WO2008096294A1 - Implant dentaire - Google Patents

Implant dentaire Download PDF

Info

Publication number
WO2008096294A1
WO2008096294A1 PCT/IB2008/050339 IB2008050339W WO2008096294A1 WO 2008096294 A1 WO2008096294 A1 WO 2008096294A1 IB 2008050339 W IB2008050339 W IB 2008050339W WO 2008096294 A1 WO2008096294 A1 WO 2008096294A1
Authority
WO
WIPO (PCT)
Prior art keywords
threading
implant
crest
central portion
threads
Prior art date
Application number
PCT/IB2008/050339
Other languages
English (en)
Inventor
Espedito Brescia
Original Assignee
Apollonia & Fama Implant S.R.L.
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 Apollonia & Fama Implant S.R.L. filed Critical Apollonia & Fama Implant S.R.L.
Publication of WO2008096294A1 publication Critical patent/WO2008096294A1/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 generally refers to the field of dental implantology and more precisely it concerns a dental implant provided with a new type of thread.
  • dental implants are designed to be surgically inserted in place of the natural root of a lost tooth.
  • the implant becomes osteointegrated and has the function of anchoring a dental prosthesis, in the same way as a natural root.
  • the prosthesis can consist of a single artificial tooth or even of a complex structure with several artificial teeth.
  • the prosthesis is joined to the implant by means of a so- called abutment, fixed by means of a retention screw to the dental implant.
  • a typical structure thereof provides for an apical portion
  • the outer thread of the implant has an important role in the design of the dental implant, which does not follow international isometric norms but is the result of appropriate research and development.
  • several implant types have, on the coronal portion, a double-start threading (or, in some cases, even triple-start or multi- start threadings) , with lower pitch and depth than the single-start threading which instead covers the central and apical body of the implant.
  • the single-start threading of the central and apical implant ends on a cylindrical separation band separating the central portion from the coronal portion; the two thread crests of the coronal portion start on this same cylindrical band.
  • the main object of the present invention is to provide a dental implant which, when inserted in the implant site, prevents the formation of tensions both on the surrounding bone structure and on the same implant.
  • figure 1 represents a front view of an implant according to the invention
  • figure 2 represents a longitudinal section view of a portion of the implant of figure 1
  • - figure 3 shows an enlarged axonometric view of a detail of the implant of figure 1
  • figure 4 is a front view of the implant as in figure 1, in a schematical representation that shows the manufacture process of the implant, and highlights the substantial continuity of the core of the same.
  • a dental implant is indicated in its entirety at 10.
  • Such implant 10 comprises an endosteal body 11, composed of three different portions in series with each other, respectively an apical portion of tapered shape 12, a substantially cylindrical central portion 13 and a coronal portion 14, also having a tapered shape.
  • the endosteal body 11 axially has a partially threaded seat 15, in which a corresponding abutment can be housed (not shown in the figures), of known type and for the support of a prosthesis.
  • the single crest 18 of the first threading 16 continuously develops, substantially at the transition area between the central portion 13 and the coronal portion 14, into the two crests
  • Such a result can for example be attained by realizing, in a first step, the first threading 16 over the entire side surface of the implant.
  • the first threading is carried out via a first shaped tool A.
  • the groove 19 can be obtained by means of a second shaped tool B which enters on the first threading 16, progressively digging into the crest 18 while the implant rotates over a certain angle, in general equal to about 180°. Once the desired depth is reached, this will be maintained constant up to the end of the coronal portion 14, controlling the distance of the tool B from the core axis and also taking into account the increase of the core diameter.
  • a transition zone is observed between the first and second threading, generically indicated at the letter I in figure 1, shaped due to a non-symmetric entry of the above mentioned tool B with respect to the crest 18.
  • the beginning of the groove 19 is in fact visible, along with the start of one of the crests 17a of the second threading 17, while the other crest 17b is formed when, as its action continues, the tool B becomes more centred with respect to the crest 18.
  • the first threading 16 develops into the two crests of the second threading 17 while substantially maintaining the same overall dimensions, in particular in terms of pitch, width (the width of the single thread of the first threading 16 is substantially equal to the distance between the external flanks 17a' and 17b' of the two threads of the second, double-start threading 17) and slope of the threads (the slope of the external flanks 17a' and 17b' of the second threading 17 is substantially equal to the slope of the flanks of the single thread of the first threading 16) .
  • the height of the two crests of the second threading 17 is lower than the height of the crest of the first threading 16.
  • the root of the threading corresponding to the core of the implant, continuously progresses between the first threading 16 and the second threading 17.
  • a double-start threading is then obtained on the coronal portion 14 in practice as a continuation of the single-start threading formed in the apical 12 and central 13 portions, thus avoiding a discontinuity, such as a step, between the core of the central portion and the core of the coronal portion, all this assisting the reduction of the tensions generated around the endosteal body and on the surrounding bone when the implant is inserted in the implant site previously formed by the dental surgeon.
  • the second threading can adapt itself to the grooving formed in the implant site by the first threading.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Preparations (AREA)
  • Materials For Medical Uses (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention concerne un implant dentaire, comportant un corps endo-osseux généralement axial symétrique (11) ayant trois tronçons différents (12, 13, 14) reliés en série les uns aux autres, respectivement un tronçon apical (12), un tronçon central (13) et un tronçon coronal (14), un premier filetage commun à un seul filet (16) avec une crête (18) formé dans le tronçon central (13) et le tronçon apical (12), tandis qu'un second filetage à filet multiple (17) avec au moins deux filets présentant des crêtes respectives (17a, 17b) est formé dans ledit tronçon coronal (14), les racines des filetages définissant une âme (C) de l'implant. La crête unique (18) du premier filetage (16) se prolonge en lesdites deux crêtes (17a, 17b) du second filetage (17) de sort que ladite racine (C) de l'implant se prolonge sans interruption entre le premier filetage (16) et le second filetage (17).
PCT/IB2008/050339 2007-02-09 2008-01-31 Implant dentaire WO2008096294A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI2007A000035 2007-02-09
ITFI20070035 ITFI20070035A1 (it) 2007-02-09 2007-02-09 Impianto dentale

Publications (1)

Publication Number Publication Date
WO2008096294A1 true WO2008096294A1 (fr) 2008-08-14

Family

ID=38691923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/050339 WO2008096294A1 (fr) 2007-02-09 2008-01-31 Implant dentaire

Country Status (2)

Country Link
IT (1) ITFI20070035A1 (fr)
WO (1) WO2008096294A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008128757A2 (fr) * 2007-04-23 2008-10-30 Nobel Biocare Services Ag Implant dentaire
EP2221021A1 (fr) 2009-02-20 2010-08-25 GC Corporation Fixation d'implant dentaire
WO2011038915A1 (fr) * 2009-10-02 2011-04-07 Tilman Fritsch Implant dentaire
WO2012059908A1 (fr) * 2010-11-01 2012-05-10 Ilya Mushayev Implant dentaire multifilet
ES2418230A1 (es) * 2013-05-02 2013-08-12 Marcela Ridao Dalmau Implante dental endoóseo
US9452031B2 (en) 2007-04-23 2016-09-27 Nobel Biocare Services Ag Dental implant and dental component connection
US9681930B2 (en) 2014-12-15 2017-06-20 Jjgc Industria E Comercio De Materiais Dentarious S/A Implants for enhanced anchoring within bone
USD816841S1 (en) 2014-12-15 2018-05-01 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
CN111107808A (zh) * 2017-07-19 2020-05-05 牙科材料工贸有限公司 牙齿植入物
TWI715544B (zh) * 2014-11-27 2021-01-11 日商京瓷股份有限公司 牙科植牙用牙根及牙科植牙
US10898301B2 (en) 2016-05-05 2021-01-26 Jjgc Industria E Comercio De Materiais Dentarios S.A. Prosthetic assembly and method for producing the same
US20220226078A1 (en) * 2019-07-08 2022-07-21 Anthogyr Dental implant with improved threading

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000003657A1 (fr) * 1998-07-17 2000-01-27 Astrazeneca Ab Implant
WO2003014654A1 (fr) 2001-08-07 2003-02-20 Alliant Techsystems Inc. Disque a ressort destine a securiser une douille combustible a un culot
WO2003015654A1 (fr) * 2001-08-15 2003-02-27 Astra Tech Ab Implant, agencement comprenant un implant, et procede d'insertion dudit implant dans un tissu osseux
US20060172258A1 (en) 2005-02-01 2006-08-03 Niznick Gerald A Tapered endosseous dental implants with external multiple lead threads

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000003657A1 (fr) * 1998-07-17 2000-01-27 Astrazeneca Ab Implant
WO2003014654A1 (fr) 2001-08-07 2003-02-20 Alliant Techsystems Inc. Disque a ressort destine a securiser une douille combustible a un culot
WO2003015654A1 (fr) * 2001-08-15 2003-02-27 Astra Tech Ab Implant, agencement comprenant un implant, et procede d'insertion dudit implant dans un tissu osseux
US20060172258A1 (en) 2005-02-01 2006-08-03 Niznick Gerald A Tapered endosseous dental implants with external multiple lead threads

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008128757A3 (fr) * 2007-04-23 2009-04-02 Nobel Biocare Services Ag Implant dentaire
US9452031B2 (en) 2007-04-23 2016-09-27 Nobel Biocare Services Ag Dental implant and dental component connection
WO2008128757A2 (fr) * 2007-04-23 2008-10-30 Nobel Biocare Services Ag Implant dentaire
EP2221021A1 (fr) 2009-02-20 2010-08-25 GC Corporation Fixation d'implant dentaire
WO2011038915A1 (fr) * 2009-10-02 2011-04-07 Tilman Fritsch Implant dentaire
WO2012059908A1 (fr) * 2010-11-01 2012-05-10 Ilya Mushayev Implant dentaire multifilet
ES2418230A1 (es) * 2013-05-02 2013-08-12 Marcela Ridao Dalmau Implante dental endoóseo
WO2014177742A1 (fr) * 2013-05-02 2014-11-06 Marcela Ridao Dalmau Implant dentaire endo-osseux
TWI715544B (zh) * 2014-11-27 2021-01-11 日商京瓷股份有限公司 牙科植牙用牙根及牙科植牙
US9681930B2 (en) 2014-12-15 2017-06-20 Jjgc Industria E Comercio De Materiais Dentarious S/A Implants for enhanced anchoring within bone
USD837378S1 (en) 2014-12-15 2019-01-01 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
USD838369S1 (en) 2014-12-15 2019-01-15 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
USD845485S1 (en) 2014-12-15 2019-04-09 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
US10398533B2 (en) 2014-12-15 2019-09-03 Jjgc Industria E Comercio De Materiais Dentarios S/A Implants for enhanced anchoring within bone
USD816841S1 (en) 2014-12-15 2018-05-01 Jjgc Industria E Comercio De Materiais Dentarios S/A Bone implant
US10898301B2 (en) 2016-05-05 2021-01-26 Jjgc Industria E Comercio De Materiais Dentarios S.A. Prosthetic assembly and method for producing the same
CN111107808A (zh) * 2017-07-19 2020-05-05 牙科材料工贸有限公司 牙齿植入物
CN111107808B (zh) * 2017-07-19 2022-07-19 牙科材料工贸有限公司 牙齿植入物
US20220226078A1 (en) * 2019-07-08 2022-07-21 Anthogyr Dental implant with improved threading

Also Published As

Publication number Publication date
ITFI20070035A1 (it) 2008-08-10

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