WO2009054650A1 - Dispositif de fixation d'implant dentaire - Google Patents

Dispositif de fixation d'implant dentaire Download PDF

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Publication number
WO2009054650A1
WO2009054650A1 PCT/KR2008/006134 KR2008006134W WO2009054650A1 WO 2009054650 A1 WO2009054650 A1 WO 2009054650A1 KR 2008006134 W KR2008006134 W KR 2008006134W WO 2009054650 A1 WO2009054650 A1 WO 2009054650A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw threads
fixture
bone
screw thread
dental fixture
Prior art date
Application number
PCT/KR2008/006134
Other languages
English (en)
Inventor
Sang-Oh Park
Original Assignee
Osstemimplant Co., Ltd.
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
Priority claimed from KR1020070106208A external-priority patent/KR100857425B1/ko
Priority claimed from KR1020070113712A external-priority patent/KR100860265B1/ko
Application filed by Osstemimplant Co., Ltd. filed Critical Osstemimplant Co., Ltd.
Publication of WO2009054650A1 publication Critical patent/WO2009054650A1/fr

Links

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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • 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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • A61C8/0025—Self-screwing with multiple threads

Definitions

  • the present invention relates to a dental fixture and, more specifically to a dental fixture that prevents the bone resorption and facilitates the osseointegration by removing the pressure given to a cortical bone.
  • the screw type fixture used in dentistry is inserted into a bone tissue to form an artificial dental root.
  • a prosthesis that is an artificial tooth is put into an abutment which is coupled thereon.
  • the fixture is made of titanium to improve the integration with the neighboring bone tissue. Screw threads are formed from the upper end to the lower end of the outer circumference of a body portion of the fixture.
  • the fixture is also used as a fixing member for fixing the prosthesis on the bone not only in dentistry but also in orthopedics.
  • the bone tissue to which the fixture is inserted and implanted is divided into a cortical bone and a cancellous bone.
  • the cortical bone is a relatively thin film that is relatively hard and generally encloses the cancellous bone.
  • the cancellous bone is a relatively soft bone tissue on the inner side of the cortical bone.
  • the bone resorption means the phenomenon that the bone tissue around which the fixture is implanted is reduced in amount and is deteriorated.
  • the bone resorption attenuates the fixing force of the fixture so as to deteriorate the stability of the prosthesis and cause the damage of the prosthesis.
  • the bone resorption may cause the deposition of tartar that generates an inflammation on the gum tissue that encloses the fixture that is used in dentistry, or make the neighboring gum tissue be curved downwardly along the exposed end of the fixture. Therefore, the bone resorption not only deteriorates the stability of the prosthesis, but also spoils the beauty thereof.
  • the bone resorption is facilitated by both of the excessive stimulus and the low stimulus that are generated at the time of the concentration of stress due to the uneven distribution of the stress that acts on the bone tissue adjacent to the fixture.
  • a dental fixture for being inserted into a bone tissue consisting of a cortical bone and a cancellous bone to form an artificial dental root by being rotated based on a central axis thereof, comprising: a second part being implanted to the cancellous bone and having second screw threads formed on the outer circumference thereof; and a first part being implanted to the cortical bone and having continuous screw threads and independent screw threads formed on the outer circumference thereof, wherein the heights between the vertexes and the roots of the continuous screw threads and the independent screw threads are different from each other.
  • a dental fixture for being inserted into a bone tissue consisting of a cortical bone and a cancellous bone to form an artificial dental root by being rotated based on a central axis thereof, comprising: a first part being implanted to the cortical bone and having first screw threads formed on the outer circumference thereof; and a second part being implanted to the cancellous bone and having second screw threads formed on the outer circumference thereof, wherein the vertical distance between the vertex of the first screw thread and the central axis is smaller than the vertical distance between the vertex of the second screw thread and the central axis.
  • the present invention is provided to resolve the aforesaid problems and is able to be applied industrially by providing a dental fixture which is inserted while minimizing the pressure given to the cortical bone to minimize the bone resorption and facilitate the osseointegration.
  • FIG. 1 is a schematic diagram of a fixture in accordance with the first embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a fixture in accordance with the second embodiment of the present invention.
  • FIG. 3 is a graph showing the results of the comparison experiment of the fixtures of the first embodiment and the second embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing a modified embodiment of the third embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing another modified embodiment of the third embodiment of the present invention.
  • FIG. 6 is a schematic diagram showing another modified embodiment of the third embodiment of the present invention.
  • FIG. 7 is a schematic diagram of the fixture in accordance with the third embodiment of the present invention.
  • FIG. 8 is a graph showing the results of the comparison experiment of the fixtures of the first embodiment and the third embodiment of the present invention. Best Mode for Carrying Out the Invention
  • FIG. 1 is a schematic diagram and an expansion of a fixture in accordance with the first embodiment of the present invention.
  • the fixture in accordance with the present embodiment has screw threads that are divided into a first part 110 and a second part 120 along the direction of a vertical axis to solve the problem of the bone resorption. It is desirable that the first part 110 is disposed on the cortical bone and the second part 120 is disposed on the cancellous bone when the installation of the fixture 100 is completed.
  • the distance in an axial direction Ia between the vertexes of the screw thread peaks of the first part 110 is smaller than the distance in an axial direction Ib between vertexes of the adjacent peaks of the second part. That is, it is desirable to make the distance in an axial direction between the vertexes of the adjacent peaks of the first part 110 narrow by adding independent screw threads between the screw threads that are formed to be continuous with the second part 120 in the first part 110.
  • the first part 120 which has dense screw threads because the independent screw threads are added is inserted into the hard cortical bone, prevents the concentration of the stress and transmits the load evenly to the adjacent bone tissue to prevent the bone resorption.
  • the second part 120 wherein the distance between the screw threads is formed to be relatively broad is inserted into and is stably fixed to the relatively soft cancellous bone (not-illustrated).
  • an implant hole of a proper size is formed on the bone tissue by using a drill firstly. Then, threads are formed on the inner circumference of the implant hole by rotating and inserting the fixture into the implant hole. It is desirable to make the outer diameter Dd of the implant hole correspond to the middle position between the vertex and the root in consideration of the convenience of the insertion (Please, refer to line Id of Fig. 1). Therefore, the empty space that is formed between the screw thread and the bone tissue after the fixture is inserted is filled up with the bone tissue that grows as time passes, and the fixture and the bone tissue are integrated with each other.
  • the outer diameter of the implant hole corresponds to the middle position between the vertex and the root bottom of the screw thread and as illustrated in Fig. 1, because the separated distance e between the root bottom and the outer diameter of the implant hole is large, a large amount of empty space is formed. Therefore, there is a problem that it takes a long period of time for the bone tissue to grow up to the root and thus the osseointegration is delayed.
  • FIG. 2 is a schematic diagram of the dental fixture in accordance with the second embodiment of the present invention.
  • the fixture 310 of the present embodiment consists of a first part 320 and a second part 330.
  • the first part means the part, most of which is implanted to the cortical bone when the fixture 310 is inserted, and constitutes the upper part of the fixture 310.
  • Continuous screw threads 321 and independent screw threads 322 are formed on the outer circumference of the first part 320.
  • the continuous screw threads 321 have a lead distance of L31, which is the depth of being implanted when the screw threads are rotated once based on the central axis, and are preferably formed to be continuous with the second screw threads 331 formed on the outer circumference of the second part 330. Also, the vertical distance between the vertex and the root of the continuous screw thread 321 is h31.
  • the outer diameter of the vertex of the continuous screw thread 321 is D31, and when the outer diameter D31 is 4 mm, the height h 31 is preferably 0.02 - 0.5 mm, and more preferably 0.03 - 0.3 mm.
  • the independent screw threads 322 are arranged between the continuous screw threads 321. That is, the continuous screw threads 321 and the independent screw threads 322 are arranged in turn.
  • the outer diameter D 32 of the vertex of the independent screw thread 322 is smaller than the outer diameter D 31 of the continuous screw thread 321 (D 31 > D 32 ). That is, the height h 32 of the vertex of the independent screw thread 322 is smaller than the height h 3i of the continuous screw thread 321.
  • the difference of the height is preferably 0.02 - 0.4 mm, and more preferably 0.03 -
  • the distance in an axial direction I 31 between the vertexes of the adjacent continuous screw thread 321 and independent screw thread 322 is 0.03 ⁇ 0.6 mm.
  • the distance in an axial direction is less than 0.03 mm, the insertion torque is increased extremely and excessive pressure is given to the cortical bone, and when it is larger than 0.6 mm, the contact area of the fixture 310 that comes into contact with the cortical bone is small and thus the bonding force is deteriorated.
  • the second part 330 is implanted to the cancellous bone and has screw threads formed on the outer circumference thereof.
  • Second screw threads 331 whose vertical distance between the vertexes and the roots thereof has a height h 33 that is greater than the aforesaid height h 32 are installed on the second part 330. It is desirable that the outer diameter D 31 of the second screw thread 331 is identical to the outer diameter of the continuous screw thread 321. It is because the torque increases rapidly when the second part 330 is implanted if the outer diameter of the continuous screw thread 321 is greater than that of the second screw thread 331.
  • Such a dental fixture in accordance with the second embodiment is implanted to the bone tissue of a human body as follows.
  • an implant hole having a drill line of Fig. 2 as an outer diameter Dd 31 is formed on the alveolar bone where the dental fixture will be implanted.
  • the dental fixture 310 is inserted into the implant hole of the bone tissue by being rotated based on the central axis thereof with a predetermined tool.
  • the second part 330 having larger screw threads of the dental fixture 310 is inserted into the implant hole firstly to form threads having a predetermined size on the inner circumference of the implant hole, and then the first part 320 is inserted consecutively into the implant hole of the bone tissue, producing new small threads additionally.
  • the tissues of the cancellous bone and the cortical bone grow and osseointegrate with the implanted fixture.
  • Fig. 3 is a graph which compares the insertion torque of the fixture in accordance with the first embodiment and the fixture in accordance with the second embodiment.
  • the target for implant includes an upper part corresponding to the cortical bone
  • the fixture of the first type 310 has a shape identical to that of the second embodiment
  • the fixture of the second type 100 has a shape identical to that of the first embodiment.
  • Fig. 2 is as follows.
  • the insertion torque began to increase gradually at the position of 8.5 mm where the implanting of the first part 320 began after the second part 330 was inserted in the fixture 310 in accordance with the second embodiment.
  • the rotary torque increased only gradually thereafter. That is, the insertion torque increased slowly from 26 Ncm to 38 Ncm in the second embodiment.
  • the insertion torque did not increase abruptly even while the first part was being inserted after the second part was inserted differently from the first embodiment, and the pressure given to the cortical bone was obviously small. Also, it can be inserted into the bone tissue more smoothly to avoid damaging the bone tissue, especially the cortical bone and facilitate the osseoin- tegration.
  • the second embodiment described above has the following effects other than the aforesaid effects.
  • the outer diameter of the implant hole is formed to correspond to the ap- proximate middle line between the vertex and the root of the screw thread of the first part as mentioned above.
  • the outer diameter Dd of the implant hole is formed to correspond to the approximate middle position between the root and the vertex of the screw thread of the first part. That is, the distance between the root and the implanting line Id becomes e. Therefore, when the fixture 100 is inserted into the bone tissue, the bone tissue is not filled up from the root of the second part 120 to the implanting line Id, and a relatively large amount of empty space is formed. If there is a large amount of empty space, there is a problem that it takes a long period of time for the bone tissue to grow.
  • the outer diameter of the first part 320 is smaller than that of the second part 330.
  • the implant hole having an outer diameter Dd 31 that corresponds to the middle position between the vertex and the root of the small screw thread of the first part 320 is formed on the bone tissue. Accordingly, the distance f between the root of the second part and the diameter line ld 3 i of the implant hole becomes shorter than that of the first embodiment (f ⁇ e).
  • the outer diameter line ld 3 i of the implant hole is disposed to be adjacent to the root of the screw thread in the second embodiment, the part that is not filled up with the bone tissue between the screw threads and the bone is minimized in the second part 230, 330. Accordingly, there are advantages that the bone tissue not only osseointegrates with the fixture 210, 310 quickly but also is bonded with the fixture 210, 310 surely. That is, the fixture 210, 310 has a sufficient contact area with the bone tissue and thus is able to improve the bonding force with respect to the bone tissue.
  • the fixture 310 in accordance with the second embodiment can be modified as follows to achieve the objective of the present invention.
  • the basic constitution is identical to that of the second embodiment, explanation thereof will be omitted.
  • the outer diameter of the continuous screw thread 321 is identical to that of the second screw thread 331 in the embodiment mentioned above, but it is possible that the outer diameter of the continuous screw 321 is different from that of the second screw thread 331.
  • the continuous screw thread 321 is a two-thread screw thread. That is, it is also possible to form the continuous screw 321 to be a two-thread screw and reduce the pressure to the cortical bone according to the circumstances in the case of a patient whose cortical bone is hard.
  • the outer diameter D 32 of the vertex of the independent screw thread 322 is smaller than the outer diameter D 31 of the continuous screw thread 321 (D 31 ' > D 32 ').
  • the height of the independent screw can be increased or decreased along the vertical direction.
  • the independent screw threads 422 have heights h2 that are reduced as they go towards the lower side thereof. Therefore, because the heights of the independent screw threads 422 that are adjacent to the second part 430 are relatively low, the excessive increase of the insertion torque can be more prevented at an early stage in which the first part 420 is inserted. That is, because the heights of the independent screw threads 422 increase gradually as they get distant from the second part 430, the increase amount of the insertion torque becomes more gradual. This is suitable for a patient who has a high bone mineral density especially. That is, it is desirable to increase the heights of the independent screw threads 422 slowly as they go toward the upper side thereof for a patient who has a high bone mineral density and thus has a hard cortical bone.
  • Fig. 7 is a schematic diagram and an expansion of a dental fixture in accordance with the third embodiment of the present invention.
  • the dental fixture 210 includes the first part 220 and the second part 230 that are distinguished along the longitudinal direction thereof.
  • the fixture 210 When the fixture 210 is implanted, most of the first part 220 formed on the upper part thereof is implanted to the cortical bone, and the first part has plural first screw threads 221 having vertexes 221a and roots 221b formed thereon.
  • the first part has plural first screw threads 221 having vertexes 221a and roots 221b formed thereon.
  • a part of the lower end of the first part 220 is implanted to the cancellous bone.
  • the lead distance which is the implanted depth when the first part is rotated once based on the central axis C is "L 2 i". Also, the vertical distance between anyone vertex 221a of the first screw thread 221 and the root 221b adjacent to the same vertex 221a is a first height h 21 .
  • the distance between the central axis C and the vertex 221a of the first screw thread is R 2 i, and the outer diameter of the first screw thread 221 is D 2 i. It is desirable that the vertexes 221a of the first screw thread 221 are disposed in the same distance from the central axis C, and the straight line connecting each vertex 221a is parallel to the central axis C.
  • the distance in an axial direction I 21 between the vertexes 221a of the adjacent first screw threads 221 of the first part 220 is preferably 0.03 - 0.6 mm, and more preferably 0.3 mm.
  • the distance between the screw threads of the first screw threads 221 becomes broader and thus there is a risk that the vertex thereof 221a might give too much stress to the cortical bone. That is, the density of the first screw threads 221 should be maintained to be proper to prevent excessive stress from being focused on anyone part of the cortical bone and make the stress be distributed on the entire portion of the cortical bone properly.
  • the second part 230 is formed on the lower part of the fixture 210 to be implanted to the cancellous bone, and have the second screw threads 231 formed on the outer circumference thereof.
  • the second part is implanted to the cancellous bone.
  • the implanted depth of the second part 230 when the fixture 210 is rotated once based on the central axis C can be considered to be a lead distance, "L 22 " Also, the vertical distance between anyone vertex 231a of the second screw thread 231 and the root 231b adjacent to the same vertex is a second height h 22 .
  • the radius R 2! between the vertex of the first screw thread 221 of the first part and the central axis C is smaller than the radius R 22 between the vertex of the second screw thread 231 of the second part 230 and the central axis C (R 21 ⁇ R 22 ).
  • radius R 21 of the first part 220 be smaller than that of the second part 230 is to prevent the abrupt increase of the insertion torque due to the increase of the number of screw threads when the first part 220 is inserted after the second part 230 is inserted.
  • the radius R 21 of the first part 220 is smaller than the radius R 22 of the second part 30 by 0.02 0.4 mm, and more preferably by 0.03 - 0.2 mm. If the difference of the two radiuses is less than 0.02 mm, there is little difference between the first part 220 and the second part 230, and thus there is a risk that the reduction of the insertion torque that is sought to be achieved will be hardly obtained.
  • the first height h 21 which is the vertical distance between the vertex 221a of the first screw thread 221 of the first part 220 and the root 221b adjacent to the same vertex 221a is smaller than the second height h 22 that is the vertical distance between the vertex 231a of the second screw thread 231 of the second part 230 and the root 231b adjacent to the same vertex 231a.
  • Such a dental fixture 210 in accordance with the present embodiment is implanted to the bone tissue of the human body as follows.
  • the implant hole having the drill line of Fig. 7 as an outer diameter Dd 2I is formed on the alveolar bone where the fixture will be implanted.
  • the dental fixture 210 is rotated based on the central axis C and is inserted into the implant hole of the bone tissue with a predetermined tool.
  • the second part 230 having larger screw threads is inserted into the implant hole and forms a predetermined size of threads on the inner circumference of the implant hole.
  • the first part 220 is inserted consecutively and is inserted into the implant hole while producing new small threads additionally on the threads that are formed by the second screw threads 231.
  • the dental fixture 10 in accordance with the present embodiment there is no abrupt increase of the insertion torque in the process in which the first part 20 having a different screw shape is inserted after the second part 30 is inserted and thus the pressure that is given to the cortical bone is small. That is, the outer diameter of the first screw thread 21 of the first part 20 is smaller than the outer diameter of the second screw thread 31 of the second part 30, and thus the pressure given to the bone gets minimized and the effects of facilitating the osseointegration are obtained.
  • Fig. 8 is a graph that compares the insertion torque of the fixtures in accordance with the first embodiment and the second embodiment of the present invention.
  • a target for implant to which a fixture will be implanted (not-illustrated) and a fixture 100, 210 which will be implanted to the target for implant were prepared.
  • the first type is a fixture 210 that has the same shape as the fixture of the third embodiment illustrated in Fig. 6, and the second type is a fixture 100 that has the same shape as the fixture illustrated in Fig. 1.
  • the target for implant includes an upper part corresponding to the cortical bone (thickness: 3 mm, bone mineral density: 50 g/cm 2 ) and a lower part disposed on the lower side of the upper part (thickness: 27 mm, bone mineral density: 30 g/cm 2 ), and is constituted to have an environment similar to that of the actual bone tissue of a human body.
  • the rotary torque rapidly increased at the position of 8.5mm where the insertion of the first part 110 began after the second part 120 was inserted. That is, the insertion torque increased from 26 Ncm to 40 Ncm rapidly.
  • the insertion torque increased gradually at the position of 8.5 mm where the insertion of the first part 20 began after the second apart 30 were inserted in the fixture 10 in accordance with the third embodiment, and the rotary torque increased slowly thereafter without any abrupt increase. That is, the insertion torque increased slowly from 32.5 Ncm to 35 Ncm in the third embodiment.
  • the present invention is able to be applied industrially by providing a dental fixture which is inserted while minimizing the pressure given to the cortical bone to minimize the bone resorption and facilitate the osseointegration.

Abstract

La présente invention concerne un dispositif de fixation d'implant dentaire, permettant une implantation plus stable, destinée à être introduite dans un tissu osseux ayant un os cortical ou un os spongieux pour former une racine dentaire artificielle par une rotation autour d'un axe central de celui-ci, comportant : une second partie implantée dans l'os spongieux et comprenant des seconds filets de vis formés sur sa circonférence extérieure ; et une première partie implantée dans l'os cortical et comprenant des filets continus et des filets indépendants formés sur sa circonférence extérieure, les hauteurs entre les sommets et les racines des filets continus et des filets indépendants étant différentes les unes des autres.
PCT/KR2008/006134 2007-10-22 2008-10-17 Dispositif de fixation d'implant dentaire WO2009054650A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2007-0106208 2007-10-22
KR1020070106208A KR100857425B1 (ko) 2007-10-22 2007-10-22 치과용 픽스츄어
KR10-2007-0113712 2007-11-08
KR1020070113712A KR100860265B1 (ko) 2007-11-08 2007-11-08 치과용 픽스쳐

Publications (1)

Publication Number Publication Date
WO2009054650A1 true WO2009054650A1 (fr) 2009-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/006134 WO2009054650A1 (fr) 2007-10-22 2008-10-17 Dispositif de fixation d'implant dentaire

Country Status (1)

Country Link
WO (1) WO2009054650A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2510898A1 (fr) * 2011-04-14 2012-10-17 Astra Tech AB Dispositif de fixation
US20120264083A1 (en) * 2011-04-14 2012-10-18 Anders Halldin Fixture and a fixture set and a method
US8888487B2 (en) 2011-04-14 2014-11-18 Dentsply International Inc. Set of fixtures, an implantation system and a method of selecting a fixture from a set of fixtures
AT14617U1 (de) * 2012-12-10 2016-02-15 Ribaxx Ag Dentalimplantat mit einem Mikro- und einem Makrogewinde
CN106859790A (zh) * 2015-12-11 2017-06-20 刘恩亨 将人工牙根植入默认位置的规划导引方法与钻孔导引装置
US9782239B2 (en) 2011-04-14 2017-10-10 Dentsply International Inc Fixture, a thread maker and a fixture set
WO2021001848A1 (fr) * 2019-06-30 2021-01-07 Diwan Jayendra Bhupendrabhai Appareil pour implant dentaire d'ancrage basal ayant un profil de filetage de fils corticaux et de fils spongieux
JP2021083748A (ja) * 2019-11-28 2021-06-03 株式会社松風 スレッド溝深さが漸減するインプラントフィクスチャ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547564B1 (en) * 1998-07-17 2003-04-15 Astra Aktiebolag Bone implant having circumferentially oriented roughness
US20040006346A1 (en) * 2001-08-15 2004-01-08 Anders Holmen Implant, arrangement comprising an implant, and method for inserting said implant in bone tissue
KR200386050Y1 (ko) * 2005-01-06 2005-06-07 김정찬 치과용 임플란트의 픽스츄어
US7210933B2 (en) * 2001-02-02 2007-05-01 Friadent Gmbh Implant system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547564B1 (en) * 1998-07-17 2003-04-15 Astra Aktiebolag Bone implant having circumferentially oriented roughness
US7210933B2 (en) * 2001-02-02 2007-05-01 Friadent Gmbh Implant system
US20040006346A1 (en) * 2001-08-15 2004-01-08 Anders Holmen Implant, arrangement comprising an implant, and method for inserting said implant in bone tissue
KR200386050Y1 (ko) * 2005-01-06 2005-06-07 김정찬 치과용 임플란트의 픽스츄어

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2012241848B2 (en) * 2011-04-14 2016-01-07 Dentsply Ih Ab A fixture
EP2510898A1 (fr) * 2011-04-14 2012-10-17 Astra Tech AB Dispositif de fixation
US20120264083A1 (en) * 2011-04-14 2012-10-18 Anders Halldin Fixture and a fixture set and a method
CN103476356A (zh) * 2011-04-14 2013-12-25 登士伯Ih有限公司 固定器
US8888487B2 (en) 2011-04-14 2014-11-18 Dentsply International Inc. Set of fixtures, an implantation system and a method of selecting a fixture from a set of fixtures
US9226804B2 (en) 2011-04-14 2016-01-05 Dentsply International Inc. Fixture and a fixture set and a method
WO2012140166A1 (fr) * 2011-04-14 2012-10-18 Astra Tech Ab Fixation
US11426261B2 (en) 2011-04-14 2022-08-30 Dentsply Sirona Inc. Fixture
US9782239B2 (en) 2011-04-14 2017-10-10 Dentsply International Inc Fixture, a thread maker and a fixture set
AT14617U1 (de) * 2012-12-10 2016-02-15 Ribaxx Ag Dentalimplantat mit einem Mikro- und einem Makrogewinde
CN106859790A (zh) * 2015-12-11 2017-06-20 刘恩亨 将人工牙根植入默认位置的规划导引方法与钻孔导引装置
WO2021001848A1 (fr) * 2019-06-30 2021-01-07 Diwan Jayendra Bhupendrabhai Appareil pour implant dentaire d'ancrage basal ayant un profil de filetage de fils corticaux et de fils spongieux
JP2021083748A (ja) * 2019-11-28 2021-06-03 株式会社松風 スレッド溝深さが漸減するインプラントフィクスチャ
JP7305283B2 (ja) 2019-11-28 2023-07-10 株式会社松風 スレッド溝深さが漸減するインプラントフィクスチャ

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