WO2005053566A1 - Dispositif d'aide pour pate a empreintes d'implant et son procede d'utilisation - Google Patents

Dispositif d'aide pour pate a empreintes d'implant et son procede d'utilisation Download PDF

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Publication number
WO2005053566A1
WO2005053566A1 PCT/KR2004/000147 KR2004000147W WO2005053566A1 WO 2005053566 A1 WO2005053566 A1 WO 2005053566A1 KR 2004000147 W KR2004000147 W KR 2004000147W WO 2005053566 A1 WO2005053566 A1 WO 2005053566A1
Authority
WO
WIPO (PCT)
Prior art keywords
stent
assistant
drill
implant
connecting hole
Prior art date
Application number
PCT/KR2004/000147
Other languages
English (en)
Inventor
Jong-Pil Kim
Original Assignee
Jong-Pil Kim
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 Jong-Pil Kim filed Critical Jong-Pil Kim
Publication of WO2005053566A1 publication Critical patent/WO2005053566A1/fr

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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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2201/00—Material properties
    • A61C2201/005—Material properties using radio-opaque means

Definitions

  • the present invention relates to an assistant for implant stent and method for using the same, more particularly to an assistant for implant stent and method for using the same to insert implant into the alveolar bone of a patient more precisely and safely.
  • Implant is a kind of assistant hardwares which is used to treat a troubled or missing tooth, and one of the recently highlighted medical technologies because it can be not only operated individually without relying on adjacent teeth for support but also used semi-permanently.
  • a drill is used to establish the location of the implant on the alveolar bone of a patient, the implant is inserted, and an artificial tooth is attached on it.
  • Fig. 1 the stent used for a traditional implantation is illustrated.
  • the stent is used to guide the precise implant placement by making a model of the artificial tooth operated to a patient previously before placing the implant, is manufactured from resin(acryle) as illustrated, and is inserted to the adjacent tooth.
  • the inserting process of an implant using a stent is as follows. First, the engraved shape of the upper and lower jaws of a patient is acquired by using imprint material of rubber, and the plaster model same with the shape of the upper and lower jaws of a patient is made by pouring plaster into the engraved shape.
  • the interrelation between the temporomandibular joint and the teeth of the upper and lower jaws similar to the state of a patient is revived outside of mouth.
  • the model is made and used as a stent by predicting the final shape of an artificial tooth to be acquired before operation.
  • the center part of the model of the artificial tooth formed in the stent is the location where the implant is inserted, and forming a hole for a drill in this part completes manufacturing the stent .
  • the range of tolerance of a drill and the error of boring angle are small when the alveolar bone is bored, but in case that the size of the hole is small the boring angle cannot be changed because the drill is held to the wall of this hole and the angle of boring cannot be changed.
  • a drill during the boring can be significantly shaken, or the operator can err in determining an angle of boring.
  • the scale confirmation of a drill in boring of the alveolar bone is conducted in the surface of the alveolar bone, but that part is far away from sight, the sight in operation is narrow, the sight of operation part can be dim due to the blooding during operation and it becomes difficult for an operator to confirm the scale of drill, so a complication can be induced due to the excessive boring in operation.
  • the present invention was invented to overcome the defects associated with conventional technologies, and it is an object of the present invention to provide an assistant for implant stent to bore a hole precisely and rapidly by equipping on conventional stent and supporting the drill more stably in boring the hole for inserting the implant to the alveolar bone of a patient. And, It is another object of the present invention to provide an assistant for implant stent with which the depth of hole to be bored is measured precisely and easily in boring the hole to insert the implant to the alveolar bone of a patient.
  • the assistant for implant stent according to the present invention is to insert the guiding part into conventional stent for implant after boring, and to bore the alveolar bone of a patient after inserting a drill through the drill connecting hole formed in the guiding part.
  • the assistant for stent can be equipped inside an inserting guide entrance after the inserting guide entrance made of plastic or metal is equipped in the stent. In this time, it is desirable that the assistant for stent is made of metal, more desirably stainless steel so that the drill is supported more stably.
  • the diameter of the drill connecting hole formed in the assistant for stent can be equal to the diameter of the drill, so precise boring is possible because the shake of the drill can be prevented during the operation.
  • the boring of an alveolar bone for the transplantation requires several drillings with gradually increasing diameter, in this every drilling the assistants having different drill connecting holes should be replaced.
  • the single body assistant can be thought that only the small drill connecting hole is withdrawn after the job of drill of small diameter and the job of great drill is conducted.
  • the drill connecting hole is inclined from a supporting part.
  • a proper assistant of assistants for the stent with various inclination angles of the drill connecting hole can be selected and inserted depending on a patient, thus the drill can be supported stably.
  • the alveolar bone is bored by inserting the most basic assistant with a drill connecting hole and inserting the drill into a drill connecting hole.
  • the assistant is inserted to the stent and the alveolar bone is bored by a drill, wherein the assistant having the drill connecting hole accordance with the center of the occlusion face of an artificial tooth, that is the path from the uppermost part of the drill inserting way to the way connected to the boring part of the upper end of alveolar bone, in other words same inner and outer inclination angle, is selected. , . Therefore, it is profitable to previously prepare assistants with various heights and inclination angles.
  • the present invention also provides an assistant for the implant stent which the drill connecting hole is formed inside to communicate, protrusion is formed at the lower end part of, and is inserted from the upper part of the implant stent.
  • an assistant for the implant stent which the drill connecting hole is formed inside to communicate, protrusion is formed at the lower end part of, and is inserted from the upper part of the implant stent.
  • the area of the upper face of the assistant for stent is smaller than that of the tooth engraved on stent, and the outline of the tooth can be maintained as it is. It is also helpful to predict the direction and location of boring in a particular situation of removing the assistant and operating in conventional method in case that the assistant cannot be used under the operation.
  • this assistant can be reclaimed in the stent and the upper face of the assistant for stent is located lower than the occlusion face of the tooth, the operation is possible with a shorter drill and the lower end face of the assistant for stent is also supported, so it is more stable. That is, because the size of mouth of a patient is various but it is not general, the length of drill usable in operation is limited. Therefore, the fact that same operation with a shorter drill is possible makes the assistant for stent according to the present invention be usable in more cases.
  • the depth of boring can be measured by referring to the length of the assistant for stent inserted.
  • the assistant for stent of 10mm is used, and bored to a marking point on the surface of the assistant for stent after marking the 15mm point from the end of the drill, one can bore precisely to the depth of 5mm.
  • the lower end of the assistant of the stent is wide, in case that the surface of the alveolar bone is engraved, surface of the bone of the boring part cannot be contacted because the side of the lower end of the assistant is caught by the bone around.
  • the contact area can be formed narrowly by narrowing the width of the lower end part of the assistant.
  • the shape of the lower end part can be formed like a cylinder with a small diameter or a cone.
  • the wall of a drill connecting hole prevents the piece of bone from separating from the groove of drill, and becomes easy to collect the piece of bone.
  • the piece of bone collected here can be used usefully in the self-bone transplantation operation. In above case, it is desirable to form the drill connecting hole to be inclined downwardly, or the width of said drill connecting hole is expanding as it goes to the lower end, and to be suitable for various locations of the alveolar bone.
  • the present invention provides an assistant for implant stent comprising: a supporter of which the lower end face is in contact with an alveolar bone, and the girth of the upper end face supports the lower face of a stent; and a connecting part which is located in the upper end face of said supporter, and inserted into the hole of the stent; wherein a drill connecting hole is formed to communicate between said supporter and said connecting part.
  • the magnification of X-ray picture can be confirmed easily by comparing the length of image of the picture with the length of the stick for measuring real magnification.
  • the stick for measuring magnification can be made of material such as metal, and it is desirable that the shape is like stick with both sharp ends to measure precise length on the X-ray picture, and it can be used in every kind of the assistant for stent disclosed in the present invention.
  • the stick for measuring magnification indicates the direction of the implant, that is the direction of boring, so it helps predicting previously whether the anatomic structures such as teeth around, nerves and so on are injured or not before operation.
  • the present invention also provides a method for using the assistant for implant stent comprising the steps of: making plaster cast of upper and lower jaws, and applying the caster of upper and lower jaws into an articulator corresponding to a temporomandibular joint to accord the occlusion state of a patient; making a stent having a pattern of an artificial tooth at an expected part to be implanted; determining an optimum boring location and direction on the plaster cast; incising gingiva of a patient; checking if the direction of the drill connecting hole of the assistant of the stent is in the same direction of the boring of an alveolar bone after equipping the stent with the assistant inserted, and indicating an accurate boring portion on the upper end of the alveolar bone if it is not ; selecting an assistant having the drill connecting hole toward the boring portion indicated on the alveolar bone at the center of the occlusion face and positioning it on the stent; and boring the alveolar bone by inserting a drill into the drill connecting hole.
  • Fig. 1 is a perspective view illustrating a conventional stent for implant.
  • Fig. 2 is a perspective view illustrating the state that first embodiment of stent for implant according to the present invention is equipped in stent.
  • Fig. 3 is a perspective illustrating the embodiment illustrated in Fig.2.
  • Fig. 4 is a sectional view for A- A' in Fig. 2.
  • Fig. 5 is a sectional view for B-B' in Fig. 2.
  • Fig. 6 is a perspective view illustrating the second embodiment of stent for implant according to the present invention.
  • Fig. 7 is a sectional view for C-C in Fig. 6.
  • Fig. 8 is a perspective view illustrating the third embodiment of stent for implant according to the present invention.
  • Fig. 1 is a perspective view illustrating a conventional stent for implant.
  • Fig. 2 is a perspective view illustrating the state that first embodiment of stent for implant according to the present invention is equipped in stent
  • Fig. 9 is a sectional view for D-D' in Fig. 8.
  • Fig. 10 is a perspective view illustrating the hole forming device used in manufacturing the embodiment illustrated in Fig. 8.
  • Fig. 11 is a perspective view illustrating the state of use of the hole forming device illustrated in Fig. 10.
  • Fig. 12 is a perspective view illustrating the fourth embodiment of stent for implant according to the present invention.
  • Fig. 13 is a sectional view for E-E' in Fig. 12.
  • the first embodiment 100 generally has the shape of T, and a supporting part 110 with the shape of flat plate is formed in the upper part.
  • the supporting part 110 is generally shaped like ellipse, and the guiding part 120 is formed in the back face of the supporting part 110.
  • the guiding part 120 is inserted into the stent hole 14, and a drill connecting hole 130 is formed to communicate with the supporting part 110 and the guiding part 120.
  • a taper part can be formed in the entrance part to insert a drill easily in the drill connecting hole 130.
  • the first embodiment 100 is inserted from the upper part of the stent 10, and the lower part is located separated from the alveolar bone 16.
  • the boring is started.
  • the diameter of the drill connecting hole 130 is set a little greater than the diameter, of the drill 18. Therefore, it is necessary to select the assistant for stent corresponding to the drill used.
  • the peak of alveolar bone can be located out of the lower part of the assistant for stent.
  • the assistant for stent having the drill connecting hole 130 formed by not rising vertically but inclining is selected and equipped. That is, ready-made assistants having various angles of the drill connecting hole 130 can be used depending on various situations. Therefore, in case that the drill is arranged and bored not vertical but inclined, the safe and precise operation is possible.
  • the second embodiment 200 of the assistant for stent according to the present invention is illustrated.
  • the second embodiment 200 is same with the first embodiment except that it is supported on the stent in the lower part of the assistant instead of that it is supported on the stent in the upper part It in the first embodiment.
  • the second embodiment 200 comprises a body 210, and a protrusion 220 protruded from the lower face of the body 210, due to the border of this the protrusion 220 and the body 210 is shaped like stairs.
  • a drill connecting hole 230 is formed to communicate the entire of the protrusion 220 and the body 210.
  • Fig. 7 is for description of the function of the second embodiment 200, and is relevant to the Fig. 4 basically.
  • the alveolar bone can be bored in same depth by using a shorter drill, so the cases of using in the second embodiment increase compared to those in the first embodiment.
  • assistants having various inclined angles of the drill connecting hole can be pre-made and used according to the location of the alveolar bone of a patient.
  • the third embodiment 300 of the assistant for stent according to the present invention comprises one body 310 with same sectional shape to the entire, and a drill connecting hole 320 formed through it to communicate.
  • the side of the body 310 is a plane not a curve, this is for fixing tightly and not rotating when it is inserted to a stent
  • the third embodiment is different from the embodiments mentioned above in that the lower end face of the body 310 is in contact with the alveolar bone 16. That is, as is illustrated in Fig. 9 after equipping the stent 30 on the tooth of a patient, the third embodiment 300 is inserted in the stent hole 32 until the lower end face is contacted with the alveolar bone 16.
  • the depth of boring can be confirmed easily through this.
  • assistants having various inclined angles of the drill connecting hole can be pre-made and used adequately in operation.
  • the shape of the stent hole 32 is not circle, so it is impossible to manufacture by drilling. Therefore, it is desirable to use a hole forming device 350 illustrated in Fig. 10.
  • the hole forming device 350 comprises a forming part 352 with the same section with the body 310, and a cylindrical connecting part 354 extended from the lower face of the forming part 352. As is illustrated in Fig.
  • the fourth embodiment 400 of the assistant for stent according to the present invention has basically the shape of turned over the first embodiment.
  • a supporter 410 is located, the lower end face of the supporter 410 is placed on the upper end of the alveolar bone incised, and in the center of the upper face of the supporter 410 the connecting part 420 which is inserted to the stent hole 42 of the stent 40 is formed.
  • the width of the connecting part 420 is narrower than that of the supporter 410, and the drill connecting hole 430 is formed to communicate through the connecting part 420 and the supporter 410.
  • the fourth embodiment is equipped from the lower part of the stent, the lower face of the supporter 410 is located on the alveolar bone 16, and the girth in the upper face of the supporter 410 supports the stent in the state of in contact with the lower face of the stent 40. In case of transplanting many implants the stent can be supported more stably through this.
  • the fourth embodiment can be the shape of rotating to 90 degree. That is, by equipping to be located that the longitudinal direction of the wings protruded to both sides in the supporter 410 is vertical to the going direction of the alveolar bone, the enough distance between adjacent assistants for the stent assistant can be secured.
  • the induction of a drill by the assistant prevents the frill from shaking in boring and makes the stable and precise boring of an alveolar bone possible.
  • the boring angle predicted and determined out of mouth can be revived in the mouth in real operation, the result of operation can be predicted to some extent before operation. Similar to a real operation process, perfect parallel is pursued between front and back and between inner and outer among several implants on the mouth model with surveyor(shelf) out of mouth, and even if it is the state of no gingival exfoliation, by conducting the sham boring on the part decided to be the best and applying the angle of boring to the assistant for stent, more mechanical result can be pursued.
  • an assistant can be used as a tool to correct the ratio of magnification in X-ray picturing, and specially an accurate magnification ratio of X-ray picture can be determined by inserting the stick for measuring magnification .
  • the operation can be conducted in conventional method by removing the assistant.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Dental Prosthetics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)

Abstract

L'invention concerne un dispositif d'aide pour pâte à empreintes d'implant et l'utilisation d'une méthode associée. Ledit dispositif d'aide pour pâte à empreintes d'implant comprend une partie de support en forme de plaque et une partie de guidage qui s'étend de la partie centrale de ladite partie de support et dans laquelle est formée un trou de fixation de foret pour la communication, ledit dispositif d'aide étant introduit à partir de la partie supérieure de la pâte à empreintes d'implant. Cette invention a aussi pour objet une méthode d'utilisation dudit dispositif d'aide qui consiste à élaborer un plâtre de bouche et à le monter, à fabriquer une pâte à empreintes à partir du plâtre conçu, à forer un trou dans le milieu de la pâte à empreintes, à inciser la gencive d'un patient, à fixer ladite pâte à empreintes fabriquée, à vérifier l'emplacement du trou foré sur la pâte à empreintes et à marquer l'extrémité supérieure de l'os alvéolaire, à sélectionner un dispositif d'aide en fonction du marquage sur l'os alvéolaire et à le fixer sur le trou de la pâte à empreintes et, enfin, à forer après insertion du foret dans le trou de fixation de foret du dispositif d'aide pour pâte à empreintes. Selon ladite invention, lorsque l'os alvéolaire d'un patient est foré, étant donné que le dispositif d'aide métallique pour pâte à empreintes peut soutenir un foret stablement, un alésage de précision est réalisé. Plus spécifiquement, lorsque l'emplacement de l'os alvéolaire est manqué par ledit trou conçu pour être incliné, un alésage stable et rapide est effectué. Comme la profondeur de l'alésage est confirmé facilement et avec précision, la période de fonctionnement décroît considérablement.
PCT/KR2004/000147 2003-12-03 2004-01-28 Dispositif d'aide pour pate a empreintes d'implant et son procede d'utilisation WO2005053566A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20030087152 2003-12-03
KR10-2003-0087152 2003-12-03

Publications (1)

Publication Number Publication Date
WO2005053566A1 true WO2005053566A1 (fr) 2005-06-16

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KR (1) KR100497784B1 (fr)
CN (1) CN1901848A (fr)
WO (1) WO2005053566A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2191784A1 (fr) * 2008-12-01 2010-06-02 Straumann Holding AG Porte-foret pour fraise
US20130309628A1 (en) * 2011-02-03 2013-11-21 Sirona Dental Systems Gmbh Drilling jig for a dental implant and method for producing said drilling jig
US8708699B2 (en) 2008-12-15 2014-04-29 Straumann Holding Ag Drill guide
US10820964B2 (en) 2007-08-22 2020-11-03 Straumann Holding Ag Drill guide having a limit stop
CN114052956A (zh) * 2021-09-30 2022-02-18 中国人民解放军陆军军医大学第二附属医院 拔牙窝骨壁支持式口腔种植手术模板

Families Citing this family (8)

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KR100627426B1 (ko) 2004-11-29 2006-09-25 김종필 임플란트용 스텐트 보조구
KR101034370B1 (ko) 2007-10-31 2011-05-16 이태경 정밀유도 식립을 위한 임플란트용 스텐트 고정체
KR100954553B1 (ko) 2008-04-23 2010-04-23 이태경 임플란트 식립 가이드장치
CN101342096B (zh) * 2008-09-04 2010-06-02 同济大学 牙科种植定位定向导板的制作方法
CN102475580B (zh) * 2010-11-26 2014-01-22 郑伯堃 牙齿定位模板及其制造方法与组件
KR101519211B1 (ko) 2013-08-19 2015-05-11 연세대학교 원주산학협력단 수술가이드를 이용한 플랩리스 임플란트 시술용 드릴링 가이드 관
KR101864255B1 (ko) * 2017-11-13 2018-06-04 주식회사 덴탈스튜디오 임플란트 드릴링 가이드 장치
CN107981941B (zh) * 2017-11-29 2019-05-14 四川大学 用于口腔磨牙区即刻种植的窝洞预备组件及引导套管

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US5133660A (en) * 1989-08-07 1992-07-28 Fenick Thomas J Device for locating the optimum position for a tooth implant
US5350297A (en) * 1991-12-24 1994-09-27 Cohen Robert N Method and apparatus for recording the position of dental implants
US5613852A (en) * 1995-01-06 1997-03-25 Board Of Regents Univ Of Ne At Lincoln Dental implant drill guide system
US5989025A (en) * 1996-05-22 1999-11-23 Conley; Roy Drill guide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133660A (en) * 1989-08-07 1992-07-28 Fenick Thomas J Device for locating the optimum position for a tooth implant
US5350297A (en) * 1991-12-24 1994-09-27 Cohen Robert N Method and apparatus for recording the position of dental implants
US5613852A (en) * 1995-01-06 1997-03-25 Board Of Regents Univ Of Ne At Lincoln Dental implant drill guide system
US5989025A (en) * 1996-05-22 1999-11-23 Conley; Roy Drill guide

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10820964B2 (en) 2007-08-22 2020-11-03 Straumann Holding Ag Drill guide having a limit stop
EP2191784A1 (fr) * 2008-12-01 2010-06-02 Straumann Holding AG Porte-foret pour fraise
CN101744661A (zh) * 2008-12-01 2010-06-23 斯特劳曼控股公司 用于牙钻的钻头套筒
EP2368515A1 (fr) * 2008-12-01 2011-09-28 Straumann Holding AG Porte-foret pour foret dentaire
US8523566B2 (en) 2008-12-01 2013-09-03 Straumann Holding Ag Drill sleeve for a dental drill
US8708699B2 (en) 2008-12-15 2014-04-29 Straumann Holding Ag Drill guide
US20130309628A1 (en) * 2011-02-03 2013-11-21 Sirona Dental Systems Gmbh Drilling jig for a dental implant and method for producing said drilling jig
JP2014510565A (ja) * 2011-02-03 2014-05-01 シロナ・デンタル・システムズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 歯科インプラント用ドリルテンプレート及びこのドリルテンプレートの製造法
EP2670337B1 (fr) * 2011-02-03 2017-12-13 Sirona Dental Systems GmbH Gabarit de forage pour implant dentaire et procédé de production de ce gabarit de forage
US9949807B2 (en) * 2011-02-03 2018-04-24 Sirona Dental Systems Gmbh Drill guide for a dental implant and a method for fabricating a drill guide
CN114052956A (zh) * 2021-09-30 2022-02-18 中国人民解放军陆军军医大学第二附属医院 拔牙窝骨壁支持式口腔种植手术模板
CN114052956B (zh) * 2021-09-30 2024-06-04 中国人民解放军陆军军医大学第二附属医院 拔牙窝骨壁支持式口腔种植手术模板

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Publication number Publication date
KR100497784B1 (ko) 2005-06-28
CN1901848A (zh) 2007-01-24
KR20050053479A (ko) 2005-06-08

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