CN101304703B - Two-part dental implant - Google Patents
Two-part dental implant Download PDFInfo
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- CN101304703B CN101304703B CN2006800409017A CN200680040901A CN101304703B CN 101304703 B CN101304703 B CN 101304703B CN 2006800409017 A CN2006800409017 A CN 2006800409017A CN 200680040901 A CN200680040901 A CN 200680040901A CN 101304703 B CN101304703 B CN 101304703B
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- bar
- seal
- distally
- dental implant
- implantation piece
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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
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
-
- 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
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
-
- 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
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
-
- 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
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0054—Connecting devices for joining an upper structure with an implant member, e.g. spacers having a cylindrical implant connecting part
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)
Abstract
The invention relates to a two-part dental implant comprising proximal and distal implant parts which, when interconnected at a connection point, are indirectly contiguous to each other and comprise in the area of the connection point surfaces which are oriented to each other and between which a sealing body provided with sealing surfaces oriented towards the implant part surfaces is arranged, said sealing surface, when said two implant parts are in a definitely connected state, are sealingly applied against the implant part surfaces oriented to each other, abutment surfaces oriented to each other are also arranged between the proximal and distal parts and are abutted to each other when the implant is in the final connected state and limit the approach distance between the implant part surfaces oriented to each other, between which a sealing body is arranged,; in such a way that the abutment surfaces define the minimum distance between the implant part surfaces oriented to each and said minimum distance is bridged by the sealing body which is made at least partially of a plastic material.
Description
Technical field
The present invention relates to a kind of dimeric dental implant.The distally implantation piece constitutes and is used to implant the artificial root of the tooth of jawbone and the nearside implantation piece supports artificial corona.
The present invention relates to being connected of distally and nearside implantation piece especially, is also referred to as implant-abutment below and connects and adopt abbreviation IAV.Be fitted to each other on the distal end geometry of the proximal end of distally implantation piece and nearside implantation piece and constitute and under the implanting state of bar, adjoin each other.
Background technology
Dental implant is used for substituting the tooth that loses.Dental implant can be divided into monomer and binary system.The present invention relates to the binary system.This binary system has a distally implantation piece and a nearside implantation piece.The distally implantation piece is implanted jawbone and is grown together with bone there.The nearside implantation piece---is also referred to as abutment---to several millimeters of oral cavity projectioies and as the artificial tooth stump.In this case, the distally implantation piece forms artificial root of the tooth, and the nearside implantation piece then forms foregoing artificial tooth stump.The nearside implantation piece receives the artificial tooth of multi-form artificial tooth, for example corona form and by the distally implantation piece artificial tooth is connected with jaw.
Distally implantation piece and nearside implantation piece longitudinally interconnect by a bolt that longitudinally stretches usually.The geometry of bonding pad constitutes between distally implantation piece and nearside implantation piece, makes between two implantation pieces form fit ground or power connects ordinatedly or not only form fit but also power connected ordinatedly.
To being connected most important requirement between distally implantation piece and the nearside implantation piece being: connecting must be firm, because it bears huge masticatory force.The counterpart gap that must very accurately process and under engagement state, not have.This structural member should can separate and be connected with it again at any time with implant.This structural member should be replaced by other structural members.Two implantation pieces must rigidity under connection status and are not had the gap and prevent that implantation piece from reversing around longitudinal axis.Pack in a neck a plurality of implantation pieces and each implantation piece of this point should have the complicated structure that is mutually related, for example should hold under the situation of the implantation bridgeware that bolting cooperates and have the particular importance meaning.Have only and adopt accurate anti-torsion member could accurately produce this implantation piece structure ordinatedly.If a plurality of implant infrastructure spares directly interconnect, for example support in the ordinary course of things under the situation of carriage substructure of removable prosthese, can cancel antirotation element.To for set carrier structure spare another requirement except the requirement that has itemized of this application being: carrier structure spare must be able to be realized: even under implantation piece keeper, situation as common in the non-bone of packing into parallel to each other, a plurality of interconnective structural members also can be sleeved on the implantation piece without a doubt and be attached thereto.
Dimeric known dental implant can not satisfy above-mentioned requirements with desirable degree.In many dimeric known implantation pieces, the transition between two implantation pieces all is an important problem.For example can not be satisfactory by EP 0 842 643, US 5.919.043, EP 1 371 342 or US 6 152 737 disclosed known solutions.
Summary of the invention
The objective of the invention is to, a kind of dimeric dental implant that is improved aspect above-mentioned requirements is provided.
The invention provides a kind of dimeric dental implant, comprise distally implantation piece and nearside implantation piece, described implantation piece under the interconnective state the connecting portion place be adjacent to each other at least indirectly and zone at connecting portion in have the surface that faces with each other, wherein, between the surface that faces with each other of distally implantation piece and nearside implantation piece, be provided with seal, it has the sealing surface in the face of described surface, described sealing surface is close to the surface that faces with each other of described implantation piece on the final connection status lower seal ground of two implantation pieces, and be provided with the contact surface that faces with each other between this external distally implantation piece and the nearside implantation piece, described contact surface docked and limited described implantation piece mutually under the situation that dental implant installs centre be provided with seal two mutual opposed face near size, thereby described contact surface limits the minimum range on two opposed facing surfaces of described implantation piece, it overlaps by seal, it is characterized in that, described seal to small part is made by elastomeric material, and described seal is arranged between the surface of distally implantation piece and nearside implantation piece in the radial free space, and the elongation diametrically of wherein said seal is greater than the free space between them under described distally implantation piece and the complete interconnective state of nearside implantation piece.
In one embodiment, described opposed facing surface constitutes taper, has identical coning angle and is provided with one heart concentrically with respect to one another and with the longitudinal axis of described dental implant.
This purpose is achieved by a kind of dimeric dental implant according to the present invention, wherein between distally implantation piece and nearside implantation piece, has the sealing member that utilizes seal to form, its face that nearside is relative with the distally implantation piece seals like this, makes antibacterial not invade.
Distally and nearside implantation piece preferably have the contact surface that faces with each other, and it is butt joint each other under the situation that dental implant installs.Limit the mode of minimum ranges on two surfaces that face with each other of implantation piece by the contact surface that faces with each other, two mutual opposed face that are provided with seal of these contact surfaces restriction implantation pieces near size, and therefore limit the maximum compression of seal.In this manner, axial force, for example masticatory force of guaranteeing to act on implantation piece be can't help seal and absorbed, but the contact surface transmission by facing with each other.
In a kind of preferred version of seal, the sealing body has the sealing surface of elastomeric material, thereby under distally and the interconnective situation of nearside implantation piece, sealing surface is close on the surface that distally and nearside implantation piece be provided with for it hermetically.Sealing member and nearside and distally implantation piece constitute like this, make between distally and nearside implantation piece, produce final the connection after, exist surface pressing between the respective surfaces of the sealing surface of seal and two implantation pieces, this surface pressing implant bear masticatory force and since this masticatory force from distad also still maintenance under the situation of strain in the zone of implantation piece transition of nearside.
Therefore, according to the present invention, as the seal of sealing member be arranged on two dimeric bar install under the situation bar vertically on toward each other and between the end face at the radial outside of bar, the sealing body is sized to, make its under the situation of dental implant axial load not along keeping compression with minimum degree all the time under the axial compression of bar and the situation in side loads.Therefore sealing member only with the degree compression of necessity, makes it guarantee all that in the case of any possible implant-abutment connection all seals when implant engages.The degree of compression depends on material and material thickness, and under the bigger sealing member situation of utilization structure height, the compression probability of material is less, with the motion in the compensation sealing district.
For seal is installed, be provided preferably with the seal support, its assist location part as seal uses and can be equipped by the manufacturer of seal, thus the dentist that implant only is installed utilizes the seal support to be easy to install seal.
Below the experiment introduced in detail show that the sealing member with seal of being made by rigid material can not guarantee desired sealing:
The implant of checking is sandwiched holding device regularly on the height of implant convex shoulder (proximal end of distally implantation piece).
The nearside implantation piece is screwed on the implantation piece of distally with the installing force of determining by means of bolt.
The proximal end face of proximad implantation piece also makes the implant components of joint produce the material deformation of elasticity (reversible) with the power that becomes the mode at 30 ° of angles to apply 100N with the longitudinal axis of implant thus.
Draw following measurement result:
In two surf zones that face with each other of two implantation pieces, during using, masterpiece produces following variation:
On the power acting surface, the size of the norminal size that sealing member had (definite gap) has improved numerical value 〉=1 μ m.
On the opposite face of power effect, the size of the norminal size that sealing member had (definite gap) has reduced numerical value 〉=50 μ m simultaneously.
Titanium alloy (Ti6Al4V) and pottery (ZrO are adopted in experiment
2) carry out.
These detect to support the understanding of institute of the present invention foundations, and sealing member promptly inflexible or elastically deformable can not prevent that antibacterial from invading in this zone.
Competence exertion effect when only under the connection situation, not having masterpiece to be used for its element with the sealing member on the seal maintenance deformation principle basis.
Dental implant be used for substituting the organ of mastication lose and therefore must capacity, so-called masticatory force also bears these power lastingly.Be connected and installed under the axial force situation of power in very little additional axial force with above bolt, no longer closed gap will occur when using rigidity or ductile seal.Therefore these connections can not be called fungi-proofing.
To seal and separately the required power of the surface pressing between the implantation piece can produce according to dual mode.A kind of is in corresponding selection ways of connecting---for example axial bolts connect---and the situation of the type of sealing member and setting under, seal during the connection of nearside and distally implantation piece between two implantation pieces elastic compression.Advantageously so here setting, make seal have the disk shape of band center through hole and be arranged on the distally and surfaces that two of the nearside implantation piece radially extend between.
Another kind is that sealing member also can have one and produces between distally and nearside implantation piece and is connected expansible seal afterwards.This set realizes in the following cases that preferably promptly two implantation pieces is surperficial diametrically opposed, thereby the gap that is full of by sealing member between nearside and the distally implantation piece is by the seal filling with tube shape that distal end attenuates when needing.Advantageously, seal have the elastic characteristic of by the agency of or under its state that for example shrinks, pack into nearside or distally implantation piece by cooling in, subsequently separately another implantation piece is connected with first implantation piece and seal subsequently---for example under situation about heating---expansion.This identical principle also can be used for the sealing member that seal has the disk shape that adopts central authorities' perforation setting.
The material that is applicable to seal is the plastics of biocompatible, particularly elastomer or thermosetting plastics.Also can select the mixture that comprises that rubber and PTFE are suitable especially to this.This mixture preferably includes the white carbon black as filler.Elastoplast as seal also can use thermoplastic elastomer body and elastomer fusion (for example polypropylene of polyene hydrocarbon system), thermoplastic (for example Perfluoroelastomer (PTFE, FKM, FFKM, FFPM) and polyether-ether-ketone (PEEK)) and thermosetting plastics (amino or bakelite) or silicon.
In these elastomers, particularly suitable contains PTFE as stock and contains the FFKM of silicic acid as filler.This elastomeric black utilizes white carbon black to obtain, and white utilizes titanium dioxide or barium sulfate to obtain.Only silicic acid just can produce enough white.
Particularly suitable also have a kind of seal, its major part is formed by elastomer, is coated with thermoplastic or thermosetting plastics on its outside, and PTFE preferably.In this case, elastomer can continue to keep stress and the anti-oral cavity property of PTFE and continue sealing.
The another kind of coating material that is suitable for is dimer such as polyparaphenylene's dimethylene (Diapraxylylen), and it also is known as parylene and can be coated on the surface of the coating of wanting with plasma-coated method.The coating layer thickness that is suitable for is between 0.5 μ m to the 50 μ m.The particularly suitable coating layer thickness is between 1 μ m to the 5 μ m, for example 3 μ m.The structural formula of this coating material is shown below for example:
The surface of parylene's coating can add the nano coating that is provided with as the metal of titanium or silver, also can be provided with the nano coating under metal and the ceramic combination.Coating both had been used for fungi-proofing and also had been used for simultaneously keeping neutral with respect to cell tissue.
Preferably polarize in each surface to be coated, to improve its tack to coating.This polarization on surface can be gone up known mode on principle and be utilized plasma method to carry out.
In addition advantageously, the surface polarization that the surface of implant or its member, particularly seal is outside is so that realize better bulk phase capacitive.Can realize by polarization, adjacent tissue, for example not repel or can not repel coating as bone and gingiva.
The seal of partial coating when needing, importantly the face of coating does not have sharp edge.Exactly, the edge of the coating of all should rounding, coating shedding when avoiding the seal distortion.
Advantageously, the inflatable or compression at least 5% of the elastomeric material of seal is preferably more than 20%.In one embodiment, for example the spacing that has by contact surface between two opposed facing surfaces of implantation piece is 250 μ m, thereby sealing member has the norminal size of 250 μ m.In this case, seal for example surpasses norminal size (250 μ m) the 50 μ m of sealing member, thereby just forms the compression (compression 20%) of 50 μ m after assembling.These sizes are to strive for the ideal dimensions that reaches.The structure height of sealing member should be as far as possible little, so that the structure height of crown after not wasting for aesthetic reason; Particularly can consider size between the 0.1mm to 3mm as norminal size.To determining size importantly, sealing member also only in the regional internal strain of its elastically deformable, compresses and for example remain with minimum degree under the situation of side loads in the subregion under the effect of masticatory force.Seal therefore when implant engages only the degree with necessity compress, thereby implant-abutment is connected under any possible situation and all guarantees sealing.The degree of compression depends on the thickness of material and material, and under situation about using than the macrostructure height, the material possibility of compressing is less, with the motion in the compensation sealing district.
For the seal of expanded by heating, adopt under 20 ℃, to have greater than 75 * 10
-6The plastics of/K thermal coefficient of expansion are particularly advantageous.
The outer surface that at least one of preferably sealed body forms the implant outer surface is coated with metal level or ceramic layer in aforesaid mode, and wherein metal level, parylene or ceramic layer prevent in the seal member of antibacterial intrusion by metal or ceramic layer covering.Particularly suitable for example has the nano coating of titanium microgranule.Sealing surface itself can directly be made up of the plastics of biocompatible or coating in the manner described above.At first consider titanium, silver or golden as the material of metal level, also can be the form of alloy components when needing.All anti-oral cavity property of all surface material of sealing member and sterilization do not absorb or only absorb water with not half.
Seal can also comprise that metal spring or other plastics are for example as the independent plastics spring spare of PEEK except elastoplast.Spring part for example can have disc spring or inwardly open wide the shape of U-shaped cross-section circle and guarantee the lasting elasticity and the tension force of seal.In the seal that elastoplast to small part is made up of politef (PTFE, Teflon), polypropylene (PP) or polyether-ether-ketone (PEEK), metal spring is particularly advantageous.
The present invention is based on this understanding, promptly dimeric dental implant does not have micro-gap in the zone of bone exit point, because only on this position, exist implant-abutment to connect (IAV), and being connected between nearside and the distally implantation piece just.This connection causes micro-gap, and this micro-gap is again the theme of present science investigation.Be known in implant-abutment connection following (as long as it accurately is on the bone height) bone and absorb about 0.5mm at most.Fact proved, be connected adjacent tissue (gingiva and bone) with implant-abutment and have the inflammation sign.Fact proved in addition to have polymorphonuclear leukocyte, it accounts for critical role in the bacterial infection process.It is believed that the blow-by that is IAV and the transfer by antibacterial thereof as the reason of this phenomenon.
The result of bone loss is that gingival atrophy causes tooth elongated (implanting hat).Important zone aesthetic is a very big problem as the loss of labial teeth district internal skeleton for example.
Seal preferably adopts the mode of circle, and it is arranged on two and separately between the contact surface of the longitudinal axis vertical distribution of implantation piece and be responsible for sealing fungi-proofingly.This seal or sealing ring preferably are made up of plastic material, and it has than bigger elasticity of the material of two implantation pieces and littler hardness.Two implantation pieces preferably are made up of the acceptable metal of health, pottery or plastics.
In a kind of favourable embodiment of dimeric dental implant, it is vertical with the longitudinal axis of dental implant that the centre of two implantation pieces is provided with the opposed facing surface of seal---diametrically just---and distribution parallel to each other.This surperficial particularly suitable between the seal that adopts the disk form with center through hole is set.Center through hole can be utilized and be distributed in the bolt of implant on axially and produce between nearside and distally implantation piece and be connected.Bolt can also make the so enough compressions of seal, makes it produce desired surface pressing between the sealing surface of implantation piece and surface.Surface pressing is the contact surface restriction by contacting with each other in this case.Under the operating position of determining advantageously, seal in the zone of its external margin thickness greater than the zone line of sealing member.In this manner, seal is out of shape when nearside and distally implantation piece joint in its marginal area like this, and its surface accurately is close on the surface of two implantation pieces.But in alternative embodiment, seal also can have the sealing surface of distribution parallel to each other or constitute according to the mode of O shape circle.
Preferably constitute like this in the transitional region of the geometry that bar is divided in nearside and distally between two bars parts, make that the connection between two bars parts is not only applicable to directly transmit masticatory force from minute bar to minute bar, and also prevent to reverse simultaneously.
According to preferred embodiment a kind of, the distally that forms the distally implantation piece is divided bar to have distad to divide bar to open wide the vertical hole with inwall, inwall have the basic geometry of circular cross section and embed at least near divide vertically going up of bar extend, in the V-arrangement depressed part that the proximal end of minute bar is opened wide.The outer wall that the structure of formation nearside implantation piece divides bar to have the basic geometry of circular cross section on its distal end, it divides vertical hole of bar to match with the distally.
Structure divides the outer wall of bar preferably to have the lobe of V-arrangement in the zone of its distal end, it divides the V-arrangement depressed part of bar to cooperate like this with the distally, make the distally divide the side section of bar V-arrangement depressed part and the such combined effect of side section that the distally structure is divided bar V-arrangement lobe, structure is divided in the V-arrangement lobe of bar such as the V-arrangement depressed part that chock distad divides bar to be moved, until two sides separately of a V-arrangement lobe and two relative contacts in side of a V-arrangement depressed part, and in this manner the distally divide bar and structure divide bar to be interconnected or interconnective situation under, make the distally divide both also location, no gap on direction of rotation in the axial direction of relative position that bar and structure divide bar.The side that contacts with each other is as forming a contact surface effect of determining vertical backstop.The geometry that vertical backstop is determined by implantation piece itself constitutes.Therefore the power that acts on nearside implantation piece (nearside divides bar) from above only is delivered on the distally implantation piece (bar is divided in the distally).If the power of effect is not by described vertical backstop, but by the sealing member derivation, the sealing part can damage owing to continuing to use so.
In this regard, the distally divides the formation of bar that following advantage is provided, and promptly its structure that also can hold no V-arrangement lobe is divided bar, thereby though interconnective minute bar result is the most mutually positioning on axially, is not on direction of rotation.This point is used for fixing under the situation of brace particularly advantageous at bar.Do not need miscellaneous part for holding brace then.The doctor only need and be in the intraoral implant amboceptor of patient with unique associated components and be spirally connected when implanting.
The side of V-arrangement lobe or depressed part is relevant with the cross sectional planes that distributes perpendicular to the longitudinal axis of implant preferably extend radially outwardly and so with tangential vertical distribution.The radial force that for example can make ceramic distally divide bar to wash open is not transmitted in the side of contact after installing by implant thus.
If the distally divides bar by the material of tension more, for example form as titanium particularly, the side also can tilt like this with respect to aforesaid strict radial directed so, makes structure to divide bar (nearside implant just) lobe or distally divide bar (distally implant) to shrink each other on outwards directed direction the side under the depressed part separately separately.Radially and therefore the side for example can also can be with respect to tangentially with 45 ° of inclinations with respect to.Therefore the side is not only relevant with direction of rotation, and plays the effect that centers on side direction.
Structure divides the basic geometry of bar outer wall to be taper in an advantageous manner at least in the zone of V-arrangement lobe.Correspondingly the distally divides the basic geometry of the vertical hole of bar inwall also to be taper in an advantageous manner at least in the zone of V-arrangement depressed part.
The operating position of determining mediated a settlement particularly divide under the situation that bar is made up of pottery in the distally, advantageously, to divide the basic geometry of bar outer wall and also have the distally to divide the basic geometry of the vertical hole of bar inwall be cylindrical in the zone of V-arrangement depressed part to structure at least.
In both cases, structure divides bar outer wall and distally to divide cooperating at least in the zone of V-arrangement depressed part preferably movingly between the bar inwall.
In addition, the distally divides bar and structure to divide bar preferably to have four V-arrangement depressed parts or V-arrangement lobe, and it is evenly distributed on the circumference that divides bar separately.In this manner, divide bar and structure to divide in distally on the direction of rotation and produce four kinds of exactly determined location probabilities between the bar.Alternatively also can have respective numbers lobe and depressed part more or less each other, it is preferably by dividing the circumference uniform distribution of bar separately.The quantity that is suitable for for example is 3,6 or 8.
Also be useful in and have the lobe of opening V-arrangement (V-arrangement obtuse angle) greatly under the distally is divided that bar is corresponding and is connected.
Can consider the angle between 10 ° and 170 ° as V-arrangement angle (open-angle of V-arrangement separately).On the meaning of self-centering's embodiment advantageously, in this regard the V-arrangement angle less than since V-arrangement lobe or depressed part toward each other the material in the zone to the acute angle of the cone of friction separately that forms.
A kind of can being according to the peculiar invention angle that the mode that is different from concrete proposition here realizes, in those end faces that when a distally divides bar and a proximal structure to divide bar at two branch bars joints, can meet each other, before two branch bars are accepted its final axial location toward each other, there is not end face to be on the plane with the longitudinal axis vertical distribution of two branch bars.In having the dimeric known bar of antirotation element dental implant, these bars have the end face with this longitudinal axis vertical distribution generally speaking, they at two branch bars fully in desired mode before staggered the moving, under the situation that minute bar reverses toward each other, can dock mutually, wherein the danger of Cun Zaiing is, proximal structure divides bar to divide on the bar in the distally with the fixed-site of reversing, thereby the pole length that causes forming owing to this wrong installation is greater than regulation, because move two final as yet interlocking of branch bars.Originally the tip engages that relative axial position had that was used to limit two branch bars is not in contact with one another under the sort of situation as yet, because owing to reversing toward each other of two branch bars, before this at least another with separately branch bar longitudinal axis vertical distribution in the face of on the opposite face of receiving the bar of other minutes separately, this face was not to be used for and end face interlocking perpendicular to the longitudinal axis vertical distribution of first fen bar originally.The revolving part error can not be from dynamic(al) correction because two in this manner mutually the face of butt joint can not slide mutually and improve the anglec of rotation thus again automatically according to the mode of clinoplain.
In the known bar of dental implant, the doctor in charge or technical staff only note two branch bars angle error be staggered without spin, so that do not make two branch bars location toward each other on errors present.
Avoided thus according to this problem on the bar of the present invention, promptly do not had this and the end face that divides the longitudinal axis vertical distribution of bar separately---be used for except the final vertically face that terminal backstop is had.This point specifically realizes by V-arrangement depressed part or V-arrangement lobe.But also it is contemplated that the solution on other geometries.
The imagination of institute's foundation is, the face that uses as vertical terminal backstop is arranged on and is different from the radius that is used for localized all the other end faces on direction of rotation that is formed by V-arrangement lobe and depressed part under concrete condition.
Staggered when mobile at two branch bars, the relative inclined-plane of V-arrangement depressed part and V-arrangement lobe contacts an inclined-plane separately.When minute bar continues to engage, slide mutually in the side that is in contact with one another, and occupies its axially relative terminal location each other and reach the correct anglec of rotation each other until two branch bars.
The material that is applicable to distally and nearside implant is metal such as steel or titanium particularly, but also has pottery or plastics.
In order to provide true-to-shape implantation piece according to favourable mode, nearside and distally divide bar preferably or by metal dust die casting (MIM; German: Metallpulver-Spritzgiessen) or by adding the heat flow extruding make.
Metal dust die casting can only filled compression mod in the one procedure, and making whole parts reach it can be almost any compound final geometry.
For metal dust die casting, do not use solid metallic object as the original material of want manufacture component, and be to use fine powder.This powder is with the binding agent mixing that contains plastics and pinch into so-called raw material.On market, be pressed in the compression mod (mould) that divides the bar former separately on the common die casting machine under the high pressure of raw material in the time of about 100 °.The wet part that divides bar to produce separately like this for nearside or distally has had desired final geometry, but must remove binding agent in the step of back again, so that produce simple metal spare.Sintering " baking " parts when in multistage chemistry and thermal process, removing binding agent for this reason and passing through about 1200 ℃ simultaneously.Preferably consider titanium in this case as metal.
If implantation piece, can consider so that ceramic powders die casting (CIM) is as the manufacture method that is suitable for not by metal but be made up of pottery.CIM method and MIM method are identical, and unique difference is the use of material.Be also referred to as the raw material substitution metal dust that adopts ceramic powders here.A kind of alternative embodiment of corresponding therewith foundation, preferably by the ceramic ingredient of CIM manufacturing implant, particularly pottery divides bar.
Alternatively, two branch bars also can or add heat flow extruding manufacturing by cold flow extruding or heat flow extruding.
Bar is divided in the heat flow extruding of approach selectivity manufacturing nearside and distally add to(for) employing, makes two distortion moulds for the join domain of making implant-abutment connection is necessary for each implant geometry.
For the method that adds the heat flow extruding is made the first distortion mould.
When adding the heat flow extruding, titanium is added the zone interior (just being heated to the temperature between 700 ℃ and 900 ℃) of " dynamic recrystallization ".
The distortion mould of structural member (nearside divides bar) is called just mobile extruding of hot solid or the just mobile extruding of heating solid.
The deformation process of implantation piece (bar is divided in the distally) is called anti-mobile extruding of hot cup shell or the anti-mobile extruding of heating cup shell.
The pole material is blocked, heats for this reason and pack into and be out of shape in the mould.Distortion is carried out under high extruding force.
The result who utilizes first deforming step to reach is very near accessible final result.
Whole geometries that formation implant-abutment connects after first deforming step, have just been produced.Also there is very little tolerance owing to cool off the thermal contraction of workpiece.This outer surface since workpiece to add heat flow extruding required to force heat still blunt.Aspect titanium, there is not the danger of bonding (titanium and mould adhesion).
In next deforming step, reach accurate net shape and smooth glossiness surface in the zone that implant-abutment connects between two branch bars then.
Be that second deforming step is used the second distortion mould, utilize it to carry out the workpiece cold calibration or the thermal calibration of (bar is divided in nearside or distally).
Second deforming step can be carried out on the time point of determining during the cooling stage after first deforming step, and workpiece still has the temperature between about 400 ℃ and 450 ℃ in this stage.
In order to carry out second deforming step, separately workpiece automatically taken out from the first distortion mould and the second distortion mould of packing in.
Very little variation only takes place by second deforming step in geometry, because the preferable material titanium carries out very little distortion under the hot state of cold-peace.The metal lattice of titanium becomes fragile rapidly under the situation that continues distortion after short time and part begin to flow.Under strong excessively cold or thermal deformation situation, the titanium tissue is damaged.But when very little distortion, the net shape that workpiece is determined in the zone that connects at implant-abutment, the local flow harden by workpiece also reaches the purpose that improves hardness in addition.
Deformation process always finishes and finishes implant between two branch bars-abutment to connect foregoing other geometries after second deforming step.
Adopting two above-mentioned deforming step to add the required set of molds of heat flow extruding for each implantation piece distortion always is made up of two distortion moulds.
In order to make the distortion mould, at first on 5 miniature milling machines, make graphite body.In order to make the distortion mould, graphite body is corroded in the steel ingot of hardened steel by means of galvanic corrosion.
The such surface that forms of part must manual polishing in a kind of very complicated process in batches in punching press after the distortion mould.
May need one or two workpiece (bar is divided in nearside or distally) are further processed in the zone of implant-abutment connection outer surface.
Workpiece is realized by cutting until the molding that desired net shape may need.This molding relates to the nearside that corresponding construction spare for example is preced with and divides the sectional geometry of bar nearside and be used to provide the distally of artificial root of the tooth to divide the bar distally sectional geometry.
In order to carry out this cutting forming, workpiece is clamped on the work support of a corresponding lathe.Be suitable for workpiece according to workpiece by the precise geometry clamping that adds the heat flow extruding and produce and in working angles, keep for this reason.
For eliminating inaccuracy, each workpiece clamps once in order only to cut.
As the lathe of cutting forming, be suitable for the turning center, can carry out the lathe of the machining step that is necessary above just successively.
In order to reach the net shape of structural member and implant, need both to have used fixed cutting tool (during turning) also to use rotary cutter (during milling) generally speaking.Nearside divides the axial pass-through holes on the bar and is used for holding the axial hole that the bolt that connects two branch bars has a female thread also holes in this process.
Description of drawings
Accompanying drawing be shown specifically the several schemes that are used to comprise seal dental implant embodiment of bar of the present invention and as an embodiment of the seal support of the aid that is used to install two branch bars.Wherein:
Fig. 1 illustrates the axonometric chart that divides bar as the structure of nearside implant;
Fig. 2 illustrates the axonometric chart that divides bar as the distally of distally implant;
Fig. 3 illustrates has the bar view that interconnective distally divides bar and structure to divide bar, and wherein the distally illustrates with dividing the bar partially transparent;
Fig. 4 illustrates the distally and divides bar and structure to divide the axonometric chart of the decomposition of bar;
Fig. 5 illustrates the vertical section of bar;
Fig. 6 illustrates the bar cross section that adopts D-D mark position among Fig. 5;
Fig. 7 illustrates bar and whole ingredients thereof, i.e. nearside and the distally exploded view that divides bar, seal and be used for minute bar is connected into the bolt of bar;
Fig. 8 illustrates the bar vertical section that Fig. 7 installs;
Fig. 9 illustrates the vertical section that bar is divided in the distally;
Figure 10 illustrates the distally and divides bar to rotate another vertical section of 30 ° with respect to Fig. 8;
Figure 11 illustrates the vertical section that nearside divides bar;
Figure 12 illustrates with Fig. 8 similar but do not have the section of seal;
Figure 13 illustrates the distally and divides bar and proximal structure to divide bar and the profile of seal with relevant external a kind of preferred formation of longitudinal axis of bar;
Figure 14 illustrates the stereo appearance figure that distad divides a kind of preferred transition exterior contour of bar from nearside;
Figure 15 illustrates the enlarged detail that divides a kind of embodiment of bar according to the example structure of Fig. 7 and 8 axonometric charts;
Figure 15 illustrates the detail drawing of dimeric dental implant and preferred elastomer sealing member;
Figure 16 a-c illustrates the principle of the contact surface that faces with each other of restriction sealing member maximum compression;
Figure 17 illustrates an elastomeric preferred annular sealing member;
Figure 18 illustrates the enlarged detail of Figure 17;
Figure 19 illustrates the seal that nano coating is arranged according to Figure 17 and 18 topical application;
Figure 20 illustrates and is similar to the seal that Figure 17 and 18 has the concave surface circumferential surface;
Figure 21 is illustrated in nearside and the seal 30 that installs between the bar under the compressive state is divided in the distally;
Figure 22 illustrates a kind of cross section of alternative seal;
Figure 23 is illustrated in nearside and distally and divides and install the alternative seal of Figure 22 under the compressive state between the bar;
Figure 24 illustrates has the alternative seal of nano coating Figure 22;
Figure 25 illustrates the cross section with nano coating and integrated metal spring second alternative seal;
Figure 26 illustrates the alternative seal amplifier section of Figure 25 second;
Figure 27 is illustrated in nearside and distally and divides and install Figure 25 and 26 alternative seals under the compressive state between the bar;
Figure 28 illustrates Figure 25 and 26 and has the alternative seal of nano coating second;
Figure 29 illustrates a kind of alternative embodiment of sealing member;
Figure 30 illustrates the axonometric chart of seal support;
The seal that Figure 31 illustrates seal support in the axonometric chart of Figure 30 holds place's amplifier section;
Figure 32 illustrates the vertical section of Figure 33 seal support;
The seal that Figure 33 illustrates seal support in Figure 32 vertical section holds place's amplifier section;
Figure 34 illustrates the seal support axonometric chart of the seal of packing into;
Figure 35 illustrates the amplifier section of the seal support axonometric chart of the seal of packing among Figure 34;
Figure 36 illustrates pack into the seal support vertical section of seal of Figure 34;
Figure 37 illustrates pack into the seal support vertical section amplifier section of seal of Figure 36;
Figure 38 is illustrated in the seal support that seal is sleeved on Figure 30 to 37 of the seal of packing into when nearside divides on the bar.
The specific embodiment
In the dimeric dental implant in an embodiment, the nearside implantation piece divides bar 10 to form by structure and the distally implantation piece divides bar 20 to form by the distally.
As dividing from structure shown in Figure 1 the axonometric chart of bar 10 sees, this structure divides bar to have vertical section 12, and it has the basic geometry of dividing the distal end 14 tapered tapers of bar 10 to structure.Coning angle is 10 °.In the vertical section 12 of this taper, structure divides bar 10 to have four V-arrangement lobe 16 of total, and their most advanced and sophisticated direction structure divides the distal end 14 of bar 10.Four V-arrangement lobe 16 play the effect of triangle sawtooth and the vertically circumference symmetry and identical being provided with apart from ground that separate each other of section 12 of taper that divides bar 10 around structure.In this manner, form eight direction structures and divide the side 18 of bar 10 distal end 14.
Fig. 2 illustrates the axonometric chart that bar 20 is divided in the distally.This distally divides bar to have vertical hole of opening wide to its proximal end 22, and it has the inwall 24 that has the basic geometry of taper equally.Be embedded in four V-arrangement depressed parts 26 at inwall 24, it has the side 28 that proximal end 24 inclinations of bar 20 are divided in the sensing distally.
If the distally divides bar 20 and proximal structure to divide bar 10 to interconnect (referring to Fig. 3), the relative position of two branch bars both also all the most accurately limited by the side 18 or 28 of closely placing each other on direction of rotation in the axial direction so.Therefore the inclined side 18 of V-arrangement lobe or depressed part or 28 forms the contact surface that faces with each other, described two surfaces that face with each other 32 of contact surface restriction and 34 (referring to Fig. 6 and 7) mutually near and therefore limit the maximum compression of sealing member 30 (Fig. 6 and 7).This point is shown in Figure 12 a to 12c.Particularly Figure 12 c illustrates face 18 and 28 and contact also so form vertical backstop under the state that dental implant installs.
Accurately the center being carried out opposing inclined side 18 or 28 separately by V-arrangement lobe or depressed part when mounted of two branch bars.Structure is being divided bar 10 pack the distally into when dividing in vertical hole of bar 20, the inclined side 18 or 28 of lobe or depressed part is met on an inclined-plane respectively.Structure divide bar 10 therefore continue to insert the distally when dividing in vertical hole of bar 20 until reaching its axial terminal position and the rotation of meanwhile this degree, until all sides 18 respect to one another and 28 mutual even contact.Structure divides bar 10 fricton-tight resistances to force to enter its desired terminal location and can pass through along the longitudinally extending bolt 40 of bar (referring to Fig. 7) fixing subsequently thus.This bolt 40 utilizes the power of 30Ncm to tighten.
Simultaneously the corresponding side surface of using as vertically backstop and antirotation element 18 and 28 sink in an advantageous manner subsequently the distally divide vertical hole of bar 20 inner and in other system be in the zone of implant convex shoulder.Therefore the implant convex shoulder can remain on the identical level.
In the embodiment shown in Fig. 1 to 5, special measure is not shown, divide bar distad to divide the transition of bar so that in the bar exterior contour zone that installs, design fungi-proofingly from proximal structure.
According to embodiment shown in Figure 6, be provided with sealing ring 30 for this purpose, its be arranged on proximal structure divide bar 10 ' the end face 32 in the outside and distally divide bar 20 ' relative end face 34 in the outside between.Under the situation that bar installs, if just proximal structure divide bar 10 ' and the distally divide bar 20 ' occupy its final relative axial position each other, sealing ring 30 is compressed in the vertical.Sealing ring 30 is made up of the plastics of biocompatible.
Fig. 7 illustrates the exploded view that is used for the bar key component of dental implant according to the present invention, and promptly nearside divides bar 10, distally to divide bar 20, is used to seal that the seal 30 of transition between the bar is divided in nearside and distally and the bolt 40 of bar is divided in be used to be spirally connected nearside and distally.
The bar vertical section that is used for dental implant according to the present invention among Fig. 8 is illustrated in all key components under the state of installing and the seal 30 of corresponding compression.
Fig. 9 to 11 illustrates each ingredient vertical section separately.
Figure 12 illustrates side 26 or the 28 such combineds effect that nearside divides lobe 16 on the bar 10 or distally to divide depressed part 26 on the bar 20, make by these sides to the center, and the circumferential surface between the side of obstructed undue bar 10 and 20 is to the center.
Figure 13 be illustrated in structure divide bar 10 ' and the distally divide bar 20 ' between the axonometric chart and the cut-away section zoomed-in view of transition, as can be seen the exterior contour of the bar that installs dividing from structure bar 10 ' distad divide bar 20 ' transition region in do not have wedge, in this wedge, have the danger of the long-term particle-bound bacteria in the inside.
This point structure from Figure 14 divide bar 10 ' and the distally divide bar 20 ' between in the outside drawing of transition equally as can be seen.
Figure 15 illustrates the enlarged detail that proximal structure is divided bar 10 ' axonometric chart.As with referring to figs. 1 through the 6 V-arrangement lobe of having discussed 16, be used for the base 36 of seal 30 as can be seen.
Figure 16 illustrates side 18 and 28 as the contact surface effect on vertically and therefore be responsible for seal 30 level pressure contract (also referring to Figure 12) really.
Figure 17 and 18 illustrate a kind of by the preferred seal of making as the elastomer of FFKM (high fluorubber) 30 ' section.As can be seen, seal 30 ' sealing surface 36 be not the plane, but at seal external margin place along the axial projection of implant and form flange 42 and 44 in this manner.Distortion and thereby produce sealing reliably when these flanges divide bar to tighten in nearside and distally to be connected.
Figure 19 illustrate the seal 30 of Figure 17 with parylene's coating 38 and 18 ', as beginning to introduce.From Figure 18 also as can be seen seal 30 ' the coating edge rounding, peel off in the zone at this edge to prevent coating.
The circumferential surface 50 that Figure 20 illustrates seal can constitute concave surface, thus its near linear ground extension as far as possible owing to the compression that the back seal is installed at the foundation of dental implant bar of the present invention.
Figure 21 illustrates the rounding at seal 30 edges and by the branch bar 10 and 20 on the arrow labeling position.
Figure 22 to 24 illustrates a kind of alternative seal 30 of the O of having shape cast formula elastomer 60 ", elastomer is packed in the annular element 62 of the U-shaped cross-section that inwardly opens wide.
Figure 22 illustrates alternative seal 30 " cross section.Figure 23 is illustrated in nearside and divides bar 10 and distally to divide alternative seal 30 under the installment state between the bar 20 " the amplifier section view.Figure 24 illustrates alternative seal 30 " also can have for example parylene's coating 38.
Figure 25 to 27 is exemplary to illustrate that seal 30 ' " another kind of alternative embodiment, its inside has metal spring 48.Metal spring 48 is in the annular elastoplast body that constitutes 46 and has the U-shaped cross-section that inwardly opens wide.Plastic body is preferably made by PTFE and metal spring 48 is made by rustless steel.As shown in figure 26, plastic body 46 outer surfaces can have for example parylene's coating 38.Plastic body 46 outer surfaces be coated with several nanometer thickness the layer 38, its shown in preferred implementation in contain the titanium microgranule.Layer 38 thickness excessively amplifies in the accompanying drawings and illustrates, so that can see layer.All can have this nano coating on all outer surfaces of seal, and irrelevant with the external shape of seal.
In alternative embodiment, spring also can be made by other elastomeric materials, for example titanium or as the plastics of PEEK.Spring also can have other shapes, if its by seal shown in the dotted line vertically on produce spring action (referring to Figure 25).
Figure 28 illustrates a seal, wherein has for example annular plastics body of PTFE of inwardly unlimited U-shaped cross-section, and it partly utilizes elastomer 64 to fill.
Figure 29 illustrates a seal 30 " " of being made by expandable material, for example inflatable metal or have the plastics of big thermal coefficient of expansion.The seal 30 " " of Figure 29 has the shape of pipeline section.Correspondingly between nearside implant 10 " " and distally implant 20 " ", constitute the gap.
Figure 30 to 38 illustrates a seal support 70, and it divides the instrument on the bar 10 to use as seal 30 being installed in nearside.Has the groove 72 that inwardly opens wide on seal support 70 1 ends, the seal 30 of in groove, can packing into.Seal support 70 preferably after the manufacturing of seal 30, is equipped seal by the manufacturer of seal immediately.Simplification operation that the doctor carried out and health so more.The handle region 74 of outside cutting is convenient to operation in this regard.
Claims (29)
1. a dimeric dental implant comprises distally implantation piece and nearside implantation piece, described implantation piece under the interconnective state the connecting portion place be adjacent to each other at least indirectly and zone at connecting portion in have the surface that faces with each other, wherein,
Between the surface that faces with each other of distally implantation piece and nearside implantation piece, be provided with seal, it has the sealing surface in the face of described surface, described sealing surface is close to the surface that faces with each other of described implantation piece on the final connection status lower seal ground of two implantation pieces, and in addition
Between distally implantation piece and nearside implantation piece, be provided with the contact surface that faces with each other, described contact surface docked and limited described implantation piece mutually under the situation that dental implant installs centre be provided with seal two mutual opposed face near size, thereby described contact surface limits the minimum range on two opposed facing surfaces of described implantation piece, it overlaps by seal
It is characterized in that, described seal to small part is made by elastomeric material, and described seal is arranged between the surface of distally implantation piece and nearside implantation piece in the radial free space, and the elongation diametrically of wherein said seal is greater than the free space between them under described distally implantation piece and the complete interconnective state of nearside implantation piece.
2. dental implant as claimed in claim 1 is characterized in that, described opposed facing surface is transverse to the longitudinal axis of described dental implant and parallel to each other.
3. dental implant as claimed in claim 1 is characterized in that, described opposed facing surface constitutes taper, has identical coning angle and is provided with one heart concentrically with respect to one another and with the longitudinal axis of described dental implant.
4. as each described dental implant in the claim 1 to 3, it is characterized in that described seal is the disc-shape that has center through hole.
5. as each described dental implant in the claim 1 to 3, it is characterized in that, described seal has the end face of concave surface, makes at least the material thickness of measuring on vertically in implant of under the relaxed state described seal in the circumferential edges zone of seal greater than the material thickness in the zone line at seal.
6. as each described dental implant in the claim 1 to 3, it is characterized in that, but the elastomeric material of described seal elastic compression at least 5% on expansion direction.
7. as each described dental implant in the claim 1 to 3, it is characterized in that the elastomeric material of described seal is plastics.
8. dental implant as claimed in claim 7 is characterized in that, described plastics are elastomer, thermoplastic or thermosetting compound.
9. as each described dental implant in the claim 1 to 3, it is characterized in that described sealing member also has hardware or ceramic component except plastics.
10. dental implant as claimed in claim 9 is characterized in that, described hardware or ceramic component are the integrated component of seal.
11. dental implant as claimed in claim 9, it is characterized in that, the outer surface that at least one of described seal forms the implant outer surface is coated with metal level, ceramic layer or plastic layer, and wherein said metal level, ceramic layer or plastic layer prevent the containment member that the antibacterial intrusion is covered by metal level, ceramic layer or plastic layer.
12. dental implant as claimed in claim 11 is characterized in that, described metal level contains titanium, silver and/or gold or plastic layer contains PTFE.
13., it is characterized in that the sealing surface of described at least seal is by elasticity, biocompatible, oral cavity toleration and can make by germ-resistant plastics as each described dental implant in the claim 1 to 3.
14. dental implant as claimed in claim 7 is characterized in that, described plastics have greater than 75*10 in the time of 20 ℃
-6The thermal coefficient of expansion of/K.
15. dental implant as claimed in claim 2, has bar, it is made up of two parts in the vertical and has as the distally of implanting the distally implantation piece in the jawbone and divides bar and divide bar as the proximal structure of nearside implantation piece, divides on the bar in described proximal structure artificial corona can be installed
And wherein said distally divides the proximal end of bar to divide the geometry design of the distal end of bar to become to be fitted to each other with described structure and adjoin each other under the implanting state of bar,
It is characterized in that, vertical hole that the proximal end that described distally is divided bar to have distad to divide bar is opened wide, described vertical sky has inwall, described inwall has the basic geometry of circular cross section, wherein on described inwall, be embedded with the V-arrangement depressed part that divides the proximal end of bar to open wide to described distally, and
The outer wall that described structure divides the distal end of bar to have the basic geometry of circular cross section, it divides vertical hole of bar to match with described distally.
16. dental implant as claimed in claim 15, it is characterized in that, described structure divides the outer wall of bar to have the lobe of V-arrangement in the zone of its distal end, it divides the V-arrangement depressed part of bar to cooperate with described distally, make and divide bar and described structure to divide under the interconnective situation of bar that the side section of V-arrangement depressed part and V-arrangement lobe contacts with each other the ground combined effect and forms the opposed facing contact surface of the compression of restriction sealing member in described distally.
17. as claim 15 or 16 described dental implants, it is characterized in that, described distally divides bar to have four V-arrangement depressed parts, described depressed part is evenly distributed on the circumference of inwall, and described structure divides bar correspondingly to have four V-arrangement lobe, and described lobe is evenly distributed on the circumference of outer wall equally.
18. dental implant as claimed in claim 16 is characterized in that, it is taper in V-arrangement lobe zone that described structure is divided the basic geometry of bar outer wall.
19. dental implant as claimed in claim 18 is characterized in that, it is taper in the zone of V-arrangement depressed part that the basic geometry of vertical hole inwall of bar is divided in described distally.
20. dental implant as claimed in claim 15, it is characterized in that, described seal is arranged on two under the situation that bar installs toward each other and between the end face at the radial outside of bar and play the effect of sealing member, wherein said seal is sized to, make its described distally divide bar and described proximal structure divide under the situation that bar occupies final relative axial position each other bar axially on compression.
21. dental implant as claimed in claim 20 is characterized in that, described seal has the shape of the circular seal ring of rectangle material cross section.
22., it is characterized in that described seal is made by the plastics of biocompatible as claim 20 or 21 described dental implants.
23. dental implant as claimed in claim 15 is characterized in that, described distally divides bar and/or described proximal structure to divide bar to be made by the metal of biocompatible.
24. dental implant as claimed in claim 23 is characterized in that, described metal is titanium or titaniferous alloy.
25. dental implant as claimed in claim 15 is characterized in that, described distally divides bar and/or described proximal structure to divide bar to be made by pottery.
26. dental implant as claimed in claim 25 is characterized in that, described pottery is trimmed or polishes.
27., it is characterized in that described pottery contains ZrO as claim 25 or 26 described dental implants
2, ZrO
2/ Al
2O
3/ Y
2O
3(ATZ), ZrO
2/ Y
2O
3(TZP) or ZrO
2/ Y
2O
3/ Al
2O
3(TZP-A).
28. dental implant as claimed in claim 15 is characterized in that, described distally divides bar and/or described nearside to divide bar to be made of plastics.
29. dental implant as claimed in claim 28 is characterized in that, described plastics contain polyether-ether-ketone (PEEK).
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202005015074.6 | 2005-09-16 | ||
| DE200520015074 DE202005015074U1 (en) | 2005-09-16 | 2005-09-16 | Shank for tooth implant for building artificial tooth crown has distal partial shank exhibiting longitudinal opening for surface shank |
| DE202006007639.5 | 2006-05-09 | ||
| DE202006007639 | 2006-05-09 | ||
| DE202006010431.3 | 2006-06-30 | ||
| DE202006010431U DE202006010431U1 (en) | 2005-09-16 | 2006-06-30 | Two part dental implant for replacement of lost tooth, has sealing body provided for sealing surfaces of distal and proximal implant parts and made from elastic, biocompatible and sterilizable material, where body has two sealing surfaces |
| DE102006040457.2 | 2006-08-25 | ||
| DE102006040457 | 2006-08-25 | ||
| PCT/EP2006/066378 WO2007031562A2 (en) | 2005-09-16 | 2006-09-14 | Two-part dental implant |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110282181.8A Division CN102512252B (en) | 2005-09-16 | 2006-09-14 | Two-part dental implant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101304703A CN101304703A (en) | 2008-11-12 |
| CN101304703B true CN101304703B (en) | 2011-11-09 |
Family
ID=64170021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800409017A Expired - Fee Related CN101304703B (en) | 2005-09-16 | 2006-09-14 | Two-part dental implant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101304703B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2090263A1 (en) * | 2008-02-13 | 2009-08-19 | Straumann Holding AG | Abutment with inlay for dental implants |
| DE102009002947B4 (en) * | 2008-12-12 | 2012-02-02 | Mehrhof Implant Technologies Gmbh | dental implant |
| BE1025778B1 (en) * | 2017-12-13 | 2019-07-10 | Sudimplant | DENTAL IMPLANT |
| CN112826620B (en) * | 2021-01-28 | 2022-02-22 | 广东威力铭科技有限公司 | Multifunctional scanning healing base station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927363A (en) * | 1988-01-04 | 1990-05-22 | Metall- u. Kunststoffwaren Erzeugengsgesellschaft M.B.H. | Dental prosthesis implant |
| CN1062078A (en) * | 1990-09-08 | 1992-06-24 | 艾帕勒医学技术元件有限公司 | Be used for settling securely the jawbone implant of an artificial tooth |
| CN1298288A (en) * | 1998-04-08 | 2001-06-06 | Imz制造和牙齿工艺贸易有限公司 | Intraosseous single-tooth implant |
| CN1428132A (en) * | 2001-12-27 | 2003-07-09 | 爱知制钢株式会社 | Magnetic fastening device for dental prostheses |
-
2006
- 2006-09-14 CN CN2006800409017A patent/CN101304703B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4927363A (en) * | 1988-01-04 | 1990-05-22 | Metall- u. Kunststoffwaren Erzeugengsgesellschaft M.B.H. | Dental prosthesis implant |
| CN1062078A (en) * | 1990-09-08 | 1992-06-24 | 艾帕勒医学技术元件有限公司 | Be used for settling securely the jawbone implant of an artificial tooth |
| CN1298288A (en) * | 1998-04-08 | 2001-06-06 | Imz制造和牙齿工艺贸易有限公司 | Intraosseous single-tooth implant |
| CN1428132A (en) * | 2001-12-27 | 2003-07-09 | 爱知制钢株式会社 | Magnetic fastening device for dental prostheses |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101304703A (en) | 2008-11-12 |
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| C14 | Grant of patent or utility model | ||
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Owner name: MEHRHOF IMPLANT TECHNOLOGIES GMBH Free format text: FORMER OWNER: MEHRHOF JUERGEN Effective date: 20111216 |
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