CN102715961B - Individualized anatomical type tooth root implant - Google Patents
Individualized anatomical type tooth root implant Download PDFInfo
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- CN102715961B CN102715961B CN201210240826.6A CN201210240826A CN102715961B CN 102715961 B CN102715961 B CN 102715961B CN 201210240826 A CN201210240826 A CN 201210240826A CN 102715961 B CN102715961 B CN 102715961B
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- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 4
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Abstract
The invention provides an individualized anatomical type tooth root implant comprising a tooth crown, an implant part used for implanting an alveolar bone and a base station part for connecting the tooth crown and the implant part, wherein the appearance of the implant part is consistent with the anatomical appearance of a physiological tooth root of a sick tooth to be replaced. According to the technical scheme provided by the invention, the individualized anatomical type tooth root implant which aims at a specific physiological structure of a patient is provided and has the implant part having the consistent anatomical appearance with the physiological tooth root, thus the individualized anatomical type tooth root implant can be ensured to form good contact and gomphosis with a tooth crypt when being implanted to the alveolar bone, and the implant is ensured to be fit with a soft and hard tissue interface so as to improve the long-time success rate of the implant. The individualized anatomical type tooth root implant is especially suitable for immediate restoration of aesthetic area anodontia and restoration of severely contracted alveolar bone and meets the characteristics of individualized features of the patient.
Description
Technical field
The present invention relates to stomatology field, in particular to a kind of individuation anatomical form tooth root planting body.
Background technology
Having beautiful healthy tooth is the embodiment that modern pursues high-quality healthy living.From the beginning of the sixties in last century, Sweden professor Branemark has founded the synosteosis theory of Dental Implant and has successfully been applied to so far clinical by the tooth implant of metallic titanium material, and Dental Implant technology achieves the development of advancing by leaps and bounds.Along with development and the progress of stomatology and each related discipline technology, Dental Implant technology today one of main restorative procedure developing into dentition defect gradually.Tooth implant kind has multiple, comprises endosteal implant, subperiosteal implant, Chuan Gu implantation body and endodontic implant etc., and endosteal implant have blade implant, anchor implant and cylinder or coniform implantation body point.According to the result of Clinical practice for many years, the tooth implant of main flow is cylindrical thread or taper thread endosteal implant in the world at present.
But cylindrical thread or taper thread easily loosen under long-term alternate stress and torsional interaction; The straight shape axis designs of non-anatomical form causes implantation body its surface after implantable bone bed very easily to produce with adjacent healthy root of the tooth interfering and occur secondary untoward reaction; The time of usual implantation need be waited for that the healing of anodontia event generation tooth nest bone bed of rear several months is calmed down and just can perform the operation, and the treatment phase is relatively long.
Particularly, Dental Implant is combined closely by metal root of the tooth and alveolar bone and is born masticatory force, successful Dental Implant needs enough alveolar bone bone amount, but, after tooth is pulled out, persistence bone resorption can be there is in teeth socked surrounding socket bone under the effect of osteoclast, cause width and the height reduction of alveolar ridge, the change of these alveolar ridge forms is simultaneously with the forfeiture of the soft tissue that alveolar bone covers, especially for the lip buccal side bone wall in the aesthstic region of labial teeth, once be absorbed, soft tissue subsides thereupon, alveolar bone no longer includes the reconstruction space returning to prototype, patient can be caused to be not suitable for carrying out plantation treatment or having a strong impact on the aesthetic effect that patient plants treatment.Different people's mandibular shapes and quality are different, and after anodontia, the absorption of bone is also different from reconstruction.Therefore, desirable implantation body should be personalized, and in anodontia at once or can to implant in the time short as far as possible and closely sealed with tooth socket, synestotic speed wants fast, effectively to prevent frontal resorption, recovers the function of tooth and attractive in appearance as early as possible.
Summary of the invention
The present invention aims to provide a kind of individuation anatomical form tooth root planting body, easily sends out untoward reaction with the implantation body solving non-anatomical form in prior art, the technical problem that the treatment phase is long.
To achieve these goals, according to an aspect of the present invention, provide a kind of individuation anatomical form tooth root planting body, comprising: corona; Implant portion, for implanting alveolar bone; Abutment portion, connects corona and implant portion; The profile in implant portion is consistent with the dissection profile of the physiology root of the tooth of the trouble tooth that will replace.
Further, implant portion and abutment portion one-body molded.
Further, implant portion and abutment portion are fastenedly connected by connector.
Further, planting body surface is the matsurface with groove and/or pit.
Further, the numerical range of the width of groove is 15 μm to 2000 μm, and the numerical range of the diameter of pit is 15 μm to 2000 μm.
Further, the numerical range of the degree of depth of groove or pit is 15 μm to 2000 μm.
Further, the roughness of matsurface is along the short transverse graded in implant portion or gradual change.
Further, the roughness of matsurface from top to bottom increases along the short transverse in implant portion
Further, implant portion is made up of microcellular structure, and microcellular structure comprises the hole be interconnected.
Further, inside, implant portion is entity, and surface coverage microcellular structure layer, microcellular structure layer comprises the hole be interconnected.
Further, the numerical range of the thickness of microcellular structure layer is 0.25mm to 3mm.
Further, the numerical range in the aperture of hole is 100 μm to 1800 μm.
Further, the aperture of hole is along the short transverse graded in implant portion, and the density of hole is along the short transverse graded in implant portion or gradual change.
Further, the density of hole from top to bottom increases along the short transverse in implant portion.
Further, the inside of microcellular structure is provided with reinforcement structure.
Further, strengthening structure is riser shape, column or netted solid construction.
Further, the position that abutment portion is being combined with implant portion is inwardly shunk, and forms the transfer platform around implant portion.
Further, the width of transfer platform is 0.2mm to 2mm.
Further, the top layer coating hydroxyapatite coating layer in implant portion.
Apply technical scheme of the present invention, a kind of individuation anatomical form tooth root planting body for patient features's physiological structure is provided, there is the implant portion consistent with the dissection profile of physiology root of the tooth, thus can ensure that this individuation anatomical form tooth root planting body can form good contact with chimeric with tooth nest when implanting alveolar bone; Ensure that coincideing, to improve the long term success of implantation body of implantation body and hard and soft tissue interface; Especially be applicable to the Immediate prosthesis of aesthstic district anodontia and the reparation of severe atrophy alveolar bone, meet the feature of patient personalized feature.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the exploded view of the one-part form structure of individuation anatomical form tooth root planting body first embodiment of the present invention;
Fig. 2 shows the two-part STRUCTURE DECOMPOSITION figure of individuation anatomical form tooth root planting body second embodiment of the present invention;
Fig. 3 shows the exploded view of another embodiment room of one-part form structure of individuation anatomical form tooth root planting body first embodiment of the present invention;
The transfer platform that Fig. 4 shows individuation anatomical form tooth root planting body of the present invention implants generalized section;
Fig. 5 shows the generalized section of individuation anatomical form tooth root planting body of the present invention;
Fig. 6 shows the lamellar reinforcement structural representation in implant portion of individuation anatomical form tooth root planting body of the present invention;
Fig. 7 shows the implant portion columnar strengthening formation schematic diagram of individuation anatomical form tooth root planting body of the present invention;
Fig. 8 shows the implant portion mesh reinforcements schematic diagram of individuation anatomical form tooth root planting body of the present invention;
Fig. 9 shows the microcellular structure schematic diagram of individuation anatomical form tooth root planting body of the present invention;
Figure 10 shows the schematic diagram of another embodiment of microcellular structure of individuation anatomical form tooth root planting body of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
See Fig. 1 to Fig. 3, individuation anatomical form tooth root planting body of the present invention, be made up of with abutment portion 2 implant portion 1, implant portion 1 is for implanting Level of Alveolar Bone bed and to produce bone fusion with sclerotin stable to obtain following, and abutment portion 2 is connected to form a Dental Implant entirety as the bridge joint changeover portion between implant portion 1 and corona 3 to make implant portion 1, abutment portion 2, corona 3 and other complementary function accessories.
The implant portion 1 of individuation anatomical form tooth root planting body of the present invention is according to CT, CBCT, the equipment such as MRI obtain the tooth to be pulled out of patient or the root of the tooth of missing tooth, plant the 3 d scan data of tooth nest and jawbone anatomical structure, three-dimensional modeling is carried out by computer software, design and meet patient anatomy's feature, the Dental Implant of the bionical shape of the personalization of occluding relation, applied metal rapid shaping technique is electron beam melting forming technique (Electron Beam Melting such as, or Selective Laser Sintering (Selected Laser Sintering EBM), SLS) rapid processing becomes the point-device Dental Implant of physical dimension under the control of the computer.The implant portion 1 of implantation body of the present invention with will pull out alternative physiology suffer from the geometric shape of sound of baby talk root and overall dimensions consistent, thus can ensure that this individuation anatomical form tooth root planting body can form good contact with chimeric with tooth nest when implanting alveolar bone.
Two embodiments of individuation anatomical form tooth root planting body of the present invention are shown in Fig. 1, Fig. 3 and Fig. 2 respectively, are divided into one-part form individuation anatomical form tooth root planting body and two-part individuation anatomical form tooth root planting body by its implant portion 1 with the compound mode of abutment portion 2.Its implant portion 1 of one-part form individuation anatomical form tooth root planting body is as shown in Figures 1 and 3 integral type structure with abutment portion 2.Two-part individuation anatomical form tooth root planting body as shown in Figure 2, its implant portion 1 is split-type structural with abutment portion 2, implant portion 1 is interconnected and fixed with abutment portion 2 by the screw hole 10 on hold-down screw 4 and implant portion 1 with abutment portion 2 by described implant portion 1, and hold-down screw 4 and the diameter of thread of screw hole be mated are 0.5mm to 3mm.
The present invention is provided with anatomical form base station to increase the stability of following corona in corona bond regions.In art, implantation body being planted tooth nest can corona reparation at once, or healing corona reparation after 2-3 month.The present invention comprises cylindricality, irregular dissection shape, Duo Gen shape implantation body according to the alveolar bone form Design processing root shape in Zhi Ya district, except the reparation of the sufficient agomphosis patient of applicable bone amount, especially the Immediate prosthesis of aesthstic district anodontia and the reparation of severe atrophy alveolar bone is applicable to, meet the feature of patient personalized feature, ensure that coincideing, to improve the long term success of implantation body of implantation body and hard and soft tissue interface.
As the first kind of way promoting osteogenesis, individuation anatomical form tooth root planting body of the present invention carries out different process to the surface of Dental Implant different parts, the roughness of irregular micron order graded is formed in synosteosis district, increase the surface area of implantation body, promote attaching and the growth of osteocyte; Soft tissue land is then carried out polishing and is prevented bacterial plaque from adhering to.In these cases, the roughness of matsurface from top to bottom increases along the short transverse of implantation body.
Preferably, its implant portion 1 of individuation anatomical form tooth root planting body of the present invention is solid metal formation, its surface contacted with sclerotin is matsurface 11, and described minute groove and pit contribute to the initial bond strength between the implant portion 1 of enhancing individuation anatomical form tooth root planting body and tooth nest and improve the shear strength at interface between implant portion 1 and sclerotin.
As shown in Figures 2 and 3, the body surface of planting that individuation anatomical form tooth root planting body of the present invention contacts with sclerotin is matsurface 11, this matsurface 11 presents rule or irregular dispersion minute groove and pit, this minute groove and pit, its width or diameter are 15 μm to 2000 μm, and its degree of depth is 15 μm to 2000 μm.
Preferably, individuation anatomical form tooth root planting body of the present invention, the matsurface 11 on its surface, implant portion 1 needs according to the sclerotin that surface, implant portion 1 contacts and is designed to different roughness, different in width or diameter, and the gradient matsurface of different depth, can be graded or gradual change.The density of such as hole from top to bottom increases along the short transverse of described implantation body, to adapt to the different requirements of synosteosis district and soft tissue land.
Preferably, individuation anatomical form tooth root planting body of the present invention adopts medical metal to comprise medical stainless steel, titanium and the material such as titanium-base alloy, cobalt-base alloys and makes, and this kind of medical metal material has all confirmed its good biology performance through clinical practice for many years and has been widely used in the manufacturing that human body implants class medical apparatus and instruments.
Promote the second way of osteogenesis, as shown in Figure 1, Figure 4, Figure 5, implant portion 1 all the other entire bodies except the screw hole 10 that middle part is arranged of individuation anatomical form tooth root planting body of the present invention are that microcellular structure 5 is formed, this microcellular structure 5 builds by comprising multiple micropore superposition connection be interconnected, and the aperture of described microcellular structure 5 hole is 100 μm to 1800 μm.
Preferably, as shown in Fig. 6, Fig. 7, Fig. 8, the inside of the microcellular structure in its implant portion 1 of individuation anatomical form tooth root planting body of the present invention is provided with reinforcement structure, this reinforcement structure is the solid construction of the shape such as netted shown in the column shown in lamellar, the Fig. 7 shown in Fig. 6 or Fig. 8, and this reinforcement structure distribution is in the inside of microcellular structure or surface and provide additional intensity to improve the ability that tension and compression, shearing, torque load bear in implant portion 1.
The another kind of mode promoting osteogenesis, individuation anatomical form tooth root planting body of the present invention, its implant portion 1 is inner is solid metal formation, and this surface, implant portion 1 is microcellular structure 5.The structure chart of microcellular structure 5 has been shown in Fig. 9 and Figure 10, this microcellular structure is that the multidirectional micropore superposition comprising multiple micropore be interconnected connects the structure sheaf built, the aperture of the hole of this microcellular structure layer is 100 μm to 1800 μm, and the thickness of described microcellular structure layer is 0.25mm to 3mm.
Preferably, individuation anatomical form tooth root planting body of the present invention, the microcellular structure 5 on its surface, implant portion 1 needs according to the sclerotin that surface, implant portion 1 contacts and is designed to the gradient pore structured layer of different porosities different pore size, can be graded or gradual change.
Preferably, its implant portion 1 of individuation anatomical form tooth root planting body of the present invention is the demarcation line that individuation anatomical form tooth root planting body passes alveolar bone with the boundary line of abutment portion 2, reserve one in this demarcation line place abutment portion 2 and be also called transfer platform 12 by being rapidly to interior contraction around the adduction platform in implant portion 1, the width of described transfer platform 12 is 0.2mm to 2mm, when junctional epithelium after the implanted alveolar bone of described individuation anatomical form tooth root planting body and gingival connective tissue can grow along transfer platform 12 toe-in and get up to avoid the intrusion of microorganism by the gap plugging between tooth root planting body and alveolar bone.
Preferably, described its top layer, implant portion 1 of individuation anatomical form tooth root planting body is coated with hydroxyapatite coating layer.
A kind of operation process of individuation anatomical form tooth root planting body of the present invention is:
1, CT, CBCT is clapped to being worth trouble tooth to be pulled out without reserve, root of the tooth three-dimensional data is obtained according to CT, CBCT number, by computer aided design software design anatomical form root of the tooth, base station and crown anatomy, adopt the technology quick Fabrication titaniums such as EBM, LBM, CAM or full porcelain anatomical form tooth root planting body, implant surfaces has rough surface or modification.
2, conventional tooth pulling surgery is gone.
3, tooth nest is cleared up.
4, will to get ready in advance and individuation anatomical form tooth root planting body through thorough sterilizing implants tooth nest, impose suitable pressure to make individuation anatomical form tooth root planting body and tooth nest good contact with chimeric.
5, the implantation body of repairing with temporary crown or permanent hat and adjacent teeth are fixed, conventional post surgery treatment and nursing.
6, individuation anatomical form tooth root planting body implanted after the implant portion surface microporous structure of this individuation anatomical form tooth root planting body and host's alveolar bone sclerotin close contact fit, the microcellular structure of individuation anatomical form tooth root planting surface of growing into is formed good Bony union by following osteocyte.
The processing method of individuation anatomical form tooth root planting body of the present invention has two comparatively ideal machining paths:
A, the processor adopting numerical control machine tool to convert to according to each parts data of individuation anatomical form tooth root planting body generated in a computer carry out machine-shaping, then use the processing of the method such as spark machined, chemical attack, blasting treatment, machine cut to bore to mill out required rule or irregular dispersion minute groove and pit, base station, hold-down screw and screw hole then adopt the conventional machining method such as turning or milling to make;
B, utilize the rapid shaping technique melt moldings such as laser sintered or high-power electron beam melting, concrete grammar is as follows:
A) obtained the tomographic data of the trouble tooth that patient will be replaced by CT or MRI scanning, and set up the threedimensional model of suffering from sound of baby talk root according to tomographic data is reverse.
B) the individuation anatomical form tooth root planting body component three-dimensional data model of professional software to design-build is in a computer used to carry out layering, to obtain the outline data of a series of monolayer slices;
C) to laser or the above-mentioned serial synusia data of high-power electron beam rapid forming equipment input;
D) in laser or high-power electron beam rapid forming equipment processing cabin, the medical metal powder with floor height respective thickness when aforementioned three-dimensional data model layering is laid;
E) by computer controlled controlling laser beam or high-power electron beam, scanning is carried out and selectively fusing to medical metal powder;
F) repeat aforementioned laying powder, scanning fusing step is selected the mutual clinkering of material of fusing integrally to make each layer;
G) powder removing non-melting after completing the melting process of whole aspect can obtain the individuation anatomical form tooth root planting body component of required shape and structure;
H) due to when building individuation anatomical form tooth root planting body component three-dimensional data model by required entity, screw hole, micropore etc. structure designs in the data file in the lump, therefore above-mentioned various structure completes manufacture by disposable in laser sintered or high-power electron beam melting process;
I) hydroxyapatite coating layer obtains by pyrolytic coating or electrochemical deposition.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. an individuation anatomical form tooth root planting body, comprising:
Corona (3);
Implant portion (1), for implanting alveolar bone, described implant portion (1) is made up of microcellular structure (5), described microcellular structure (5) comprises the hole be interconnected, the aperture of described hole is along the short transverse graded of described implant portion (1), and the density of described hole is along the short transverse graded of described implant portion (1) or gradual change;
Abutment portion (2), connects described corona (3) and described implant portion (1);
It is characterized in that, the profile of described implant portion (1) is consistent with the dissection profile of the physiology root of the tooth of the trouble tooth that will replace.
2. individuation anatomical form tooth root planting body according to claim 1, is characterized in that, described implant portion (1) is one-body molded with described abutment portion (2).
3. individuation anatomical form tooth root planting body according to claim 1, is characterized in that, described implant portion (1) and described abutment portion (2) are fastenedly connected by connector.
4. individuation anatomical form tooth root planting body according to claim 1, is characterized in that, described implant portion (1) inside is entity, and surface coverage microcellular structure layer, described microcellular structure layer comprises the hole be interconnected.
5. individuation anatomical form tooth root planting body according to claim 4, it is characterized in that, the numerical range of the thickness of described microcellular structure layer is 0.25mm to 3mm.
6. the individuation anatomical form tooth root planting body according to claim 1 or 4, is characterized in that, the numerical range in the aperture of described hole is 100 μm to 1800 μm.
7. individuation anatomical form tooth root planting body according to claim 1, is characterized in that, the density of described hole from top to bottom increases along the short transverse of described implant portion (1).
8. individuation anatomical form tooth root planting body according to claim 1, it is characterized in that, the inside of described microcellular structure arranges reinforcement structure.
9. individuation anatomical form tooth root planting body according to claim 8, is characterized in that, described reinforcement structure is riser shape, column or netted solid construction.
10. individuation anatomical form tooth root planting body according to claim 1, it is characterized in that, the position that described abutment portion (2) is combining with described implant portion (1) is inwardly shunk, and forms the transfer platform (12) around described implant portion.
11. individuation anatomical form tooth root planting bodies according to claim 10, it is characterized in that, the width of described transfer platform (12) is 0.2mm to 2mm.
12. individuation anatomical form tooth root planting bodies according to claim 1, is characterized in that, the top layer coating hydroxyapatite coating layer of described implant portion (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240826.6A CN102715961B (en) | 2012-07-11 | 2012-07-11 | Individualized anatomical type tooth root implant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240826.6A CN102715961B (en) | 2012-07-11 | 2012-07-11 | Individualized anatomical type tooth root implant |
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| Publication Number | Publication Date |
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| CN102715961A CN102715961A (en) | 2012-10-10 |
| CN102715961B true CN102715961B (en) | 2015-02-04 |
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| CN201210240826.6A Active CN102715961B (en) | 2012-07-11 | 2012-07-11 | Individualized anatomical type tooth root implant |
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| CN104825241B (en) * | 2015-05-27 | 2018-02-16 | 孙冬磊 | Anatomical root shape planting body and with its dental case, dental case manufacture method |
| CN104840265A (en) * | 2015-06-11 | 2015-08-19 | 大连大学 | Integrated implant capable of immediately loading |
| CN105787177B (en) * | 2016-02-26 | 2018-12-28 | 北京朗视仪器有限公司 | The computer-implemented method of one-part form anatomical root shape dental implant |
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