the shoulder. In a second embodiment, a remover instrument for removing a thermoplastic material, such as gutta percha, from a previously obturated root canal of a tooth through rotation of the remover instrument is disclosed. The remover instrument includes a shank having a tapered working portion along part of its length. The working portion includes a single, continuous helical flute defining a continuous helical shoulder having a negative rake angle. The shoulder is generally directed upwardly away from the tip of the shank. A wide land is formed at the periphery of the shoulder.

摘要翻译： 在一个实施例中，公开了一种用于通过所述器械的旋转将热塑性材料例如gutta percha热塑性冷凝在牙齿的拔除根管中的冷凝器。 该冷凝器包括沿其长度的一部分具有锥形工作部分的柄。 工作部分包括单个连续的螺旋槽，其限定具有负前角的连续螺旋的肩部。 肩部通常朝向柄部的尖端向下指向。 在肩部的周围形成一个宽阔的地面。 在第二实施例中，公开了一种用于通过旋转移除器械从先前通过牙齿的根管去除热塑性材料例如牙龈的去除器具。 去除器具包括沿其长度的一部分具有锥形工作部分的柄。 工作部分包括单个连续的螺旋槽，其限定具有负斜角的连续螺旋肩。 肩部通常向上远离柄部的尖端。 在肩部的周围形成一个宽阔的地面。