WO2020171664A2 - 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지 - Google Patents
천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지 Download PDFInfo
- Publication number
- WO2020171664A2 WO2020171664A2 PCT/KR2020/002589 KR2020002589W WO2020171664A2 WO 2020171664 A2 WO2020171664 A2 WO 2020171664A2 KR 2020002589 W KR2020002589 W KR 2020002589W WO 2020171664 A2 WO2020171664 A2 WO 2020171664A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gauge
- boundary
- fixture
- tolerance
- perforated hole
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0089—Implanting tools or instruments
-
- 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
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
Definitions
- the present invention relates to a tolerance correction gauge for checking a tolerance between a perforated hole boundary and a fixture boundary, and selecting a fixture of a suitable size for correcting the tolerance.
- an implant is a dental treatment technique that restores the function of natural teeth by implanting artificial teeth made of a material with excellent biocompatibility, for example, a titanium-based metal material, in the jawbone at the location where the teeth are deficient or where the teeth were extracted, or It refers to the artificial tooth itself. If the jawbone at the site where the implant is to be placed is insufficient, the volume of the bone tissue is increased to sufficiently wrap the implant through additional surgery such as bone graft and bone kidney surgery, and then the implant is planted.
- a material with excellent biocompatibility for example, a titanium-based metal material
- These implants have various structures, and as can be seen from various known documents, they are basically composed of elements of a fixture, an abutment, and an artificial crown.
- the fixture is formed in the shape of a screw made of a material with excellent biocompatibility, and the tooth is implanted into the lost alveolar bone and fused with the bone, and the abutment is an upper structure that is equipped with an artificial crown for mastication and beauty. It is combined with the lower fixture by a screw structure or force-fitting method.
- dental implants like this have established themselves as an important prosthesis method that cannot be excluded from dental treatment due to the concept of treating only the missing teeth and its biomechanical excellence. And due to the expansion of medical insurance, many surgeries are in progress.
- the surgical side effects or failure rate of implant surgery reaches 61%, which should be distinguished from the simple dental implant success rate of 95% in papers.
- the biocompatibility of the implant itself may be excellent under controlled conditions, but the substantial success rate of implant surgery, which is generally widely performed, is coming out low due to various factors, which increases patient discomfort and pain, and dentistry It is not easy to receive compensation for damages due to the specificity of the field, and it is true that the patient's distrust is deepening and another social conflict due to the accumulation and spread of damage cases in the end.
- Implant failure which is a factor in such medical and social problems, can occur due to various causes.
- the final criterion for determining failure is whether the contact between the alveolar bone and the fixture is a direct contact between the alveolar bone and the fixture surface, or is there a difference between them. Whether it is filled with inflammatory tissues or soft tissues, or if soft tissues and inflammatory tissues are infiltrated, it is determined by how much invasion in which part. And, due to this aspect of invasion, the fixture itself finally becomes loose within the alveolar bone, which can be expressed as torque loss if expressed in engineering.
- the present invention is more directly related to medical errors rather than implant dropout due to problems in use and management, and focuses on the relationship between initial implantation and alveolar bone and fixture, which must be carried out with particular care.
- the fixture should be in close contact with the alveolar bone at the time of initial placement.
- the cells in the alveolar bone or alveolar bone tissue should not be pressure necrosis due to excessive adhesion, and 3) the tolerance between the fixture and alveolar bone is large, so that the inflammatory tissue or soft tissue does not grow earlier than the bone tissue due to the gap between them.
- the clinical standard is 35 Ncm, and it is expressed that stable fixation is achieved only when the torque is about 35 Ncm. Since it is a torque value that can be derived and confirmed after inserting and fixing the fixture in the formed hole, the desired torque is The loss of time and labor that occurs when it does not come out, and the failure of ossification or replacement of fixtures that may occur can lead to economic and reliability problems.
- the difficulty in implementing the ideal torque can be compensated to some extent due to the taper implant in the appearance of the fixture, because the gap created by the occurrence of tolerance can be narrowed by placing the fixture deeper than the planned height in the case of a taper shaped implant. .
- the gap created by the occurrence of tolerance can be narrowed by placing the fixture deeper than the planned height in the case of a taper shaped implant.
- the drilling hole formed through the drilling drill during the actual drilling hole creation process differs from time to time due to the characteristics of the alveolar bone and the technique of the operator, which varies for each patient and for each treatment site. It is enlarged, which may lead to inconsistent surgical results.
- the problem in the initial fixation is due to the'dilated hole' in which the drilled hole is formed larger than the desired size.
- the present invention is to solve the problem of initial placement of an implant as described above, by measuring the expanded aspect (change in appearance and size) of a perforated hole and selecting and placing a fixture suitable for it, so that it is different each time during the perforation process.
- the purpose of this is to provide a gauge for correcting the tolerance between the perforated hole boundary and the fixture boundary so that the contact relationship between the implant fixture and the perforated hole can be expressed by meeting clinical criteria for possible expansion of the perforated hole.
- the present invention relates to a gauge for correcting a tolerance between a perforated hole boundary and a fixture boundary, comprising: a gauge portion formed with an outer diameter corresponding to the valley diameter of a fixture thread and formed of a smooth surface; and a gauge portion extending from one end of the gauge portion and greater than the outer diameter of the gauge portion. It includes a holding portion formed with a small outer diameter.
- the gauge portion may have a cylindrical surface.
- the gauge portion may be formed of a first cylindrical surface positioned at a tip end, and a second cylindrical surface extending from the first cylindrical surface and having a larger outer diameter.
- the cylindrical surface of the gauge portion may form a plurality of steps to correspond to the valley diameters of the plurality of fixture threads.
- a tolerance grade band indicating the outer diameter stage of the cylindrical surface may be formed on the gripping portion.
- the gauge portion may be formed of a truncated cone.
- a plurality of outer diameter indicator strips may be concavely formed on the inclined surface of the truncated cone.
- the gauge for tolerance correction between the perforation hole boundary and the fixture boundary of the present invention may have a gripping groove formed adjacent to the tip of the gripping part.
- the gauges for tolerance correction between the perforation hole boundary and the fixture boundary are provided in a number corresponding to a plurality of fixtures having different rib diameters to form one set.
- the tolerance correction gauge of the present invention as described above can contribute to improving the success rate of implant surgery and reducing patient discomfort and pain as it is possible to grasp the tolerance between the perforation hole boundary and the fixture boundary in advance before placing the fixture in the perforated hole. There will be.
- the present invention can cope with a wide variety of implant fixtures used in the market by providing a gauge for tolerance correction in various embodiments.
- FIG. 1 is a diagram showing a first embodiment of the present invention.
- FIGS 2 to 4 are diagrams showing various embodiments of the first embodiment of the present invention.
- FIG. 5 is a diagram showing a second embodiment of the present invention.
- FIG. 6 is a diagram showing another embodiment of the second embodiment of the present invention.
- cylindrical surface 111 first cylindrical surface
- gripping portion 210 gripping groove
- first, second, A, B, (a), (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term.
- FIG. 1 is a diagram showing a first embodiment of the present invention, with reference to this, for a tolerance correction gauge 10 (hereinafter, simply referred to as a'tolerance correction paper') between a perforated hole boundary and a fixture boundary of the present invention. It will be described in detail.
- a tolerance correction gauge 10 hereinafter, simply referred to as a'tolerance correction paper'
- Tolerance correction gauge 10 of the present invention comprises a gauge portion 100 and a gripping portion 200 divided largely.
- the gauge portion 100 is formed with an outer diameter corresponding to the valley diameter of the fixture thread, and is a portion made of a smooth surface.
- the shape and size of the gauge part 100 are important.
- the gauge part 100 is made of a cylindrical surface 110, which is made in a shape corresponding to a cylindrical fixture.
- the gauge portion 100 is formed with an outer diameter corresponding to the valley diameter of the fixture thread, which is inserted into the perforation hole of the alveolar bone by inserting the gauge portion 100 of the gauge 10 for tolerance correction to the boundary between the perforation hole and the fixture boundary. This is to check the tolerance.
- the sensory part requires some skill and clinical experience, but generally, if the gauge part 100 is inserted without difficulty while feeling a little resistance, it can be guaranteed that the perforated hole is formed with an appropriate tolerance, and the fixture for the perforated hole The proper torque for the fixture is secured because the thread of the screw is in a tolerance state that can be fastened to a sufficient depth.
- the tolerance correction gauge 10 of the present invention allows one of the important factors of the failure of implant surgery to be removed from the beginning by allowing the tolerance state to be checked before the fixture is placed in the perforation hole, which in turn enables implant surgery. It can positively contribute to improving the success rate of patients, alleviating patient discomfort and pain, and further reducing medical and social conflicts.
- the gripping portion 200 refers to a portion protruding and extending from the gauge portion 100 so that the gauge 10 for tolerance correction can be held and operated with a finger.
- the gripping part 200 is made with a very small outer diameter compared to the perforated hole and the gauge part 100 so that interference does not occur when the perforated hole is inserted.
- FIGS. 2 to 4 are diagrams showing various other embodiments of the first embodiment of the present invention, and main features of each embodiment are described below.
- FIG. 2 is an embodiment in which a tolerance grade band 220 indicating the outer diameter stage of the cylindrical surface 110 is formed on the gripping portion 200.
- Cylindrical fixtures are provided in various types whose diameter is divided into several stages (organized by manufacturers, largely composed of two series), in response to this, it is necessary to prepare the tolerance correction gauge 10 in several stages with different outer diameters. have.
- the tolerance correction gauge 10 is provided in a number corresponding to a plurality of fixtures having different rib diameters to form one set.
- each tolerance correction gauge 10 since each tolerance correction gauge 10 has almost the same appearance, it may be useful to give each tolerance correction gauge 10 a mark that can easily recognize its size or stage (of course, even if this mark is not present, use But it is okay).
- the tolerance grade bands 220 of the gripping part 200 shown in FIG. 2 are the number and indicate the size or step of the corresponding tolerance correction gauge 10.
- the tolerance grade band 220 is formed in two rows, which indicates that the corresponding tolerance correction gauge 10 corresponds to the second step (size).
- the embodiment of FIG. 3 is a first cylindrical surface 111 in which the cylindrical surface 110 of the gauge part 100 is located at the tip, and a second cylindrical surface having a larger outer diameter and extending from the first cylindrical surface 111. It is made of a two-stage structure of the surface 112. This is related to the shape of the fixture.
- a fixture having a two-stage structure is presented as an embodiment. That is, the embodiment of FIG. 3 is a gauge 10 for tolerance correction for corresponding to a two-stage fixture.
- FIG. 4 shows a gauge 10 for tolerance correction in which a plurality of steps 114 are formed so that the cylindrical surface 110 of the gauge unit 100 corresponds to the valley diameter of a plurality of fixture threads, respectively.
- the tolerance correction gauge 10 of FIG. 4 is provided to correspond to various types of fixtures with one tolerance correction gauge 10. This embodiment has an advantage in that not only can be used for fixtures of several stages with one tolerance correction gauge 10, but also in that it is possible to select the most suitable fixture for the current state of the drilled hole with a single measurement.
- Figure 5 is a view showing a second embodiment of the present invention, the gauge portion 100 is made of a truncated cone inclined surface 120.
- the tolerance correction gauge 10 of FIG. 5 is for corresponding to a tapered fixture. That is, the second embodiment is provided so as to check the tolerance state of the perforated hole formed in the shape of a truncated cone in order to place a tapered fixture.
- a plurality of outer diameter indicator strips 122 may be concavely formed at regular intervals. Since the outer diameter of the truncated cone 120 continuously changes along the longitudinal direction of the gauge part 100, the tolerance level can be grasped in the embodiment of FIG. 5, but the largest diameter of the perforated hole entrance is actually You can't know if it's. This is also related to the depth of the perforated hole, and in order to determine the depth at which the tapered fixture is placed in the perforated hole, it is necessary to know the depth of the perforated hole or the largest diameter of the perforated hole entrance.
- the gripping groove 210 may be formed adjacent to the tip of the gripping part 200.
- the gripping groove 210 is provided to reinforce the grip when gripping the gripping part 200 with a finger, and is to prevent an accident that is missed from the hand and falls into the mouth of the patient while using the tolerance correction gauge 10.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Dental Prosthetics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
Description
Claims (9)
- 픽스쳐 나사산의 골지름에 대응하는 외경으로 형성되고, 매끈한 표면으로 이루어진 게이지부; 및상기 게이지부의 일단으로부터 연장되고, 상기 게이지부의 외경보다 작은 외경을 형성된 파지부;를 포함하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제1항에 있어서,상기 게이지부는 원통형 표면으로 이루어진 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제2항에 있어서,상기 게이지부는 선단에 위치한 제1 원통형 표면과, 상기 제1 원통형 표면으로부터 연장되고 외경이 더 큰 제2 원통형 표면으로 이루어진 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제2항에 있어서,상기 게이지부의 원통형 표면은 복수의 픽스쳐 나사산의 골지름에 각각 대응하도록 복수의 단차를 이루는 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제2항에 있어서,상기 파지부에는 상기 원통형 표면의 외경 단계를 표시하는 공차등급 띠가 형성되어 있는 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제1항에 있어서,상기 게이지부는 원뿔대 경사면으로 이루어진 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제1항에 있어서,상기 원뿔대 경사면에는 일정 간격으로 복수의 외경 표시띠가 오목하게 형성되어 있는 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제1항 내지 제7항 중 어느 한 항에 있어서,상기 파지부의 선단에 인접하여 파지홈이 형성되어 있는 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
- 제1항 내지 제7항 중 어느 한 항에 있어서,상기 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지는 나사산의 골지름이 서로 다른 복수의 픽스쳐에 대응하는 개수로 구비되어 하나의 세트를 이루는 것을 특징으로 하는 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020190020885A KR20200102658A (ko) | 2019-02-22 | 2019-02-22 | 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지 |
KR10-2019-0020885 | 2019-02-22 |
Publications (2)
Publication Number | Publication Date |
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WO2020171664A2 true WO2020171664A2 (ko) | 2020-08-27 |
WO2020171664A3 WO2020171664A3 (ko) | 2020-12-03 |
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PCT/KR2020/002589 WO2020171664A2 (ko) | 2019-02-22 | 2020-02-24 | 천공홀 경계와 픽스쳐 경계 사이의 공차보정용 게이지 |
Country Status (2)
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KR (2) | KR20200102658A (ko) |
WO (1) | WO2020171664A2 (ko) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0584489A1 (en) * | 1992-08-25 | 1994-03-02 | American Cyanamid Company | Sizing device for sizing an opening in a hollow body organ |
JP2000333974A (ja) * | 1999-05-26 | 2000-12-05 | Taihei Kogyo Kk | 歯間ゲージ |
JP2012024247A (ja) * | 2010-07-22 | 2012-02-09 | Hirohiko Kitamura | インプラント植設用穿孔深さゲージ |
JP5303082B2 (ja) * | 2011-12-18 | 2013-10-02 | 昌義 古谷 | インプラント用深度ゲージ |
KR20140136547A (ko) * | 2013-05-20 | 2014-12-01 | (주) 한신기전 | 기어류의 내경 측정용 핀 게이지 |
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2019
- 2019-02-22 KR KR1020190020885A patent/KR20200102658A/ko not_active Application Discontinuation
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2020
- 2020-02-24 WO PCT/KR2020/002589 patent/WO2020171664A2/ko active Application Filing
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2021
- 2021-04-20 KR KR1020210050943A patent/KR20210062598A/ko active Application Filing
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Publication number | Publication date |
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KR20210062598A (ko) | 2021-05-31 |
WO2020171664A3 (ko) | 2020-12-03 |
KR20200102658A (ko) | 2020-09-01 |
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