US20050240274A1 - Arrangement for increasing the stress resistance of implants, and one such implant - Google Patents

Arrangement for increasing the stress resistance of implants, and one such implant Download PDF

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Publication number
US20050240274A1
US20050240274A1 US10/521,149 US52114905A US2005240274A1 US 20050240274 A1 US20050240274 A1 US 20050240274A1 US 52114905 A US52114905 A US 52114905A US 2005240274 A1 US2005240274 A1 US 2005240274A1
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US
United States
Prior art keywords
implant
sinus
parts
mucous membrane
growth
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US10/521,149
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English (en)
Inventor
Jan Hall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nobel Biocare Services AG
Original Assignee
Nobel Biocare AB
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 Nobel Biocare AB filed Critical Nobel Biocare AB
Assigned to NOBEL BIOCARE AB (PUBL.) reassignment NOBEL BIOCARE AB (PUBL.) ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HALL, JAN
Publication of US20050240274A1 publication Critical patent/US20050240274A1/en
Priority to US12/236,903 priority Critical patent/US8771361B2/en
Assigned to NOBEL BIOCARE SERVICES AG reassignment NOBEL BIOCARE SERVICES AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NOBEL BIOCARE AB
Priority to US14/288,078 priority patent/US9855116B2/en
Assigned to NOBEL BIOCARE SERVICES AG reassignment NOBEL BIOCARE SERVICES AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NOBEL BIOCARE AB (PUBL.)
Abandoned legal-status Critical Current

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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
    • A61C8/0012—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 material or composition, e.g. ceramics, surface layer, metal alloy
    • A61C8/0013—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 material or composition, e.g. ceramics, surface layer, metal alloy with a surface layer, coating
    • A61C8/0015—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 material or composition, e.g. ceramics, surface layer, metal alloy with a surface layer, coating being a conversion layer, e.g. oxide layer
    • 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
    • A61C8/0012—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 material or composition, e.g. ceramics, surface layer, metal alloy
    • 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
    • A61C8/0012—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 material or composition, e.g. ceramics, surface layer, metal alloy
    • A61C8/0013—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 material or composition, e.g. ceramics, surface layer, metal alloy with a surface layer, coating
    • 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
    • A61C8/0089—Implanting tools or instruments
    • A61C8/0092—Implanting tools or instruments for sinus lifting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/22—Polypeptides or derivatives thereof, e.g. degradation products
    • A61L27/227—Other specific proteins or polypeptides not covered by A61L27/222, A61L27/225 or A61L27/24

Definitions

  • the present invention relates to an arrangement for increasing the stress resistance of implants arranged in an upper jaw bone.
  • the invention moreover relates to an implant for this purpose and made of titanium or of another biocompatible material, for example ceramic.
  • the present invention starts out from this understanding and proposes an arrangement and implants permitting this increase in length, which means that patients who for various reasons, for example poor upper jaw status, have hitherto been able to be provided with implants only of short lengths, for example implant lengths of 7-8 mm, can now be provided with implants having greater lengths, for example 10 mm or more.
  • implants having greater lengths, for example 10 mm or more.
  • the invention solves these problems, among others, and allows the implant length to be increased in relation to what was previously possible, and more independently of, for example, the upper jaw status.
  • the feature which can principally be regarded as characterizing an arrangement according to the invention is, inter alia, that the implant has a length which requires that the implant must be given access at parts to the sinus cavity and that the implant, at said parts, is arranged with a convex or rounded front surface which, upon access, lifts the sinus mucous membrane, without piercing the latter, and thus forms a closed space between the parts and the underside of the mucous membrane.
  • the implant is provided, at least at said parts, with growth-stimulating substances which interact with cell-containing body fluid which has penetrated into the space, so that new bone is formed around said parts of the implant and thereby effects said resistance.
  • the convex or rounded front surface and at least one contiguous outer surface of the implant situated in the sinus are coated with layers of growth-stimulating substances.
  • Said contiguous outer surface, and possibly at least parts of the front surface, are arranged with a rough outer layer or porous outer oxide layer(s) functioning as a reservoir for said growth-stimulating substance or substances.
  • the roughness on the front surface is in this case designed not to cause penetration through the mucous membrane.
  • the implant can be made of titanium and can be coated with growth-stimulating substance or substances, here called GSS, along most of its length.
  • the growth-stimulating substance or substances can be matrix molecules, growth factors and differentiation factors and/or peptides with growth-stimulating properties. Other types of GSS can also be used.
  • the implant can also be arranged in an upper jaw bone with reduced height, and the anchoring of the implant in the initial stage can in this case be complemented by mechanical anchoring elements, for example stiff membranes, which can be connected to the outer surface of the upper jaw bone. After incorporation, the anchoring is dependent on the degree of insertion of the implant in the sinus. The greater the degree of insertion, the greater the enclosed space, which means that the interacting body fluids and substances effect a greater formation of new bone around the implant.
  • the arrangement also comprises a member which can be introduced into a jaw bone hole extending from the outside of the jaw bone and opening into the sinus on the underside of the sinus mucous membrane.
  • the member In the inserted position below said underside, the member is designed to effect a rotation movement as a function of a turning action, preferably of a manual type.
  • the member has one or more front parts which are designed to be able to pass in between the boundary wall of the sinus and the underside of the mucous membrane and, upon said rotation movement or rotation movements, to free parts of the mucous membrane from the boundary wall of the sinus.
  • An implant according to the invention is characterized principally in that it is arranged with a convex or rounded front surface which can cooperate with the mucous membrane in the sinus, via the underside of the mucous membrane, to form an enclosed space between the implant and the underside of the mucous membrane. At least the parts which penetrate or have penetrated into the sinus are coated with growth-stimulating substance or substances arranged to interact with cell-containing body fluid in said enclosed space in order to form new bone around the front surface and the parts.
  • the parts of the implant on the outside in the sinus are designed with a roughened outer surface or porous outer oxide layer arranged to store said substance or substances.
  • growth-stimulating substance or substances can be used effectively, and examples of GSS which may be mentioned are matrix molecules, growth factors and differentiation factors and/or peptides with growth-stimulating properties.
  • GSS growth-stimulating substance or substances
  • matrix molecules growth factors and differentiation factors and/or peptides with growth-stimulating properties.
  • the mucous membrane must be protected against mechanical action, and this is achieved effectively by the proposed lifting function, in possible combination with the release function between the mucous membrane and the wall of the sinus.
  • FIG. 1 shows, in vertical section, an implant which is fitted in a hole in the upper jaw bone and whose front parts have passed into the sinus and cooperate with the mucous membrane, at the underside thereof, so that a closed space for production of new bone is created
  • FIG. 2 shows, in a vertical view, and enlarged in relation to FIG. 1, the configuration of the front surface of the implant and parts penetrating into the sinus,
  • FIG. 3 shows, in vertical section, and enlarged in relation to FIG. 2, parts of the front surface with applied growth-stimulating substance or substances,
  • FIG. 4 shows, in vertical section, other parts of the implant's side surfaces which are coated with layers of growth-stimulating substance or substances, which outer sides can comprise one or more threads,
  • FIG. 5 shows, in a vertical view, a second embodiment of the front surface of the implant
  • FIG. 6 shows, in vertical view, a third embodiment of the front surface of the implant.
  • FIG. 7 shows, in vertical section, members or instruments which, before lifting of the mucous membrane of the sinus, are intended to free the latter from the inner surface of the sinus.
  • an upper jaw bone is represented by 1 .
  • a hole 2 with an internal thread has been formed in the jaw bone.
  • An implant 3 has been fitted in the hole in the jaw bone, its front parts 4 a passing into a sinus 5 .
  • the insertion in this case is such that the front parts 4 have lifted the mucous membrane 6 of the sinus by means of the implant's front parts 4 cooperating with the mucous membrane at the underside 6 a thereof. It is important here that the lifting is done in such a way that the mucous membrane 6 is not pierced by the implant or is not damaged in a way which would involve a risk of its later becoming pierced.
  • the lifting of the mucous membrane 6 results in an enclosed space 7 being formed between the underside 6 a of the mucous membrane and the outer surface 4 a of the outer parts.
  • Body fluid 8 passes into the enclosed space from the body tissue in accordance with arrows 9 and 10 .
  • At least said front parts 4 of the implant are provided, on said outer surface 4 a, with growth-stimulating substance or substances which interact with said body fluid 8 .
  • the substance or substances are initially applied in a specific amount and concentration on said surface 4 a, and said interaction from said layer is represented in the figure by arrows 10 .
  • FIG. 1 the formation of new bone has been symbolized by 11 . Two stages have been indicated in the figure.
  • the implant can be of the self-tapping type or of the type fitted in a previously formed thread in the jaw bone hole 2 .
  • parts of an outer thread on the implant 3 have been indicated by 3 a.
  • Other parts of the implant can also be provided with amounts or concentrations of growth-stimulating substance or substances lying on the outside.
  • the implant has a length L in accordance with the above.
  • the height or length L′ of the dentine can vary as a function of the patient, jaw bone status, etc.
  • the degree of insertion of the implant i.e. L-L′, is dependent inter alia on the length or height L′. If the length or height is small, it may be important to increase stability by means of the new bone formation in the closed space 7 , which in such a case entails a greater degree of insertion of the front parts 4 a of the implant.
  • the implant can be anchored to the jaw bone 1 temporarily or permanently using a mechanical securing arrangement 12 , for example a stiff membrane, which is secured with screws 13 in the jaw bone, at the outer surface 1 b thereof.
  • a mechanical securing arrangement 12 for example a stiff membrane, which is secured with screws 13 in the jaw bone, at the outer surface 1 b thereof.
  • the membrane or reinforcement can be secured by a screw 12 ′ which is screwed into an inner threaded hole in the implant.
  • the design of the implant itself can be of a type known per se, and in this connection reference may be made to the “Br ⁇ dot over (a) ⁇ nemark” system.
  • FIG. 2 is an enlarged view showing the configuration of the front surface 4 in FIG. 1.
  • the front surface is designed with an evenness which avoids mechanical impact on the mucous membrane when the implant is inserted into the sinus.
  • the front surface can have a polished part 14 and, if appropriate, can be designed with a surface roughness or porous layer 14 a at the sides.
  • the surface roughness or porous layer in this case functions as a reservoir for layers of GSS.
  • the parts 4 ′ contiguous to the front surface 4 can also be provided with said surface roughness or porous layer and can be charged with said GSS.
  • FIG. 3 shows the surface roughness 14 on the front surface 4 in an enlarged view compared to FIG. 2.
  • a layer of GSS applied to the surface roughness is indicated by 15 .
  • the rest of the implant 3 can be coated completely or partially with GSS of a chosen amount and concentration 16 .
  • the thickness of the applied GSS can, for example, lie in the range of, for example, a few ⁇ ngström to a few micrometers, a few nanometers.
  • a coating has been applied to an outer thread 16 with a GSS amount or GSS concentration 17 .
  • the GSS has been symbolized by broken lines 15 , 16 .
  • the front surface 4 ′′ can be designed in different ways.
  • the front surface can be substantially plane or form an only slightly rounded front surface 18 which, at its periphery, has been provided with bevels 18 a, 18 b so as not to cause damage to the aforementioned mucous membrane 6 .
  • FIG. 6 shows a further embodiment of the front surface 4 ′′′, which in this case has the basic shape of a sphere 19 .
  • the mucous membrane 6 can, at its underside 6 a, be more or less firmly attached to or in the inner surface 1 a of the upper jaw bone 1 .
  • a certain release function is to free the mucous membrane 6 from the inner surface 1 a before the lifting in accordance with FIG. 1 is carried out.
  • Said release can be done with the aid of an instrument or member 20 which at its front part has a blade-shaped part 21 . After passing through the jaw bone hole 22 , said part 21 can be driven in between the inner surface 1 a of the jaw bone and the underside 6 a of the mucous membrane 6 so as to effect a release function between the jaw bone and the mucous membrane.
  • FIG. 7 shows this initial stage.
  • the member 20 can be given a rotation movement 22 about its longitudinal axis 23 , which results in the mucous membrane 6 being freed from the inner surface 1 a around the mouth 2 a where the jaw bone hole opens into the sinus.
  • FIG. 7 an initial stage for formation of the space 7 in FIG. 1 has commenced.
  • the initial space which has been created with the member 20 in the stage shown in FIG. 7 has been indicated by 7 ′.
  • the member 20 and its insertion and releasing parts 21 can be designed different ways.
  • the member 20 can be provided with several parts 21 .
  • the parts can be arranged to be resilient relative to the longitudinal part 24 of the member.
  • the part or parts 21 can be provided with rounded surfaces cooperating with the mucous membrane 6 so that the latter is not damaged by the member 20 during the initial release.
  • the invention has been described above such that the mucous membrane 6 is considered as belonging to the sinus, like any space between the underside 6 a of the mucous membrane and the top surface 1 a of the jaw bone.

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Transplantation (AREA)
  • Otolaryngology (AREA)
  • Prostheses (AREA)
  • Dental Prosthetics (AREA)
  • Materials For Medical Uses (AREA)
US10/521,149 2002-07-25 2003-06-26 Arrangement for increasing the stress resistance of implants, and one such implant Abandoned US20050240274A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/236,903 US8771361B2 (en) 2002-07-25 2008-09-24 Arrangement for increasing the stress resistance of implants and one such implant
US14/288,078 US9855116B2 (en) 2002-07-25 2014-05-27 Arrangement for increasing the stress resistance of implants and one such implant

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0202319-0 2002-07-25
SE0202319A SE522983C2 (sv) 2002-07-25 2002-07-25 Arrangemang för att öka tåligheten mot belastning på implantat samt sådant implantat
PCT/SE2003/001110 WO2004010891A1 (en) 2002-07-25 2003-06-26 Arrangement for increasing the stress resistance of implants, and one such implant

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/001110 A-371-Of-International WO2004010891A1 (en) 2002-07-25 2003-06-26 Arrangement for increasing the stress resistance of implants, and one such implant

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/236,903 Division US8771361B2 (en) 2002-07-25 2008-09-24 Arrangement for increasing the stress resistance of implants and one such implant

Publications (1)

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US20050240274A1 true US20050240274A1 (en) 2005-10-27

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Family Applications (3)

Application Number Title Priority Date Filing Date
US10/521,149 Abandoned US20050240274A1 (en) 2002-07-25 2003-06-26 Arrangement for increasing the stress resistance of implants, and one such implant
US12/236,903 Expired - Fee Related US8771361B2 (en) 2002-07-25 2008-09-24 Arrangement for increasing the stress resistance of implants and one such implant
US14/288,078 Expired - Fee Related US9855116B2 (en) 2002-07-25 2014-05-27 Arrangement for increasing the stress resistance of implants and one such implant

Family Applications After (2)

Application Number Title Priority Date Filing Date
US12/236,903 Expired - Fee Related US8771361B2 (en) 2002-07-25 2008-09-24 Arrangement for increasing the stress resistance of implants and one such implant
US14/288,078 Expired - Fee Related US9855116B2 (en) 2002-07-25 2014-05-27 Arrangement for increasing the stress resistance of implants and one such implant

Country Status (9)

Country Link
US (3) US20050240274A1 (https=)
EP (1) EP1545381B1 (https=)
JP (1) JP2005533601A (https=)
AU (1) AU2003237750B2 (https=)
BR (1) BR0312955A (https=)
CA (1) CA2493778A1 (https=)
ES (1) ES2526804T3 (https=)
SE (1) SE522983C2 (https=)
WO (1) WO2004010891A1 (https=)

Cited By (1)

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CN112716628A (zh) * 2020-12-29 2021-04-30 江苏创英医疗器械有限公司 用于上颌窦植入的种植装置及方法

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EP1576935A1 (en) * 2004-03-16 2005-09-21 Alberto Dr. Giordano Endosseous dental implant
JP5418968B2 (ja) * 2009-07-31 2014-02-19 宏 黒澤 上顎洞底挙上用部材
US9278413B2 (en) 2010-09-01 2016-03-08 Mayo Foundation For Medical Education And Research Method for optimization of joint arthroplasty component design
GB2523828A (en) 2014-03-07 2015-09-09 Nobel Biocare Services Ag Dental implant
GB2523827A (en) 2014-03-07 2015-09-09 Nobel Biocare Services Ag Dental implant
CN104523343B (zh) * 2015-01-09 2017-01-25 威海威高洁丽康生物材料有限公司 一种成套上颌窦内提升手术工具
CN105982747B (zh) * 2015-03-06 2018-10-09 北京大学口腔医学院 一种面向修复的牙支持式种植手术导板的设计制作方法
RU2600150C1 (ru) * 2015-05-19 2016-10-20 Сергей Вячеславович Купряхин Способ дентальной имплантации на верхней челюсти при значительной атрофии альвеолярного отростка
CN105640658A (zh) * 2016-03-21 2016-06-08 吴大怡 骨平面种植体上部基台
RU2672694C1 (ru) * 2018-02-08 2018-11-19 Общество с ограниченной ответственностью "Практика доктора Купряхина" Способ мягкого синуслифтинга в сочетании с одномоментной имплантацией

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US4531916A (en) * 1983-07-08 1985-07-30 W. L. Gore & Associates, Inc. Dental implant with expanded PTFE gingival interface
US5839899A (en) * 1996-03-01 1998-11-24 Robinson; Dane Q. Method and apparatus for growing jaw bone utilizing a guided-tissue regeneration plate support and fixation system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112716628A (zh) * 2020-12-29 2021-04-30 江苏创英医疗器械有限公司 用于上颌窦植入的种植装置及方法

Also Published As

Publication number Publication date
EP1545381A1 (en) 2005-06-29
US20090024220A1 (en) 2009-01-22
SE0202319L (sv) 2004-01-26
SE522983C2 (sv) 2004-03-23
JP2005533601A (ja) 2005-11-10
SE0202319D0 (sv) 2002-07-25
EP1545381B1 (en) 2014-11-19
CA2493778A1 (en) 2004-02-05
AU2003237750A1 (en) 2004-02-16
US8771361B2 (en) 2014-07-08
WO2004010891A1 (en) 2004-02-05
US20140272795A1 (en) 2014-09-18
ES2526804T3 (es) 2015-01-15
US9855116B2 (en) 2018-01-02
AU2003237750B2 (en) 2008-04-24
BR0312955A (pt) 2005-06-14

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