WO2021047301A1 - 用于牙体预备3d打印导板上的预备止动深度标定钻针 - Google Patents

用于牙体预备3d打印导板上的预备止动深度标定钻针 Download PDF

Info

Publication number
WO2021047301A1
WO2021047301A1 PCT/CN2020/103955 CN2020103955W WO2021047301A1 WO 2021047301 A1 WO2021047301 A1 WO 2021047301A1 CN 2020103955 W CN2020103955 W CN 2020103955W WO 2021047301 A1 WO2021047301 A1 WO 2021047301A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
bur
guide plate
depth
stop
Prior art date
Application number
PCT/CN2020/103955
Other languages
English (en)
French (fr)
Inventor
于海洋
赵雨薇
刘春煦
高静
罗天
Original Assignee
四川大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 四川大学 filed Critical 四川大学
Publication of WO2021047301A1 publication Critical patent/WO2021047301A1/zh

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine

Definitions

  • the present invention relates to the technical field of medical devices, in particular to a pre-stop depth calibration drill used for preparing a 3D printing guide plate for a tooth body.
  • Dental aesthetic restoration is to take measures to change the shape of teeth and/or periodontal tissues, and strive to achieve the greatest degree of coordination between the teeth in terms of aesthetics and function, so as to optimize the final effect of the restoration.
  • Aesthetic restoration technology is currently the most commonly used method in aesthetic restoration by grinding away part of the tooth tissue and using porcelain aesthetic materials for space replacement.
  • Commonly used porcelain aesthetic restoration techniques include all-ceramic crown restoration, porcelain veneer restoration, etc., and porcelain veneer restoration is considered to be the most minimally invasive indirect restoration treatment method in aesthetic restoration due to its good aesthetic properties and tooth preservation. .
  • Tooth preparation is one of the most basic operations in the dental prosthetics department. In order to preserve the tooth tissue as much as possible and remove the tooth tissue as little as possible, it is necessary to grasp the spatial position relationship between the shape of the preparation and the target restoration. Generally, it is required that there is a certain size of uniform space gap between the external contour of the prepared external body and the external contour of the target restoration, which directly involves the judgment and determination of the amount of tooth tissue abrasion.
  • tooth preparation guidance technology can be divided into two categories. 1) Refer to the tooth preparation technology of the original tooth surface to evenly remove a certain thickness of tooth tissue from the original tooth surface. Preparation methods include: free hand, groove reference, dimple, depth cutter, hole reference; 2) reference target The tooth preparation technology of TRS in the restoration space is designed and made according to the patient’s personalized situation before preparation.
  • the tooth preparation refers to the space of the wax for preparation, including silicone index and TRS guide. Law (TRS guide).
  • oral clinicians often adopt methods of visually observing the amount of abrasion to prepare preparations, such as free manipulation, deep groove method, and ball drilling method. This method has large errors and the repair effect is highly dependent on the clinician’s experience, especially in To change the shape of the teeth in the restoration treatment.
  • There have also been some methods of measuring the amount of preparation but after measuring the amount of preparation for each part of the tooth, it is necessary for the doctor to roughly prepare based on the experience and the diameter of the bur. It often occurs that the tooth is too prepared (too much grinding). Tooth tissue) or insufficient preparation (requiring measurement and preparation).
  • the fixed-depth bur method and the fixed-depth hole method have advantages, but each preparation site needs to check the preparation depth. If the preparation is insufficient, the tooth tissue needs to be re-grinded. The process is cumbersome. Errors are prone to occur, and the operation time is longer in clinical practice.
  • the technical problem to be solved by the present invention is that the existing tooth preparation tools are not highly accurate, the process is complicated, errors are prone to occur, and they are not convenient and practical.
  • the present invention provides a 3D printing guide plate for tooth preparation that solves the above problems.
  • the prepared stop depth calibration drill needle can improve the convenience of 3D printing guide-guided tooth preparation.
  • select the same stop depth according to the preset preparation depth and use this kind of corresponding
  • the depth of the stop is to calibrate the drill bit. After the drill bit is drilled into a certain depth, the stop ring reaches the surface of the 3D printed guide plate to stop the tooth preparation. Quickly determine the amount of tooth preparation, and quickly prepare depth holes under the guidance of the guide plate.
  • a pre-stop depth calibration drill used for tooth preparation on the 3D printing guide plate includes a needle handle, a needle body and a needle.
  • the end of the needle handle is used in conjunction with a dental turbine, and the side of the needle body near the end of the needle is provided with Scale;
  • the needle is used as a working end for cutting tooth tissue to prepare depth holes;
  • a sharp blade is provided on the needle, and the needle is a truncated cone with a bottom diameter larger than that of the needle body, and the side of the circular cone is evenly provided with and
  • the vertical groove corresponding to the blade makes it easy for the needle to penetrate into the tooth;
  • It also includes a stop ring, the stop ring is sleeved on the needle body, and the diameter of the stop ring is larger than the diameter of the needle body, and the diameter of the stop ring is larger than the hole on the 3D printing guide plate; the needle body between the stop ring and the needle A scale is arranged on the side; the diameter of the needle body with the scale increases in the direction away from the needle.
  • the working principle is: the present invention adopts the above-mentioned solution by setting the stop ring on the needle body, and the needle is provided with a sharp blade.
  • the needle is a circular truncated body with a bottom diameter larger than that of the needle body, and the side of the circular truncated body is evenly provided with vertical To the groove, it is easy for the needle to drill into the tooth.
  • the stop ring reaches the surface of the 3D printed guide plate to stop the tooth preparation and quickly determine the amount of tooth preparation.
  • the depth calibration drill with stop ring can quickly and accurately prepare the tooth on the tooth under the 3D printed tooth preparation guide, which prevents the doctor from using free hands to prepare the tooth based on clinical experience
  • the problem of excessive or insufficient tooth preparation; the depth calibration drill with stop ring can be prepared in place at one time without repeated measurement, which saves clinical operation time and improves patient satisfaction; low cost, and
  • the turbines used in the oral cavity are matched, and the operation is simple; it can be used repeatedly and has a longer service life than the diamond bur.
  • the diameter of the bottom end surface of the needle is 1.0 mm to 1.2 mm, and the length is 1 mm to 2 mm.
  • the stop ring is sleeved on the needle body, preferably in the following two sleeve methods:
  • the stop ring is fixedly sleeved on the needle body, and the stop ring is 4mm ⁇ 10mm away from the needle. Because the 3D printing guide plate has a certain thickness, it is reasonable to set it above 4mm; the 3D printing guide plate can be removed as needed.
  • the tooth size and the stop scale bur to be selected are designed with different thicknesses.
  • the stop ring can be 4mm, 6mm, 8mm away from the needle.
  • the position of the stop ring in the length direction of the needle body is variable.
  • the stop ring is in the form of a nut, and the side of the needle body is in the form of threads.
  • the stop ring can move along the length of the needle body with threads. ,
  • the position is variable, and the depth adjustment is more convenient.
  • the scale value provided with a scale on the side of the needle body close to the end of the needle includes 0.3mm, 0.7mm, 1.5mm ⁇ 2.5mm, 3.0mm, 4.0mm, and it can also be on the tooth surface if the guide plate is not applicable.
  • the color of the needle submerged into the tooth is easy to see in the easy-to-color area. Read the value directly to determine whether it reaches the predetermined depth.
  • different color areas can use different color luminous stickers, and the luminous stickers are pasted at the corresponding positions on the side of the needle body.
  • the number of blades of the sharp blade is 6-10 blades, so that the tooth tissue can be cut quickly and efficiently.
  • the needle handle, needle body, needle head, and stop ring are all made of tungsten steel.
  • the drill needle made of tungsten steel can be used multiple times, has good wear resistance, and has a longer use time than the existing emery bur needles.
  • the present invention has the following advantages and beneficial effects:
  • the present invention is used for preparing the stop depth calibration drill bit on the 3D printing guide plate for tooth preparation.
  • the depth calibration drill bit with stop ring will reach the surface of the 3D printing guide plate after the drill bit is drilled into a certain depth.
  • Stop tooth preparation quickly and accurately determine the amount of tooth preparation, and quickly prepare a fixed depth hole for tooth preparation under the guidance of the guide plate, avoiding the excessive amount of tooth preparation caused by the doctor using free hands to prepare the tooth based on clinical experience Or insufficient problem;
  • the present invention is used for the preparation stop depth calibration drill needle on the 3D printing guide plate of tooth preparation.
  • the depth calibration drill needle with stop ring can be prepared in place at one time without repeated measurement, which saves clinical operation time and improves Satisfaction of patients; low cost, matching with the turbines commonly used in oral cavity, simple operation; reusable for many times, longer service life than emery burs.
  • Fig. 1 is a schematic view of the front structure of a depth calibration drill with a stop ring according to the present invention.
  • Fig. 2 is a schematic diagram of the top view structure of the depth calibration drill bit with stop ring of the present invention.
  • the present invention is used for preparing a stop depth calibration drill on a 3D printing guide for tooth preparation.
  • the drill includes a needle handle 1, a needle body 2 and a needle 3, and the end of the needle handle 1 is connected to the
  • the dental turbine is used in conjunction with a scale 5 on the side of the needle body 2 near the end of the needle 3, and the needle 3 is used as a working end for cutting tooth tissue and preparing a fixed depth hole;
  • the needle 3 is provided with a sharp blade, the needle 3 is a truncated cone with a bottom diameter larger than that of the needle body 2, and the side of the truncated cone is evenly provided with vertical grooves corresponding to the blades;
  • the side of the needle body 2 between the needle 3 and the needle 3 is provided with a scale 5; the diameter of the needle body 2 provided with the scale 5 increases in the direction away from the needle 3.
  • the total length of the drill bit is 19 mm
  • the diameter of the bottom end surface of the needle head 3 is 1.0 mm to 1.2 mm
  • the length is 1 mm to 2 mm.
  • the stop ring 4 is fixedly sleeved on the needle body 2, and the stop ring 4 is 4mm-10mm away from the needle 3, and the stop ring 4 is 4mm, 6mm, 8mm, etc. from the needle 3 Either way, when the working end of the drill bit is submerged into the 3D printed guide plate to the set depth, the tooth preparation stops, and the drill bit can efficiently and quickly determine the amount of tooth preparation and prepare a fixed depth hole.
  • the number of blades of the sharp blade is 6-10 blades, so that the tooth tissue can be cut quickly and efficiently.
  • the needle handle 1, the needle body 2, the needle 3, and the stop ring 4 are all made of tungsten steel.
  • the drill needle made of tungsten steel can be used multiple times and has better abrasion resistance, which is better than that of the existing emery car. Needle use time is long.
  • the working principle is: by setting the stop ring 4 on the needle body 2, when the working end of the drill bit is submerged in the guide plate to the set depth, the stop ring 4 reaches the surface of the 3D printed guide plate, stopping the tooth preparation, and quickly determining the tooth.
  • the amount of body preparation is quickly prepared under the guide of the guide plate; the depth calibration drill with stop ring 4 can quickly and accurately prepare the tooth on the tooth under the 3D printed tooth preparation guide, avoiding the doctor’s use
  • the guide plates of unequal thickness are prepared to make the penetration depth of the graduated burs consistent and improve the clinical ease of use.
  • the difference between this embodiment and Embodiment 1 lies in that the position of the stop ring 4 in the length direction of the needle body 2 is variable.
  • the stop ring 4 takes the form of a nut and the needle body 2
  • the side surface adopts the thread form, the stop ring 4 can move along the threaded length direction of the needle body, the position is variable, and the depth adjustment is more convenient.
  • the difference between this embodiment and embodiment 1 is that the side of the needle body 2 near the end of the needle 3 is provided with a scale 5, and the scale values include 0.3mm, 0.7mm, 1.5mm ⁇ 2.5mm in turn. , 3.0mm, 4.0mm, if the guide plate is not applicable, a fixed depth hole with a certain depth can also be prepared on the tooth surface; and the area with a scale value of 1.5mm ⁇ 2.5mm is composed of different color areas, so set up, different The scale line can mark the amount of tooth preparation, and the different color areas can make the operator easy to check the color of the drill needle into the tooth, and the easy-to-color area can be read directly to determine whether the predetermined depth is reached.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

用于牙体预备3D打印导板上的预备止动深度标定钻针，包括针柄（1）、针体（2）、针头（3）和止动环（4）。针柄（1）末端与牙科涡轮机配套使用，靠近针头（3）一端的针体（2）侧面上设置有刻度（5）。针头（3）作为工作端，用于切割牙体组织，制备定深孔，针头（3）上设置有锋刃片，针头（3）是一个底端面口径大于针体（2）口径的圆台体，圆台体侧面均匀设置有竖向凹槽。止动环（4）套设于针体（2）上，且止动环（4）口径大于针体（2）口径，止动环（4）口径大于3D打印导板上的孔径。止动环（4）与针头（3）之间的针体（2）侧面设置有刻度（5），设置有刻度（5）的针体（2）口径沿远离针头（3）方向增大。用于牙体预备3D打印导板上的预备止动深度标定钻针，解决了现有的牙体预备工具精准度不高，过程复杂，易出现差错，不便利实用的问题。

Description

用于牙体预备3D打印导板上的预备止动深度标定钻针 技术领域
本发明涉及医疗器械技术领域，尤其涉及用于牙体预备3D打印导板上的预备止动深度标定钻针。
背景技术
牙科美学修复是采取改变牙齿和(或)牙周组织的形态的措施，力求牙齿在美观和功能上取得最大程度的协调，从而使得修复的最终效果最优化。美学修复技术通过磨除部分牙体组织，使用瓷美学材料进行空间替换是目前美学修复中最常用的手段。常用的瓷美学修复技术包括全瓷冠修复、瓷贴面修复等，而瓷贴面修复因其良好的美学性能和牙体保存作用，被认为是目前美学修复中最微创的间接修复治疗手段。对于美学区修复的患者，需要先经美学分析设计，在患者原始牙齿模型的基础上制作美观蜡型，即目标修复体形态，再以目标修复体的形态为指导，进行牙体(预备体)预备，力求精确复制目标修复体为最终修复体。牙体预备是口腔修复科的最基本操作之一，为了最大限度地保存牙体组织，尽量少磨除牙体组织，必须掌握预备体形态与目标修复体的空间位置关系。一般要求预备体外轮廓与目标修复体外轮廓间有一定尺寸的均匀空间间隙，直接涉及牙体组织磨除量的判断和确定。目标修复体空间的设计为微创牙体预备提供了空间蓝图，而如何将设计好的目标修复体空间变为预备的结果，则需要依靠对应的预备引导技术。目前，按照参考对象的不同，牙体预备引导技术可以分为两大类。1)参考原有牙体表面的牙体预备技术，从原有牙体表面均匀地磨除一定厚度的牙体组织。预备方法包括：自由手法(free hand)、定深沟法(groove reference)、球钻法(dimple)、定深车针法(depth cutter)、定深孔法(hole reference)；2)参考目标修复体空间TRS的牙体预备技术，在预备前针对患者的个性化情况设计并制作诊断蜡型，牙体预备参考蜡型的空间进行预备，包括硅橡胶指示导板法(silicone index)、TRS导板法(TRS guide)。
目前口腔临床医生常采取目测磨除量的方法制备预备体，如自由手法、定深沟法、球钻法，此种方法误差较大，修复效果对临床医生的经验依赖性大，尤其是在要改变牙齿形态的修复治疗中。也出现了一些测量预备量的方法，但测量牙齿各个部位的需要预备的量之后，还需医生靠经验和打磨车针的直径粗略地进行预备，常出现造成牙体预备过多(磨过多的牙体组织)或者预备不足(需要再进行测量、预备)的情况。在控制预备深度和均匀度上，定深车针法与定深孔法比较有优势，但是每预备一个位点需要核对一次预备深度，预备不足时还需要再次磨除牙体组织，过程繁琐，容易发生差错，临床上操作时间也较长。
因此，微创、快速的牙体预备亟需一种工具，可以根据测量的预备量进行精确预备。
发明内容
本发明所要解决的技术问题是现有的牙体预备工具精准度不高，过程复杂，易出现差错，不便利实用的问题，本发明提供了解决上述问题的用于牙体预备3D打印导板上的预备止动深度标定钻针，提高3D打印导板引导的牙体预备的手术便利性，采用定深孔预备方法时，根据预设预备深度，选择同一的止动深度，并使用这种有对应止动的深度标定钻针，待钻针钻入一定深度后，止动环到达3D打印导板表面，停止牙体预备。快速确定牙体预备量，在导板引导下快速制备定深孔。避免了医生根据临床经验进行牙体预备所造成的随机性大、误差大的问题，符合“精准”“微创”的主流趋势；相较于普通导板下使用其他刻度车针需要多次反复测量牙体预备量更加快速，节约了临床操作时间，提高了患者的满意度。
本发明通过下述技术方案实现：
用于牙体预备3D打印导板上的预备止动深度标定钻针，钻针包括针柄、针体和针头，所述针柄末端与牙科涡轮机配套使用，靠近针头一端的针体侧面上设置有刻度；所述针头作为工作端，用于切割牙体组织，制备定深孔；针头上设置有锋刃片，针头是一个底端面口径大于针体口径的圆台体，圆台体侧面均匀设置有与锋刃片对应的竖向凹槽，易于针头钻入牙体；
还包括止动环，所述止动环套设于针体上，且止动环口径大于针体口径，止动环口径大于3D打印导板上的孔径；止动环与针头之间的针体侧面设置有刻度；设置有刻度的针体口径沿远离针头方向增大。
工作原理是：本发明采用上述方案通过把止动环套设于针体上，针头上设置有锋刃片，针头是一个底端面口径大于针体口径的圆台体，圆台体侧面均匀设置有竖向凹槽，易于针头钻入牙体内，当钻针的工作端钻头没入导板到设置深度时，止动环到达3D打印导板表面，停止牙体预备，快速确定牙体预备量，在导板引导下快速制备定深孔；该带止动环的深度标定钻针在3D打印牙体预备导板下能够快速精确地在牙体上进行牙体预备，避免了医生使用自由手根据临床经验进行牙体预备所造成的牙体预备量过大或者不足的问题；该带止动环的深度标定钻针能够一次性预备到位，无需反复测量，节约了临床操作时间，提高了患者满意度；成本低廉，与口腔常规使用的涡轮机相匹配，操作简单；可重复多次使用，相较于金刚砂车针使用寿命长。
优选地，所述针头的底端面直径为1.0mm～1.2mm，长1mm～2mm。
优选地，所述止动环套设于针体上，优选如下两种套设方式：
(1)所述止动环固定套设于针体上，且止动环距离针头4mm～10mm，因为3D打印导板 有一定的厚度，设置4mm以上较为合理；3D打印导板可根据需要磨除的牙体量及即将选择的止动刻度车针设计不同的厚度，其中止动环距离针头4mm、6mm、8mm等处均可，当钻针的工作端钻头没入3D打印导板到设置深度时，牙体预备停止，钻针可以高效快速确定牙体预备量，制备定深孔。
(2)所述止动环在针体的长度方向上位置可变，比如，止动环采取螺母形式，针体侧面采用螺纹形式，止动环可以沿针体的有螺纹的长度方向上移动，位置可变，更方便深度调节。
优选地，靠近针头一端的针体侧面上设置有刻度的刻度值依次包括0.3mm、0.7mm、1.5mm～2.5mm、3.0mm、4.0mm，在不适用导板的情况下也可在牙面上制备深度一定的定深孔；且刻度值1.5mm～2.5mm的区域由不同的颜色区域构成；如此设置，不同的刻度线可标记牙体预备量，并且不同的颜色区域能够使得操作医生根据钻针没入牙齿处的颜色，颜色容易区域易于查看，直接读出数值，确定是否达到预定深度。
并且，不同的颜色区域可以采用不同颜色的发光帖，发光帖粘贴于针体侧面对应位置处。
优选地，所述锋刃片的刃数为6～10刃，这样可快速高效切割牙体组织。
优选地，所述针柄、针体、针头、止动环均采用钨钢材质，钨钢材质的钻针可多次使用，耐磨性好，比现有的金刚砂车针使用时间长。
本发明与现有技术相比，具有如下的优点和有益效果：
1、本发明用于牙体预备3D打印导板上的预备止动深度标定钻针，该带止动环的深度标定钻针，待钻针钻入一定深度后，止动环到达3D打印导板表面，停止牙体预备，快速精准确定牙体预备量，在导板引导下快速制备定深孔进行牙体预备，避免了医生使用自由手根据临床经验进行牙体预备所造成的牙体预备量过大或者不足的问题；
2、本发明用于牙体预备3D打印导板上的预备止动深度标定钻针，该带止动环的深度标定钻针能够一次性预备到位，无需反复测量，节约了临床操作时间，提高了患者满意度；成本低廉，与口腔常规使用的涡轮机相匹配，操作简单；可重复多次使用，相较于金刚砂车针使用寿命长。
附图说明
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分，并不构成对本发明实施例的限定。在附图中：
图1为本发明带止动环的深度标定钻针主视结构示意图。
图2为本发明带止动环的深度标定钻针俯视结构示意图。
附图中标记及对应的零部件名称：
1-针柄，2-针体，3-针头，4-止动环，5-刻度。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚明白，下面结合实施例和附图，对本发明作进一步的详细说明，本发明的示意性实施方式及其说明仅用于解释本发明，并不作为对本发明的限定。
实施例1
如图1、图2所示，本发明用于牙体预备3D打印导板上的预备止动深度标定钻针，钻针包括针柄1、针体2和针头3，所述针柄1末端与牙科涡轮机配套使用，靠近针头3一端的针体2侧面上设置有刻度5，所述针头3作为工作端，用于切割牙体组织，制备定深孔；针头3上设置有锋刃片，针头3是一个底端面口径大于针体2口径的圆台体，圆台体侧面均匀设置有与锋刃片对应的竖向凹槽；
还包括止动环4，所述止动环4套设于针体2上，且止动环4口径大于针体2口径，止动环4口径大于3D打印导板上的孔径；止动环4与针头3之间的针体2侧面设置有刻度5；设置有刻度5的针体2口径沿远离针头3方向增大。
本实施例中，钻针总长度为19mm，所述针头3的底端面直径为1.0mm～1.2mm，长1mm～2mm。
本实施例中，所述止动环4固定套设于针体2上，且止动环4距离针头3有4mm～10mm，其中止动环4距离针头3设有4mm、6mm、8mm等处均可，当钻针的工作端钻头没入3D打印导板到设置深度时，牙体预备停止，钻针可以高效快速确定牙体预备量，制备定深孔。
本实施例中，所述锋刃片的刃数为6～10刃，这样可快速高效切割牙体组织。
本实施例中，所述针柄1、针体2、针头3、止动环4均采用钨钢材质，钨钢材质的钻针可多次使用，耐磨性好，比现有的金刚砂车针使用时间长。
工作原理是：通过把止动环4套设于针体2上，当钻针的工作端钻头没入导板到设置深度时，止动环4到达3D打印导板表面，停止牙体预备，快速确定牙体预备量，在导板引导下快速制备定深孔；该带止动环4的深度标定钻针在3D打印牙体预备导板下能够快速精确地在牙体上进行牙体预备，避免了医生使用自由手根据临床经验进行牙体预备所造成的牙体预备量过大或者不足的问题；该带止动环4的深度标定钻针能够一次性预备到位，无需反复测量，节约了临床操作时间，提高了患者满意度；成本低廉，与口腔常规使用的涡轮机相匹配，操作简单；可重复多次使用，相较于金刚砂车针使用寿命长。
实施时：3D打印导板打印前设置出具体的钻针没入长度(即工作端钻头到止动环4的长度)，3D打印导板戴入口腔内，确定导板到位不移动，钻针伸入导板内进行牙体预备；待钻针没入指定长度时，由于止动环4直径比导板孔径大，牙体预备停止，制备出精确的牙体预 备定深孔。
利用数字3D打印技术，制备成不等厚的导板，使得刻度车针的进入深度一致，提高临床的易用性。
实施例2
如图1、图2所示，本实施例与实施例1的区别在于，所述止动环4在针体2的长度方向上位置可变，比如，止动环4采取螺母形式，针体2侧面采用螺纹形式，止动环4可以沿针体的有螺纹的长度方向上移动，位置可变，更方便深度调节。
实施例3
如图1、图2所示，本实施例与实施例1的区别在于，靠近针头3一端的针体2侧面上设置有刻度5的刻度值依次包括0.3mm、0.7mm、1.5mm～2.5mm、3.0mm、4.0mm，在不适用导板的情况下也可在牙面上制备深度一定的定深孔；且刻度值1.5mm～2.5mm的区域由不同的颜色区域构成，如此设置，不同的刻度线可标记牙体预备量，并且不同的颜色区域能够使得操作医生根据钻针没入牙齿处的颜色，颜色容易区域易于查看，直接读出数值，确定是否达到预定深度。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (7)

  1. 用于牙体预备3D打印导板上的预备止动深度标定钻针，钻针包括针柄(1)、针体(2)和针头(3)，所述针柄(1)末端与牙科涡轮机配套使用，靠近针头(3)一端的针体(2)侧面上设置有刻度(5)，其特征在于，所述针头(3)作为工作端，用于切割牙体组织，制备定深孔；针头(3)上设置有锋刃片，针头(3)是一个底端面口径大于针体(2)口径的圆台体，圆台体侧面均匀设置有与锋刃片对应的竖向凹槽；
    还包括止动环(4)，所述止动环(4)套设于针体(2)上，且止动环(4)口径大于针体(2)口径，止动环(4)口径大于3D打印导板上的孔径；止动环(4)与针头(3)之间的针体(2)侧面设置有刻度(5)；设置有刻度(5)的针体(2)口径沿远离针头(3)方向增大。
  2. 根据权利要求1所述的用于牙体预备3D打印导板上的预备止动深度标定钻针，其特征在于，所述针头(3)的底端面直径为1.0mm～1.2mm，长1mm～2mm。
  3. 根据权利要求1所述的用于牙体预备3D打印导板上的预备止动深度标定钻针，其特征在于，所述止动环(4)固定套设于针体(2)上，且止动环(4)距离针头(3)4mm～10mm。
  4. 根据权利要求1所述的用于牙体预备3D打印导板上的预备止动深度标定钻针，其特征在于，所述止动环(4)在针体(2)的长度方向上位置可变。
  5. 根据权利要求1所述的用于牙体预备3D打印导板上的预备止动深度标定钻针，其特征在于，靠近针头(3)一端的针体(2)侧面上设置有刻度(5)的刻度值依次包括0.3mm、0.7mm、1.5mm～2.5mm、3.0mm、4.0mm，且刻度值1.5mm～2.5mm的区域由不同的颜色区域构成。
  6. 根据权利要求1所述的用于牙体预备3D打印导板上的预备止动深度标定钻针，其特征在于，所述锋刃片的刃数为6～10刃。
  7. 根据权利要求1所述的用于牙体预备3D打印导板上的预备止动深度标定钻针，其特征在于，所述针柄(1)、针体(2)、针头(3)、止动环(4)均采用钨钢材质。
PCT/CN2020/103955 2019-09-09 2020-07-24 用于牙体预备3d打印导板上的预备止动深度标定钻针 WO2021047301A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201921508802.8U CN210784803U (zh) 2019-09-09 2019-09-09 用于牙体预备3d打印导板上的预备止动深度标定钻针
CN201921508802.8 2019-09-09

Publications (1)

Publication Number Publication Date
WO2021047301A1 true WO2021047301A1 (zh) 2021-03-18

Family

ID=71234790

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/103955 WO2021047301A1 (zh) 2019-09-09 2020-07-24 用于牙体预备3d打印导板上的预备止动深度标定钻针

Country Status (2)

Country Link
CN (1) CN210784803U (zh)
WO (1) WO2021047301A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210784803U (zh) * 2019-09-09 2020-06-19 四川大学 用于牙体预备3d打印导板上的预备止动深度标定钻针
TWI757171B (zh) * 2021-05-10 2022-03-01 張鴻政 牙科用研磨器具及其使用方法

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026839A1 (en) * 1996-01-24 1997-07-31 Aldo Cehic Device for measuring the length of endodontic canals
CN2324983Y (zh) * 1997-10-06 1999-06-23 刘长存 高速牙科车针
US20020172923A1 (en) * 2001-05-18 2002-11-21 Strong J. Tood Dental drill system and method of use
WO2006009631A1 (en) * 2004-06-17 2006-01-26 Innovadontics Coated dental instruments
CN101448469A (zh) * 2006-05-23 2009-06-03 学校法人日本大学 牙科用切削杆
CN202051831U (zh) * 2011-04-21 2011-11-30 贾虎岗 牙体预备定位车针
CN102631252A (zh) * 2012-05-09 2012-08-15 四川大学 根管工作长度测量针
CN203790059U (zh) * 2014-04-02 2014-08-27 上海道邦磨料磨具有限公司 一种临床备牙用金刚石车针
CN104814804A (zh) * 2015-05-18 2015-08-05 四川大学 前牙美学修复的牙体预备量的测量及其预备方法
CN204671295U (zh) * 2015-05-18 2015-09-30 四川大学 一种用于牙体预备的深度标定钻针
CN105147408A (zh) * 2015-06-17 2015-12-16 四川大学 一种预备牙体的预备量测量装置及其使用方法
CN205514971U (zh) * 2015-12-17 2016-08-31 上海惠而顺精工科技发展有限公司 整体金属陶瓷牙科车针
US20170239022A1 (en) * 2016-02-18 2017-08-24 Shih-Chieh Su Drill head structure for dental handpiece
CN108577987A (zh) * 2018-04-27 2018-09-28 江阴高峰医疗科技有限公司 一种牙科旋转器械硬质合金车针
CN208319340U (zh) * 2017-08-09 2019-01-04 桐乡市睿锋精密工具有限公司 一种平头钨钢高速车针
CN209018983U (zh) * 2017-07-20 2019-06-25 深圳市金洲精工科技股份有限公司 一种牙科车针
CN209332312U (zh) * 2018-09-28 2019-09-03 江苏柯润玺医疗科技发展有限公司 应用于数字化导板种植手术的导板种植钻头
CN209360933U (zh) * 2018-08-31 2019-09-10 武汉大学 一种用于盾构术种植牙的车针及车针套件
CN210784803U (zh) * 2019-09-09 2020-06-19 四川大学 用于牙体预备3d打印导板上的预备止动深度标定钻针

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026839A1 (en) * 1996-01-24 1997-07-31 Aldo Cehic Device for measuring the length of endodontic canals
CN2324983Y (zh) * 1997-10-06 1999-06-23 刘长存 高速牙科车针
US20020172923A1 (en) * 2001-05-18 2002-11-21 Strong J. Tood Dental drill system and method of use
WO2006009631A1 (en) * 2004-06-17 2006-01-26 Innovadontics Coated dental instruments
CN101448469A (zh) * 2006-05-23 2009-06-03 学校法人日本大学 牙科用切削杆
CN202051831U (zh) * 2011-04-21 2011-11-30 贾虎岗 牙体预备定位车针
CN102631252A (zh) * 2012-05-09 2012-08-15 四川大学 根管工作长度测量针
CN203790059U (zh) * 2014-04-02 2014-08-27 上海道邦磨料磨具有限公司 一种临床备牙用金刚石车针
CN104814804A (zh) * 2015-05-18 2015-08-05 四川大学 前牙美学修复的牙体预备量的测量及其预备方法
CN204671295U (zh) * 2015-05-18 2015-09-30 四川大学 一种用于牙体预备的深度标定钻针
CN105147408A (zh) * 2015-06-17 2015-12-16 四川大学 一种预备牙体的预备量测量装置及其使用方法
CN205514971U (zh) * 2015-12-17 2016-08-31 上海惠而顺精工科技发展有限公司 整体金属陶瓷牙科车针
US20170239022A1 (en) * 2016-02-18 2017-08-24 Shih-Chieh Su Drill head structure for dental handpiece
CN209018983U (zh) * 2017-07-20 2019-06-25 深圳市金洲精工科技股份有限公司 一种牙科车针
CN208319340U (zh) * 2017-08-09 2019-01-04 桐乡市睿锋精密工具有限公司 一种平头钨钢高速车针
CN108577987A (zh) * 2018-04-27 2018-09-28 江阴高峰医疗科技有限公司 一种牙科旋转器械硬质合金车针
CN209360933U (zh) * 2018-08-31 2019-09-10 武汉大学 一种用于盾构术种植牙的车针及车针套件
CN209332312U (zh) * 2018-09-28 2019-09-03 江苏柯润玺医疗科技发展有限公司 应用于数字化导板种植手术的导板种植钻头
CN210784803U (zh) * 2019-09-09 2020-06-19 四川大学 用于牙体预备3d打印导板上的预备止动深度标定钻针

Also Published As

Publication number Publication date
CN210784803U (zh) 2020-06-19

Similar Documents

Publication Publication Date Title
WO2021047301A1 (zh) 用于牙体预备3d打印导板上的预备止动深度标定钻针
US6575747B1 (en) Endodontic instruments adapted to provide variable working lengths and related methods for using the instruments
US6213771B1 (en) Incrementally adjustable endodontic instruments
US6863529B2 (en) Dental drill system and method of use
US8434337B2 (en) Method and apparatus for bending a guide post used in forming a template for locating a dental implant hole
US9039413B2 (en) Dental tools for guided surgery
CN107518955B (zh) 一种具有牙槽嵴骨形貌测量功能的口腔种植定位器
JP2013529997A5 (zh)
US20170071696A1 (en) Drilling tool for dental implant surgery, comprising a stepped guide
US4252522A (en) Dental mirror with endodontic file measuring surface
US3445935A (en) Jig to be used in dentistry
BR112013021024B1 (pt) brocas endodônticas, kits, e métodos para utilizar brocas endodônticas
US2280927A (en) Means and apparatus for preparing inlay cavities
US11090140B2 (en) Cavity preparation assembly and guiding sleeve for immediate implantation in oral molar region
NL2030367B1 (en) Depth-calibrated stop bur for tooth preparation guided by three-dimensional (3d)-printed guide
CN210330776U (zh) 一种牙冠定位装置
CN103784209A (zh) 口腔内就位道观测仪
CA2505283A1 (en) Adjustable surveyor table and method of use for adjusting dental implant drill guides
RU2714295C1 (ru) Способ оценки адгезионной прочности в соединении стоматологических материалов с тканями зуба
CN210582682U (zh) 一种种植扩孔钻计次定深标记圈
CN103405275B (zh) 一种可控制切削深度的显微根管环钻
EP2299928A1 (de) Verfahren zur ermittlung von 3d-daten von zumindest einem präparierten kieferbereich
CN209629865U (zh) 带刻度的纤维桩钻
US1417236A (en) Dental instrument
JP6391051B2 (ja) 医療用器具の作業長さ設定・計測具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20863200

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20863200

Country of ref document: EP

Kind code of ref document: A1