EP1933758A1 - Implant dentaire - Google Patents
Implant dentaireInfo
- Publication number
- EP1933758A1 EP1933758A1 EP06790255A EP06790255A EP1933758A1 EP 1933758 A1 EP1933758 A1 EP 1933758A1 EP 06790255 A EP06790255 A EP 06790255A EP 06790255 A EP06790255 A EP 06790255A EP 1933758 A1 EP1933758 A1 EP 1933758A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- implant
- bone
- implant carrier
- carrier
- macro
- 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.)
- Ceased
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
-
- 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
- A61C8/0036—Tooth replica
-
- 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
Definitions
- the invention relates to a single or multi-root dental implant having a form adapted to the alveolus, which has macroretentations projecting over the alveolar surface, preferably for immediate replacement after tooth loss.
- an implant is known as an exact copy of the lost tooth, wherein the production of the implant is to take place by means of a special sintering process, which is intended to improve the on or ingrowth of the bone material.
- the bone compartment into which the implant carrier is used is usually not homogeneously formed, bulky bone, but especially in areas of the lip and cheek but also in areas Tongue and the palate is very thin.
- the bone that surrounds the tooth root not circularly symmetrical, not even approximately axisymmetric trained around a kind of tooth center or tooth axis, but depending on the tooth shape, position of the tooth in the jaw and also dependent on the load (counterbite) is a different bone quality and Bone quantity before.
- this compact bone has a low regenerative power, since it is hardly perfused and therefore contains only a few cells that are necessary for a good regeneration. All this in contrast to the cancellous (spongy) bone, which is easily compressible, very well perfused and thus can also provide many cells for a rapid regeneration of the bone.
- the bone regularly in those areas where the tooth breaks through into the oral cavity, ie in the cervical area as well as the lip and the cheek but also in areas of the tongue and the palate.
- the underlying bone especially between the teeth regularly, just because of the oval and conical root shape, much thicker and not compact but spongy formed.
- macro-retentions are provided only on the surface areas which are adjacent spongy and thick Knochenberei-, these are generally the adjacent teeth or the jaw end facing sides of the root area of the implant or the implant carrier.
- the arches are in Zahnbogenraum, ie in the longitudinal direction corresponding to the tensile and compressive stresses through the entire chewing organ, much more resilient than transversely to the dental arch.
- This is also due to the fact that the lower jaw is a long bone, which is loaded by the muscle trains mainly in the longitudinal direction and not in the transverse direction.
- the bone structure therefore can not withstand pressure loads through the implant in the transverse direction, as inevitably arise with a uniform distribution of macroretention, without immediately breaking.
- This is similar to a wooden board, which does not break longitudinally when a nail is hammered in, but in the transverse direction, since the structure is also designed to withstand longitudinal loads, not crossways. Compression of the bone is necessary to stabilize the implant during the healing phase in the bone.
- Implants in areas where a thinner, less and / or less resilient and / or compact bone is present, left according to the alveolar surface, or slightly reduced. This is based on the knowledge that the areas of thin, little or no loadable, compact bone must be spared from excessive pressure by the implant during the healing phase necessarily, otherwise there is a Kiiochenbruch and these bone fractions contribute nothing to the support of the implant can be absorbed and subsequently.
- the implant must not be uniformly or unevenly enlarged over the entire surface, as the bone resorption resulting from this general pressure at the same time captures the entire bone surface to the implant and, due to the conical implant shape, leads to implant loss.
- the geometry of the extracted tooth or of the bone compartment, the alveolus in accordance with the state of the art, is recorded in the form of conventional impression materials, laser scanning systems, CT (computed tomography), MRI (magnetic resonance tomography) or other techniques in record form.
- CT computed tomography
- MRI magnetic resonance tomography
- the implant shape is then changed according to the invention by forming macroretention.
- Macroretention is understood to mean protrusions in the alveolar region of the implant which protrude beyond the surface corresponding to the alveolar surface by at least 0.08 mm, preferably by at least 0.4 mm (corresponding to 80 or 400 ⁇ m). These macro retentions fix the implant selectively during its healing period and prevent it from being pushed out of the socket before it has healed due to the generally conical shape of the alveolar socket.
- the outer contour that is, the peripheral areas, enlarged in at least two horizons, so as to achieve the necessary stability and retention safely beyond the Einheilphase addition.
- microretention In contrast to macro retentions, microretention, according to the prior art, preferably covers the entire implant body located in the bone. In the case of microretention, a mean surface roughness (distance between base profile and reference profile) between 40 ⁇ m and 70 ⁇ m is desired.
- ZrO2 Y-TZP Tetragonal Zirconia Polycristal, yttrium stabilized
- ZrO2 Y-TZP Tetragonal Zirconia Polycristal, yttrium stabilized
- This may only be as short as possible, preferably in pulsed form, since otherwise too much material is removed (0.1 - 0.5 seconds per point reached are completely sufficient).
- the number of macro-retention areas depends on the anatomical conditions, such as the position of the root (maxilla, mandible, lateral tooth, anterior tooth, one-root, multi-root and the length of the tooth). For one-root teeth, it is possible to provide between two and eight retention areas, mostly four retention areas.
- the height of these retention areas ie their largest elevation above that of the alveolar surface, is above 0.08 mm as the lowest limit (at lower altitude, one soon reaches the range of microretention), better above 0.1 mm, preferably above 0 , 2 mm, and more preferably (at least some) above 0.4 mm, wherein, when using different heights on an implant depending on its conicity, the heights of macroretention may increase from the root apex to the tooth crown so as not to interfere with the bone compartment during insertion cause.
- the implant diameter becomes preferably by 0.05 mm to 1 mm, optionally reduced by 1.5 mm, to safely avoid pressure absorption or fracture.
- the macroretention can always be greater if the bone is very spongy and / or if there is a lot of cancellous bone.
- it is provided to form two preferably elongated macro retentions in the longitudinal direction of the tooth in one-root teeth, these are located in the interdental region preferably palatal or lingually located and serve as guides, so that the implant when setting not cheek or lip pressure exercises or even after cheek or lips can slide off and the thin bone breaks it. In multi-root teething this is prevented by the geometry of the alveolus.
- Another aspect of the invention is to make the implant somewhat shorter, preferably 0.3 mm to 1 mm, than the socket, in order to prevent it from pressing on the pointed base of the socket, in particular during the insertion or insertion, because this leads to a load on the conical implant in the extraction direction.
- FIG. 1 shows a horizontal section through a human upper jaw in the area of
- FIG. 2 shows a tooth sitting in the jaw in section II-II corresponding to FIG. 1
- Fig. 3 shows a row of teeth according to section IH-III of Fig. 1
- Fig. 4 shows a Praemolar in the view from the cheek
- FIG. 5 shows an implant milled according to the invention with the crown stump and FIG
- FIG. 6 shows the premolar of FIG. 4 in a lateral view from the viewing direction from the intermediate tooth area
- FIG. 7 shows the implant according to FIG. 5 in a lateral view with macro retentions in the interdental area
- FIG. 8 shows a cylindrical titanium implant according to the prior art
- FIG. 9 shows some examples of the arrangement of macro retentions on the implant. 10 in purely schematic representations 10a to 10h different cross-sectional shapes of macro retentions
- Fig. 11 shows a variant of the invention with extended root area
- Fig. 12 shows a variant with discrete macro retentions.
- a human upper jaw is shown, wherein the outside is called cheek-wise and the inside with palatalürtig.
- the black circle designated by the reference numeral 101 in the left-hand part of FIG. 1 represents a cylindrical root-shaped implant according to the prior art.
- the incongruences 102 resulting from the prior art are clearly evident and cause the problems mentioned at the outset poor primary stability.
- the jawbone is not homogeneously formed, so in addition to compact bone areas 104 so-called cancellous, so not compact but sponge-shaped bone areas.
- the cancellous bone region 103 usually extends in the bone reinforced in the interdental region and around the lower root half, especially in the lower jaw.
- the compact bone region 104 covers the root with a thin layer that is not capable of bearing loads, but also along the cheeks and lips.
- Fig. 2 shows a section along the section line II-II of Fig. 1 by a tooth in the cheek and palate direction. In this view, the thin compact bone areas 104 are clearly visible.
- FIG. 3 shows a section through a row of teeth from the front to the rear, according to the section 111-111 in FIG. 1.
- Spongious bone 103 can generally be found in the region of the interdental region.
- the object of the invention is to provide macroretention 107 only in those areas of the implant that are adjacent to a spongious bone, knowing the spatial bone distribution.
- the punctiform macroretention agents 107 according to the invention in the insensitive bone regions are completely sufficient.
- the regions that are free from macro-retention according to the invention are designated 110 in the figures.
- Reference numeral 105 denotes the maxillary sinus.
- FIG. 4 shows a tooth in the view from the cheek and FIG. 5 a correspondingly associated implant with a crown stump 106 and the laterally projecting macro retentions 107.
- FIG. 6 shows the same praemolar from the direction of view from the interdental region, thus approximately at 90 ° Rotated relative to FIG. 4.
- the recession 108 between the roots is shown as well as the region 109 between the roots.
- FIG. 7 illustrates a corresponding implant. Ha This view is clear that left and right in the jaw corresponding to the cheek and palate side no macroretentions project, but these are arranged only on the sides directed in the jaw to the adjacent teeth.
- the areas in which no macro retentions are provided are again denoted by 110.
- FIG. 8 represents an implant according to the prior art, which has cylindrical peripheral cylindrical projections along the circumferential surface helical retention.
- the shape of the macro-retentions 107 may, as shown in FIGS. 10a to 10h, be diverse.
- the illustrated profiles are essentially (except 10b and 10g) also to be used in their mirrored form.
- any kind of projections or projections such as e.g. undulating, serrated, rectangular or rounded, triangular, or net-shaped. These can either be integrally connected to the implant or subsequently applied to the tooth or the original tooth adapted implant, preferably by gluing.
- punctiform or small-area macro retentions 113 are provided, as shown schematically in Fig. 9 and Fig.
- the implant may be circumferentially aligned, offset, or arranged randomly and consist essentially of dome-shaped projections.
- the implant can be adapted by means of a suitable software which is present in the prior art and possibly slightly adapted, so that missing root parts (for example after a root tip resection) are also simulated, whereby the original space is filled. Likewise, tooth anomalies can be corrected.
- the bone septum between the roots is preferably first completely or partially removed in the bone compartment, and the implant is then copied from an impression.
- connection crown - implant body can be above as well as below the gum, so that the implant body covered by the gums, therefore unloaded, can heal. With good bone quality and bone quantity, the implant body can be provided immediately after insertion into the bone with a crown structure in the sense of an immediately loadable implant.
- the implant can be made of any known and proven material in the prior art, it must only be biocompatible and must not be absorbable, preferably from ZrO2.
- the surfaces of the implant are in the bone contact area, as known in the art, usually etched, sandblasted and / or coated with hydroxyapatite (roughness corresponds to microretention).
- they may be provided with growth factors (stem cells) to promote the growth of bone material or gums. Future surface treatments and crown abutments with implants designed according to the invention can also be used since the invention does not impair these aspects.
- an essential aspect of the invention is that it allows the periodontal damaged denture, the alveolus can be deepened by a milling, so that the implant body is extended by this milling in the tooth axis direction.
- the implant is provided with a root extension, as shown schematically in FIG. 11.
- the implant then consists of a cylindrical portion 114 at the bone-side elongated end corresponding to the portion drilled in the jaw and one of the natural alveoli (the dotted line indicates the transition) adapted portion 115 between the cylindrical portion 114 and the crown stump.
- macroretentions 116 and 107 are provided on both the cylindrical portion 114 and the adapted portion 115, in correspondence with the bone finding.
- the macroretention can also be arranged circularly according to the bone findings, if there is sufficient cancellous bone in this bone depth.
- macro retentions 116 are particularly to pay attention to their height with respect to the cylinder jacket.
- the root extension can also be conically shaped or have an oval or other cross-section, since the implant is set by hammering and not by screwing.
- Another aspect is the avoidance of pockets in multi-root teeth in Zaluiéesschwund.
- a piece be removed (preferably before the determination of the shape of the alveolus to account for this ablation exactly) and so the bifurcation in the implant are moved bone forward whereby the bone rests against the implant along a closed line, despite a decrease, thus avoiding a bone pocket between the roots (in the bifurcation area and trifurcation area).
- the implant in the area of the roots, has the form of the alveoli (with macro-retention in the appropriate places) and an area in the region of the union of the roots with the shape milled into the jaw.
- alveolus wells for example by milling, before determining their shape according to bone quality and bone quantity. These are then included in the determination of the shape of the alveolus and lead to the formation of corresponding projections on the implant carrier.
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 Prosthetics (AREA)
- Prostheses (AREA)
- Dental Preparations (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0162805A AT502881B1 (de) | 2005-10-05 | 2005-10-05 | Zahnimplantat |
PCT/AT2006/000405 WO2007038817A1 (fr) | 2005-10-05 | 2006-10-05 | Implant dentaire |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1933758A1 true EP1933758A1 (fr) | 2008-06-25 |
Family
ID=37607444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06790255A Ceased EP1933758A1 (fr) | 2005-10-05 | 2006-10-05 | Implant dentaire |
Country Status (18)
Country | Link |
---|---|
US (1) | US8287279B2 (fr) |
EP (1) | EP1933758A1 (fr) |
JP (1) | JP5429520B2 (fr) |
KR (1) | KR101244546B1 (fr) |
CN (1) | CN101232854B (fr) |
AT (1) | AT502881B1 (fr) |
AU (1) | AU2006299721B2 (fr) |
BR (1) | BRPI0617989A2 (fr) |
CA (1) | CA2624830C (fr) |
EA (1) | EA018834B1 (fr) |
HK (1) | HK1117723A1 (fr) |
IL (1) | IL190491A (fr) |
MY (1) | MY148827A (fr) |
NO (1) | NO20082040L (fr) |
NZ (1) | NZ567134A (fr) |
UA (1) | UA95919C2 (fr) |
WO (1) | WO2007038817A1 (fr) |
ZA (1) | ZA200802964B (fr) |
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US8454362B2 (en) | 2006-10-16 | 2013-06-04 | Natural Dental Implants Ag | Customized dental prosthesis for periodontal- or osseointegration, and related systems and methods |
US10426578B2 (en) | 2006-10-16 | 2019-10-01 | Natural Dental Implants, Ag | Customized dental prosthesis for periodontal or osseointegration and related systems |
US8602780B2 (en) | 2006-10-16 | 2013-12-10 | Natural Dental Implants, Ag | Customized dental prosthesis for periodontal or osseointegration and related systems and methods |
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US20120308963A1 (en) * | 2009-10-01 | 2012-12-06 | The Trustees Of Columbia University In The City Of New York | Dental diagnosic and dental restoration methods, systems, apparatuses, and devices |
IL201902A (en) | 2009-11-03 | 2012-12-31 | Ben-Zion Karmon | Dental implant |
GB2484992A (en) * | 2010-11-01 | 2012-05-02 | Denpros Design Company Ltd | Dental implant having an asymmetric root portion. |
WO2012142127A1 (fr) * | 2011-04-11 | 2012-10-18 | Triodent Holdings Limited | Implant dentaire et couronne, et procédé de positionnement d'implant dentaire et de couronne en une seule visite |
BR112013030990B1 (pt) * | 2011-06-02 | 2020-12-22 | Mis Implants Technologies Ltd | Implante dentário |
WO2012173577A1 (fr) * | 2011-06-13 | 2012-12-20 | Haydar Imad | Implant dentaire à section ovale |
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CN102715961B (zh) * | 2012-07-11 | 2015-02-04 | 唐志辉 | 个体化解剖型牙根种植体 |
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US9433481B2 (en) | 2013-06-10 | 2016-09-06 | Sergei Anatolievitch Agafontsev | Implantable replica of natural tooth |
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JP2017506122A (ja) | 2014-02-20 | 2017-03-02 | エムアイエス インプランツ テクノロジーズ リミテッド | 歯科インプラント |
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US11253344B2 (en) * | 2018-10-12 | 2022-02-22 | Dentsply Sirona Inc. | Custom dental implant and method and system for making a custom dental implant |
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US6743233B1 (en) * | 2000-08-02 | 2004-06-01 | Orthopaedic Biosystems, Ltd., Inc. | Medical screw and method of installation |
KR100414885B1 (ko) * | 2000-12-09 | 2004-01-24 | 주식회사 워랜텍 | 치과용 임플란트 및 컴팩션 드릴 헤드 |
DE10109118A1 (de) * | 2001-02-24 | 2002-09-12 | Burghardt Krebber | Zahnmedizinisches, individuelles Sofortimplantat und Verfahren zur Herstellung des Implantats |
DE10159683A1 (de) * | 2001-11-30 | 2003-06-18 | Michael Gahlert | Dantalimplantat |
US20050048440A1 (en) * | 2003-08-26 | 2005-03-03 | Feng James C. | Dental implants and methods for their fabrication and use |
DE202004020338U1 (de) * | 2004-06-08 | 2005-05-12 | Feith, Johan, Dr. | Dentalimplantat |
US20070264612A1 (en) * | 2004-11-23 | 2007-11-15 | Mount K T | Dental implant and method for making and installing same |
-
2005
- 2005-10-05 AT AT0162805A patent/AT502881B1/de not_active IP Right Cessation
-
2006
- 2006-05-10 UA UAA200803529A patent/UA95919C2/ru unknown
- 2006-10-05 EP EP06790255A patent/EP1933758A1/fr not_active Ceased
- 2006-10-05 MY MYPI20080921A patent/MY148827A/en unknown
- 2006-10-05 CN CN2006800279672A patent/CN101232854B/zh not_active Expired - Fee Related
- 2006-10-05 AU AU2006299721A patent/AU2006299721B2/en not_active Ceased
- 2006-10-05 WO PCT/AT2006/000405 patent/WO2007038817A1/fr active Application Filing
- 2006-10-05 JP JP2008533813A patent/JP5429520B2/ja not_active Expired - Fee Related
- 2006-10-05 NZ NZ567134A patent/NZ567134A/en not_active IP Right Cessation
- 2006-10-05 KR KR1020087010789A patent/KR101244546B1/ko active IP Right Grant
- 2006-10-05 CA CA2624830A patent/CA2624830C/fr not_active Expired - Fee Related
- 2006-10-05 BR BRPI0617989-4A patent/BRPI0617989A2/pt not_active Application Discontinuation
- 2006-10-05 US US12/089,268 patent/US8287279B2/en active Active
- 2006-10-05 EA EA200800688A patent/EA018834B1/ru not_active IP Right Cessation
-
2008
- 2008-03-27 IL IL190491A patent/IL190491A/en not_active IP Right Cessation
- 2008-04-04 ZA ZA200802964A patent/ZA200802964B/xx unknown
- 2008-05-05 NO NO20082040A patent/NO20082040L/no not_active Application Discontinuation
- 2008-08-11 HK HK08108837.2A patent/HK1117723A1/xx not_active IP Right Cessation
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US3717932A (en) * | 1970-03-19 | 1973-02-27 | Vitredent Corp | Tooth replacement |
US5088926A (en) * | 1990-01-05 | 1992-02-18 | Manfred Lang | Implant for the jawbone |
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See also references of WO2007038817A1 * |
Also Published As
Publication number | Publication date |
---|---|
EA200800688A1 (ru) | 2008-10-30 |
MY148827A (en) | 2013-06-14 |
CA2624830C (fr) | 2013-12-10 |
HK1117723A1 (en) | 2009-01-23 |
IL190491A (en) | 2012-07-31 |
US8287279B2 (en) | 2012-10-16 |
CN101232854A (zh) | 2008-07-30 |
AU2006299721A1 (en) | 2007-04-12 |
JP2009509696A (ja) | 2009-03-12 |
KR20080046749A (ko) | 2008-05-27 |
KR101244546B1 (ko) | 2013-03-18 |
BRPI0617989A2 (pt) | 2011-08-16 |
ZA200802964B (en) | 2009-05-27 |
CN101232854B (zh) | 2012-05-09 |
WO2007038817A1 (fr) | 2007-04-12 |
AT502881B1 (de) | 2007-08-15 |
IL190491A0 (en) | 2008-11-03 |
EA018834B1 (ru) | 2013-11-29 |
AT502881A1 (de) | 2007-06-15 |
NZ567134A (en) | 2010-11-26 |
AU2006299721B2 (en) | 2012-12-13 |
UA95919C2 (ru) | 2011-09-26 |
NO20082040L (no) | 2008-05-28 |
US20090092944A1 (en) | 2009-04-09 |
CA2624830A1 (fr) | 2007-04-12 |
JP5429520B2 (ja) | 2014-02-26 |
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