WO2011018851A1 - ボーンキャリパー - Google Patents
ボーンキャリパー Download PDFInfo
- Publication number
- WO2011018851A1 WO2011018851A1 PCT/JP2009/064293 JP2009064293W WO2011018851A1 WO 2011018851 A1 WO2011018851 A1 WO 2011018851A1 JP 2009064293 W JP2009064293 W JP 2009064293W WO 2011018851 A1 WO2011018851 A1 WO 2011018851A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bone
- arm
- implant
- main body
- tip
- 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
- 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
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/082—Positioning or guiding, e.g. of drills
- A61C1/084—Positioning or guiding, e.g. of drills of implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
-
- 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
-
- 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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
Definitions
- the present invention relates to a bone caliper used for bone width measurement in implant treatment.
- the implant treatment refers to treatment in which an implant body, which is an artificial tooth root, is implanted in the alveolar bone so as to function in place of the lost tooth.
- a metal such as titanium or hydroxyapatite having high tissue affinity is used.
- FIG. 8 shows a cross section of the main part of the alveolar bone in which the implant body is embedded by the implant treatment.
- the structure of the implant body will be briefly described with reference to FIG. Note that hatching is omitted from the viewpoint of visibility.
- a cylindrical implant hole 44 is formed at a tooth extraction site sandwiched between the teeth 43, 43.
- the implant hole 44 penetrates the cortical bone 41 in the surface layer portion of the alveolar bone 40 and reaches the sea surface bone 42 inside.
- the outer surface of the alveolar bone 40 is covered with a gum 45.
- Screws are formed on the outer peripheral surface of the implant body 50, and the implant body 50 is firmly fixed to the alveolar bone 40 by screwing the implant body 50 into the implant hole 44.
- the implant body 50 is composed of a lower fixture and an upper abutment, and an upper structure 51 such as a metal crown or a ceramic crown is fixed to the upper abutment by bonding or the like. Yes.
- the shape of the coronal section of the alveolar bone 40 (Coronal Section) is measured, and then the implant hole 44 is appropriately set. Need to open in position. If the position where the implant hole 44 is opened is not appropriate, the nerve may be damaged to reach the facial palsy, or the artery near the surface of the alveolar bone 40 may be damaged to cause a bleeding accident.
- the unevenness of the alveolar bone is measured by palpation or bone mapping using a gingival gauge, and the cross-sectional shape is estimated from the result. There is a way. Although this method does not require a large incision in the gingiva, the measurement accuracy of the cross-sectional shape is low, and the risk of damaging nerves and arteries during implant treatment cannot be excluded.
- the present invention has been made in view of such circumstances, and an object thereof is to provide a bone caliper having an optimum structure as means for confirming the position of a guide hole when an implant hole is opened.
- a bone caliper in order to achieve the above object, includes first and second arms whose main body portions are rotatably supported by a shaft, and front ends of the first and second arms.
- a bone caliper configured to measure the distance between the tips of the parts using a scale plate and a pointer attached to the rear part of the main body part, A rod-shaped first measurement part formed at the front end of the first arm;
- a second measuring part having a curved shape formed at the front end of the second arm, The distal end of the second measuring unit is processed into a needle shape and is opposed to the distal end of the first measuring unit.
- a plurality of scales are provided at equal intervals in the first measurement unit.
- the first measurement unit may be detachable from the main body of the first arm. Further, a spherical or teardrop-shaped protrusion may be formed at the tip of the first measurement unit.
- an arc-shaped scale plate is attached to the rear part of one main body part, and a pointer is attached to a position of the rear part of the other main body part facing the scale plate.
- a finger ring is formed at the rear end of each of the first arm and the second arm.
- an implant hole can be opened at an optimal position of the alveolar bone without damaging nerves and arteries.
- an implant treatment safely and reliably and at a lower cost.
- FIG. 1 is a plan view of a bone caliper according to an embodiment of the present invention.
- FIG. 2 is a side view of the bone caliper according to the embodiment of the present invention.
- FIG. 3 is a perspective view of the bone caliper according to the embodiment of the present invention.
- FIG. 4 is a plan view of the distal end portion of a bone caliper in which the arrangement of the probe arm and the vent arm is different.
- FIG. 5 is a cross-sectional view illustrating the first half procedure when implant treatment is performed using the bone caliper according to the embodiment.
- FIG. 6 is a cross-sectional view illustrating the latter half of the procedure when implant treatment is performed using the bone caliper according to the embodiment.
- FIG. 7 is a plan view showing a modification of the probe arm.
- FIG. 8 is a cross-sectional view of a main part of the alveolar bone in which the implant body is embedded.
- ⁇ Bone caliper structure> 1, 2, and 3 are a plan view, a side view, and a perspective view of a bone caliper 1 according to the present embodiment.
- the bone caliper 1 has a shape similar to a heel, and is configured such that the probe arm 2 as the first arm can rotate around the shaft 4 with respect to the vent arm 3 as the second arm. .
- the bone caliper 1 measures the width of the bone sandwiched between the tips of the measurement parts provided at the front ends of the probe arm 2 and the vent arm 3 using the scale plate 6 and the pointer 7 attached to the rear part of each arm. To do.
- the probe arm 2 includes a main body 21 that is rotatably supported by the shaft 4, a thin rod-shaped measuring unit 22 formed at the front end, and a ring 24 formed at the rear end.
- a plurality of ring-shaped grooves functioning as the scales 5 are formed at equal intervals on the outer peripheral surface of the rod constituting the measurement unit 22.
- the vent arm 3 is composed of a main body portion 31 to which the shaft 4 is fixed, a measuring portion 32 that is curved at the front end portion, and a ring 34 that is formed at the rear end portion.
- the distal end 33 of the measurement unit 32 is formed in a needle shape and faces the distal end 23 of the measurement unit 22 of the probe arm 2.
- the shaft 4 is formed integrally with the main body portion 31 of the vent arm 3 and is inserted through a hole formed in the main body portion 21 of the probe arm 2.
- the measurement unit 22 of the probe arm 2 and the measurement unit 32 of the vent arm 3 are inserted into the oral cavity so as to easily measure the bone width of the alveolar bone. It is inclined with respect to.
- An arc-shaped scale plate 6 is attached to the rear part of the main body 21 of the probe arm 2 in a direction orthogonal to the main body 21.
- a pointer 7 is attached to the rear portion of the main body 31 of the vent arm 3 at a position facing the scale plate 6. When the vent arm 3 opens with respect to the probe arm 2, the pointer 7 moves relative to the scale plate 6.
- the numerical value of the scale plate 6 indicated by the pointer 7 indicates the distance between the tip 23 of the measuring unit 22 and the tip 33 of the measuring unit 32, that is, the linear distance.
- the scale plate 6 and the pointer 7 are provided on the upper surface and the lower surface of the bone caliper 1 so that the numerical value indicated by the pointer 7 can be confirmed when viewed from either the top or bottom direction.
- the scale plate 6 is attached to the main body portion 21 of the probe arm 2 and the pointer 7 is attached to the main body portion 31 of the vent arm 3.
- the pointer 7 is attached to the main body portion 21 of the probe arm 2 and vented.
- the scale plate 6 may be attached to the main body 31 of the arm 3.
- the above-described bone caliper 1 of the present invention is used for implant treatment, and measures the bone width which is the distance between the guide hole or the implant hole and the bone surface of the alveolar bone.
- the bone caliper 1 is held on the rings 24 and 34 through the thumb and the middle finger.
- the rod-shaped measuring part 22 of the probe arm 2 is inserted into a guide hole or an implant hole, and pressed against the gingiva until the tip 33 of the measuring part 32 of the vent arm 3 reaches the bone surface of the alveolar bone.
- the numerical value of the scale plate 6 indicated by the pointer 7 is read.
- the numerical value is the bone width (distance) of the alveolar bone sandwiched between the tip 23 of the probe arm 2 and the tip 33 of the vent arm 3.
- FIGS. 4 (A) and 4 (B) show the front part of the bone caliper 1 in which the arrangement of the probe arm 2 and the vent arm 3 is different.
- the vent arm 3 is arranged on the left side of the probe arm 2 as in FIG.
- the vent arm 3 is disposed on the right side of the probe arm 2.
- FIGS. 5A to 5C are cross-sectional views showing the first half procedure of the implant treatment
- FIGS. 6A and 6B are cross-sectional views showing the second half procedure of the implant treatment.
- the same reference numerals are given to the same parts as those described above, and the description will be omitted.
- the alveolar bone 40 shown in FIG. 5 (A) is one in which a tissue is previously formed by GBR or the like, or a bone tissue is formed by natural healing.
- FIG. 5A shows a state where the guide hole 46 is formed in the alveolar bone 40.
- the depth gauge 8 is inserted into the guide hole 46 to check whether the guide hole 46 is formed to a predetermined depth.
- a scale 5 made of a ring-shaped groove is formed at the tip of the depth gauge 8 in the same manner as the measurement part 22 of the probe arm 2. By counting the number of scales 5 exposed from the guide hole 46, the guide hole 46 is counted. Can be measured.
- the bone width of each part of the guide hole 46 is measured using the bone caliper 1. Specifically, with the measuring portion 22 of the rod-shaped probe gauge 2 having a diameter of about 0.9 mm inserted into the guide hole 46, the tip 33 of the measuring portion 32 of the vent arm 3 is pierced into the gum 45 and the alveolar bone 40 is Press until it reaches the bone surface. In this state, the number on the scale plate 6 indicated by the pointer 7 is read.
- FIG. 5C shows a case where the guide hole 46 is formed in the undercut portion of the alveolar bone 40 (the portion where the lower width is narrower than the upper width).
- the guide hole 46 is positioned at an appropriate position. Check if it is formed.
- the case where the position of the guide hole 46 is not appropriate means that the nerve passes nearby, and if the implant hole 44 having a large diameter is formed at that position, the nerve may be damaged, or FIG. As shown, when the alveolar bone 40 is narrow and an implant hole 44 is formed at that position, the tip of the drill may break the wall of the alveolar bone 40 and damage the artery.
- FIG. 6A shows the implant hole 44 formed in this way.
- the position and inclination of the guide hole 46 are repeatedly corrected in an analog sense, so that the implant hole 44 is damaged to nerves and arteries. And can be formed at an optimal position.
- the fixture 52 of the implant body 50 is embedded in the thus formed implant hole 44 using a ratchet or a round screwdriver.
- the diameter of the columnar fixture 52 is slightly larger than the diameter of the implant hole 44, and a screw is formed on the outer peripheral surface. Therefore, when the fixture 52 is screwed into the implant hole 44 using a ratchet or a round screwdriver, the fixture 52 is firmly fixed to the implant hole 44.
- a truncated cone-shaped abutment 53 is attached to the upper portion of the fixture 52.
- a small-diameter bolt is fixed to the lower surface of the abutment 53, and the abutment 53 is fixed to the fixture 52 by screwing the bolt into a nut formed near the central axis of the upper portion of the fixture 52. It is firmly fixed.
- the upper structure 51 indicated by a two-dot chain line is attached to the abutment 53 by adhesion or the like. In this way, the implant treatment is completed.
- FIG. 7 shows a modification of the probe arm 2.
- the measurement unit 22a in FIG. 7A is configured so that the measurement unit 22 of the probe arm 2 shown in FIG. 1 can be detached from the main body unit 21.
- the measurement unit 22a in FIG. The measurement unit 22b shown in FIG. 7 or the measurement unit 22c shown in FIG.
- a spherical protrusion 11 is attached to the tip of the measurement unit 22b shown in FIG.
- a teardrop-shaped protrusion 12 is attached to the tip of the measurement unit 22c shown in FIG.
- a small-diameter bolt 10 is fixed to the rear ends of the measurement portions 22a to 22c of the probe arm 2.
- the measuring portions 22a to 22c can be fixed to the main body portion 21 of the probe arm 2.
- a small-diameter cavity communicating with the guide hole 46 may be formed when the guide hole 46 is formed.
- the depth of the guide hole 46 with which the cavity communicates is measured using the probe arm 2 with the thin measurement part 22a as shown in FIG. 7A, the tip 23 of the measurement part 22a enters the cavity, and the measurement is performed. An error occurs.
- an arm provided with a spherical protrusion 11 at the tip shown in FIG. 7B, or an arm provided with a teardrop-shaped protrusion 12 at the tip shown in FIG. 7B. Use to measure. Since the tip 23 of the probe arm 2 does not enter the cavity communicating with the guide hole 46, the depth of the guide hole 46 can be measured accurately.
- the arm provided with the spherical protrusion 11 at the tip and the arm provided with the teardrop-shaped projection 12 at the tip can be removed from the main body 21 of the probe arm 2, that is, detachable.
- these arms may be formed integrally with the main body 21. In this case, since it is necessary to produce a plurality of bone calipers 1 having different shapes at the tip of the arm, the cost is increased, but it is not necessary to replace the arm, and time can be saved.
- the implant treatment can be performed using the bone caliper 1 of the present embodiment, the position where the implant hole 44 is formed can be confirmed at all times. Can be prevented. Moreover, it is not necessary to use an expensive apparatus such as an X-ray CT scanner, and therefore there is no X-ray exposure, so that the implant treatment can be performed safely at a low cost.
- the bone caliper of the present invention is not limited to this and can be applied to orthopedic or plastic surgery implant treatment. Not too long.
- the bone caliper according to the present invention can be widely used as a means for measuring a bone width between a guide hole or an implant hole and a bone surface in various implant treatments.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Dentistry (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Biomedical Technology (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
前記第1のアームの前端部に形成された棒状の第1の測定部と、
前記第2のアームの前端部に形成された湾曲した形状の第2の測定部と、を備え、
前記第2の測定部の先端は針状に加工されていると共に、前記第1の測定部の先端に対向していることを特徴とする。
図1、図2および図3に、本実施の形態にかかるボーンキャリパー1の平面図、側面図および斜視図を示す。ボーンキャリパー1は鋏に似た形状をしており、第2のアームであるベントアーム3に対し、第1のアームであるプローブアーム2が軸4を中心に回動できるように構成されている。
次に、図5および図6を参照して、本実施の形態にかかるボーンキャリパー1を用いてインプラント治療を行う際の手順を説明する。図5(A)~(C)はインプラント治療の前半の手順を示す断面図、図6(A)、(B)はインプラント治療の後半の手順を示す断面図である。図中、先に説明した図面と同一部分には同一符号を付し、説明を省略する。
図7にプローブアーム2の変形例を示す。図7(A)の測定部22aは、図1に示したプローブアーム2の測定部22を本体部21から取り外すことができるようにしたものであり、目的に応じて、図7(B)に示す測定部22b、または図7(C)に示す測定部22cと取り替えて使用する。図7(B)に示す測定部22bの先端には、球状の突起11が取り付けられている。また図7(C)に示す測定部22cの先端には、ティアドロップ形状の突起12が取り付けられている。
2 プローブアーム
3 ベントアーム
4 軸
5 目盛
6 目盛板
7 指針
8 デプスゲージ
10 ボルト
11、12 突起
21、31 本体部
22、32 測定部
24、34 指輪
40 歯槽骨
44 インプラントホール
45 歯肉
46 ガイドホール
50 インプラント体
51 上部構造体
52 フィクスチャ
53 アバットメント
Claims (6)
- 軸により本体部が相互に回動自在に支持された第1および第2のアームを備え、前記第1および第2のアームの前端部の先端の間隔を、前記本体部の後部に取り付けられた目盛板および指針を用いて測定するように構成されたボーンキャリパーであって、
前記第1のアームの前端部に形成された棒状の第1の測定部と、
前記第2のアームの前端部に形成された湾曲した形状の第2の測定部と、を備え、
前記第2の測定部の先端は針状に加工されていると共に、前記第1の測定部の先端に対向している、ことを特徴とするボーンキャリパー。 - 前記第1の測定部には、複数の目盛が等間隔に設けられている、ことを特徴とする請求項1に記載のボーンキャリパー。
- 前記第1の測定部は、前記第1のアームの本体部に対して着脱自在である、ことを特徴とする請求項1に記載のボーンキャリパー。
- 前記第1の測定部の先端に、球状もしくはティアドロップ状の突起が形成されている、ことを特徴とする請求項1に記載のボーンキャリパー。
- 前記第1および第2のアームのうち、一方の本体部の後部に円弧状の目盛板が取り付けられ、他方の本体部の後部のうち前記目盛板に対向する位置に指針が取り付けられている、ことを特徴とする請求項1に記載のボーンキャリパー。
- 前記第1のアームおよび第2のアームの後端部には、それぞれ指輪が形成されている、ことを特徴とする請求項1に記載のボーンキャリパー。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09848270A EP2465468A1 (en) | 2009-08-13 | 2009-08-13 | Bone calipers |
KR1020127003743A KR20120038486A (ko) | 2009-08-13 | 2009-08-13 | 본 캘리퍼 |
CN2009801608806A CN102548501A (zh) | 2009-08-13 | 2009-08-13 | 骨卡尺 |
PCT/JP2009/064293 WO2011018851A1 (ja) | 2009-08-13 | 2009-08-13 | ボーンキャリパー |
US13/389,107 US20120136364A1 (en) | 2009-08-13 | 2009-08-13 | Bone caliper |
JP2011526667A JPWO2011018851A1 (ja) | 2009-08-13 | 2009-08-13 | ボーンキャリパー |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2009/064293 WO2011018851A1 (ja) | 2009-08-13 | 2009-08-13 | ボーンキャリパー |
Publications (1)
Publication Number | Publication Date |
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WO2011018851A1 true WO2011018851A1 (ja) | 2011-02-17 |
Family
ID=43586037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/064293 WO2011018851A1 (ja) | 2009-08-13 | 2009-08-13 | ボーンキャリパー |
Country Status (6)
Country | Link |
---|---|
US (1) | US20120136364A1 (ja) |
EP (1) | EP2465468A1 (ja) |
JP (1) | JPWO2011018851A1 (ja) |
KR (1) | KR20120038486A (ja) |
CN (1) | CN102548501A (ja) |
WO (1) | WO2011018851A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013126463A (ja) * | 2011-12-18 | 2013-06-27 | Masayoshi Furuya | インプラント用深度ゲージ |
US11497592B2 (en) * | 2017-04-28 | 2022-11-15 | Universidad De La Frontera | Instrument for in situ measurement of the angle of convergence in a dental preparation |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR102012013261A2 (pt) * | 2012-06-01 | 2014-04-01 | Einar Arthur Berger | Colpômetro - medidor do diâmetro do fundo vaginal |
US10123857B2 (en) * | 2014-10-06 | 2018-11-13 | Ibrahim Zakhary | Dental expansion assembly |
US10172683B2 (en) * | 2015-02-18 | 2019-01-08 | Anthony G. Stanley | Measuring devices for medical tools |
CN105287031B (zh) * | 2015-11-12 | 2016-08-17 | 冯毅 | 种植测量导板 |
TR201810609A2 (tr) * | 2018-07-24 | 2018-08-27 | Secaattin Guelsen | Cerrahi̇ operasyonlar i̇çi̇n hassas mesafe ölçer |
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JPS59101475U (ja) * | 1982-12-24 | 1984-07-09 | 和泉電気株式会社 | 端子台の防塵カバ−の取付装置 |
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US1061398A (en) * | 1911-12-26 | 1913-05-13 | Samuel Newman | Tooth-measuring instrument. |
US4718850A (en) * | 1986-08-22 | 1988-01-12 | Stanley Knebelman | Method for determining vertical dimension |
JPH11137581A (ja) * | 1997-11-05 | 1999-05-25 | Aimakkusu:Kk | 歯科用プローブ |
DE202006009576U1 (de) * | 2006-03-07 | 2006-08-17 | Zipplies, Robert, Dr. | Messvorrichtung für oral-implantologische Zwecke |
-
2009
- 2009-08-13 US US13/389,107 patent/US20120136364A1/en not_active Abandoned
- 2009-08-13 KR KR1020127003743A patent/KR20120038486A/ko not_active Application Discontinuation
- 2009-08-13 EP EP09848270A patent/EP2465468A1/en not_active Withdrawn
- 2009-08-13 WO PCT/JP2009/064293 patent/WO2011018851A1/ja active Application Filing
- 2009-08-13 JP JP2011526667A patent/JPWO2011018851A1/ja active Pending
- 2009-08-13 CN CN2009801608806A patent/CN102548501A/zh active Pending
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JPS59101475U (ja) * | 1982-12-24 | 1984-07-09 | 和泉電気株式会社 | 端子台の防塵カバ−の取付装置 |
JPS60195012U (ja) * | 1984-06-04 | 1985-12-26 | 湯川 精一 | 歯槽骨等の骨幅測定器 |
JPH0458225U (ja) * | 1990-09-26 | 1992-05-19 | ||
JPH08224260A (ja) * | 1995-02-23 | 1996-09-03 | Nikon Corp | 歯科用メジャーリングツール |
JP2003245289A (ja) | 2002-02-22 | 2003-09-02 | Univ Nihon | 歯科用インプラント施術支援装置 |
JP2006102440A (ja) * | 2004-10-04 | 2006-04-20 | Akihiro Nishikawa | 顎骨厚み計測器 |
JP2006116271A (ja) * | 2004-10-22 | 2006-05-11 | Akihiro Nishikawa | 顎骨厚み計測ノギス |
WO2008111784A1 (en) * | 2007-03-09 | 2008-09-18 | Doo Man Im | Bone gauge |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013126463A (ja) * | 2011-12-18 | 2013-06-27 | Masayoshi Furuya | インプラント用深度ゲージ |
US11497592B2 (en) * | 2017-04-28 | 2022-11-15 | Universidad De La Frontera | Instrument for in situ measurement of the angle of convergence in a dental preparation |
Also Published As
Publication number | Publication date |
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US20120136364A1 (en) | 2012-05-31 |
CN102548501A (zh) | 2012-07-04 |
KR20120038486A (ko) | 2012-04-23 |
EP2465468A1 (en) | 2012-06-20 |
JPWO2011018851A1 (ja) | 2013-01-17 |
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