CN103417309A - Asymmetric dental implant - Google Patents
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- CN103417309A CN103417309A CN2012101572422A CN201210157242A CN103417309A CN 103417309 A CN103417309 A CN 103417309A CN 2012101572422 A CN2012101572422 A CN 2012101572422A CN 201210157242 A CN201210157242 A CN 201210157242A CN 103417309 A CN103417309 A CN 103417309A
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Abstract
The invention discloses an asymmetric dental implant matching with the jawbone section shape. The asymmetric dental implants can be divided into two groups: namely the single type and the multi type according to the number of the designed tooth root implant; two groups: namely the straight type and the bend type according to the need of the position where a dental implant is planted; two groups: namely the single tooth type and multi tooth type according to the number of the designed dental crown; and two groups: namely the coaxial type and the preset deflection angle type according to the including angel between the tooth root and the baseline of the tooth crown; the various types mentioned above can be combined with each other to form various combined types, the asymmetric dental implants are provided with various sizes, so the operator can choose the most suitable type and size of the asymmetric dental implants according to the dissection characteristics of the planted alveolar bone of the patients.
Description
Technical field
The present invention relates to the tooth-planting field, more specifically, relate to a kind of asymmetric tooth implant of applicable jawbone anatomy form.
Background technology
Having healthy and beautiful tooth is one of embodiment of the high-quality healthy living of people, and along with development and the progress of stomatology and each related discipline technology, today, the Dental Implant technology developed into the standard restorative procedure of dentition defect gradually.The tooth implant of main flow is revolving body cylindrical thread or the taper thread endosteal implant around the axis symmetry in the world at present, for strengthening the adhesion of sclerotin and implant surface, mostly adopt the PROCESS FOR TREATMENT of alligatoring implant surface as far as possible, for example with the method for machining, in implant surface, make screw thread, stage, with the high-temperature metal spraying method to form coarse implant surface, adopt blasting method to obtain the concave-convex surface effect, method with chemical erosion improves asperity of implant surface etc., the employing of above-mentioned all processes all is intended to by the modification to implant surface pattern and roughness processing and improves surface bioactive and chew in the interlock activity the formed alternation compressive stress of implantation body with overcoming to bear within the longer time, the alternation moment of flexure, the unfavorable factors such as alternate torque, keep the firm combination between implantation body and host bone bed.But the revolving body tooth implant that this type of is symmetrical, the processing method of every surface modification still exists some shortcomings and deficiencies separately, for example:
1. the longitudinal cross-section of tooth implant can't effectively meet jawbone cheek-tongue direction or the words anatomy form to cross section, and therefore great limitation is arranged when selecting stress and length specification;
2. the cylindrical thread of symmetrical revolving body or taper thread are easily loosening under long-term alternate stress and torsional interaction;
3. the design of the revolving body of the symmetry of non-anatomical form easily causes implantation body to produce interference and the secondary untoward reaction occurs with the adjacent healthy root of the tooth after the implantable bone bed;
Summary of the invention
The asymmetric tooth implant that provides a kind of jawbone section morphology with wanting the implantation position place to match is provided the object of the invention, this asymmetric tooth implant be through to different mankind group tooth body particularly the root form data carry out induction-arrangement, set up the three-dimensional data model of statistical significance, and revised on this basis the asymmetric tooth implant of series that Integration Design becomes to have extensive degree of containing, this asymmetric tooth implant series is divided into single type and Duo Gen type according to designed root of the tooth body quantity, its root of the tooth body is according to the design that straight type and flexure type need to be arranged respectively of implantation position, be divided into single tooth form and polydonita type according to designed corona quantity, angle according to datum line between root and corona is divided into coaxial type and default deflection angle type, aforementioned all kinds can be various combined by mutually being combined to form, asymmetric tooth implant is provided with plurality of specifications and selects optimal asymmetric tooth implant type and specification so that the patient plants tooth alveolar bone place anatomical features according to the patient.Consider the demand of indivedual special cases, also can outside the form of standard series and specification, CT and the MIR data according to indivedual tooth bodies and alveolar bone directly set up this tooth body Model and use the customization of modern manufacture means fast to be applicable to individual dissection and learn the tooth implant of form to satisfy the demand in computer.
For achieving the above object, the present invention takes following design:
A kind of asymmetric tooth implant, is characterized in that this asymmetric tooth implant is comprised of root and abutment portion and hold-down screw.
Further, the root of described asymmetric tooth implant is divided into single type and many types more than two according to designed root of the tooth body number, and its root of the tooth body has the design of straight type and flexure type; When being circle, ellipse, falcate, dumb-bell shape, pyriform, petal, cross, rectangle, polygon and specific (special) requirements, the shape of cross section of the root of the tooth body of described asymmetric tooth implant and multirooted teeth root body joint portion meets the irregular shape that dissect physiology requires.
Further, mutually present the connection form of the part or all of additive fusion of root of the tooth body between each root of the tooth body of the described many asymmetric tooth implants of type during close together, when mutual between each root of the tooth body, be provided with and connect former or dowel between each root of the tooth body when distant.
Described abutment portion as the joining section between root and corona so that root, abutment portion, corona and other complementary function accessories form a Dental Implant integral body as hold-down screw etc.This asymmetric tooth implant is divided into the asymmetric tooth implant of one-part form and the asymmetric tooth implant of two-part by the compound mode of its root and abutment portion.
Further, the asymmetric tooth implant of described one-part form is characterized in that root and abutment portion are the integral type structure.
Further, the asymmetric tooth implant of described two-part is characterized in that root and abutment portion are split-type structural, are interconnected and fixed its root and abutment portion by the screw hole on hold-down screw and root.
Further, described asymmetric tooth implant is characterized in that this implantation body is divided into single tooth form and polydonita type according to set base station number.
Further, the asymmetric tooth implant of described single tooth form is characterized in that in this implantation body only arranging an abutment portion in order to a corona is installed in the future; The compound mode of single tooth form its abutment portion of asymmetric tooth implant and root is one-part form or two-part; The root of the tooth body of asymmetric its root of tooth implant of described single tooth form can be that single type can also be many types.
Further, the asymmetric tooth implant of described polydonita type is characterized in that in this implantation body being provided with plural abutment portion in order to many coronas are installed in the future; The compound mode of its abutment portion of the asymmetric tooth implant of polydonita type and root is one-part form or two-part; Especially, the combination of its a plurality of abutment portion and root can be respectively multi-form, and a certain abutment portion is that one-part form is connected with root, and other abutment portion is that two-part is connected with root; The asymmetric tooth implant of described polydonita type is characterized in that the root of the tooth body of root can be that single type can also be many types.
Further, consider the variation of anatomy angle between corona and root of the tooth, between the root of described asymmetric tooth implant and abutment portion, angle has dividing of straight type and default deflection angle, and described deflection angle is a gradient from 1 °～100 ° every 1 degree.
Described asymmetric tooth implant is further characterized in that at its root and comprises the root of the tooth body, connect former, the surface of dowel etc. and inside are provided with the bone grafting hole, this bone grafting hole is used in the preoperative or the art implantation is autologous or the bone mud of allosome, bone meal and broken osseous granules are beneficial to creeping of postoperative area of new bone cell and grow into, described bone grafting hole be shaped as circle, ellipsoid, oval, curved month type, dumbbell shape, petal, cross, rectangle, meet the irregular shape that dissect physiology requires when polygon and specific (special) requirements, when the quantity in described bone grafting hole UNICOM mutually between each bone grafting hole while being a plurality of, the size range in described bone grafting hole is from 500 μ m～5mm.
Further, described asymmetric tooth implant adopts medical metal to include but not limited to that the materials such as medical stainless steel, titanium and titanium-base alloy, cobalt-base alloys, tantalum metal make, and this class medical metal material has all confirmed through clinical practice for many years the biology performance that it is good.
Further, described its root of asymmetric tooth implant is that the entity metal forms, this root surface is coarse form, this coarse form presents irregular small pit and micro gap, its degree of depth and opening size are between 2 μ m～100 μ m, these pits and gap provide for newborn osteocyte the basis of adhering to and embedding, and area of new bone are connected with the implantation body padlock firmly stable to obtain.
Further, its root core of described asymmetric tooth implant is hollow structure, and this hollow structure can be contained in the part sclerotin that operation retains while preparing the tooth nest or be packed into bone meal, bone mud, broken osseous granules before implantation and be beneficial to the postoperative osteocyte of inducing and inwardly grow into.
Further, its root top layer of described asymmetric tooth implant is coated with hydroxyapatite coating layer.
A kind for the treatment of and the operation process of the asymmetric tooth implant of the present invention are:
1. preoperative inspection, obtain by means such as computed tomography technology CT, tractus pyramidalis CT technology CBCT, nmr imaging technique MRI the three-dimensional data that patient's wish is implanted tooth implant place alveolar bone, the appliance computer Autocad is rebuild Ya He district three-dimensional entity model;
2. carry out preoperative plan, measuring and calculating Zhi Ya district alveolar bone anatomic form and data, select suitable asymmetric tooth implant specifications and models, carry out if possible sham operated and carry out plan-validation in computer;
3. if dental implant surgical still has the tooth of suffering to retain conventional tooth pulling surgery in advance;
4. bore and open alveolar bone cortex, cleared up moulding so that it meets the asymmetric tooth implant specifications and models that will implant with special-purpose standby hole instrument to planting Ya Wodong;
5. standby in the bone grafting hole of the asymmetric tooth implants of implantation such as the autologous bone mud obtained in the time of boring the standby hole of bone while needing before implantation or ready allosome bone meal, bone mud, broken osseous granules;
6. will get and pass through the asymmetric tooth implant of thorough sterilizing ready and implant the tooth nest, impose suitable pressure so that asymmetric tooth implant and tooth nest good contact and chimeric;
7. conventional post surgery treatment is installed corona with nursing preparation in good time.
The root of this asymmetric tooth implant and host's alveolar bone sclerotin close contact laminating after asymmetric tooth implant is implanted, following area of new bone cell will adhere to and grow into pit and the gap of asymmetric dental implant surface is firmly stable to form.
The accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 is the single single tooth embodiment schematic diagram of asymmetric tooth implant one-part form according to the present invention;
Fig. 2 is the single single tooth embodiment schematic diagram of asymmetric tooth implant two-part according to the present invention;
Fig. 3 is according to the asymmetric tooth implant two-part another embodiment of single single tooth of the present invention and generalized section thereof;
Fig. 4 is according to many polydonita embodiment schematic diagrams of asymmetric tooth implant two-part of the present invention;
Fig. 5 is according to the single polydonita embodiment of asymmetric tooth implant one-part form of the present invention schematic diagram;
Fig. 6 is according to the single polydonita embodiment of asymmetric tooth implant two-part of the present invention schematic diagram;
Fig. 7 is according to many single tooth embodiment schematic diagrams of asymmetric tooth implant two-part of the present invention;
Fig. 8 is according to many polydonita embodiment schematic diagrams of asymmetric tooth implant of the present invention;
Fig. 9 is according to the another embodiment schematic diagram of many polydonitas of asymmetric tooth implant of the present invention;
Figure 10 is that asymmetric tooth implant root according to the present invention is hollow structure embodiment generalized section;
Figure 11 is according to asymmetric tooth implant embodiment implanting state schematic diagram of the present invention;
Figure 12 is the rough surface form schematic diagram that asymmetric tooth implant embodiment according to the present invention contacts with sclerotin.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, the asymmetric tooth implant of the present invention shown in Figure 10, by root (1), abutment portion (2) and hold-down screw (3) form, described root (1) is for implanting the Level of Alveolar Bone bed and doing stable in order to obtain following with sclerotin generation synosteosis, described abutment portion (2) is as between root (1) and corona (4), being connected changeover portion so that root (1), abutment portion (2), corona (4) forms an integral body, described hold-down screw (3) is in order to effectively to be connected root (1) with abutment portion (2).
As shown in Figure 1, Figure 2, the asymmetric tooth implant of single type shown in Fig. 3, Fig. 5, Fig. 6, Figure 10, its root (1) is provided with a root of the tooth body (11).
The asymmetric tooth implant of many types as shown in Fig. 4, Fig. 7, Fig. 8, Fig. 9, its root (1) is provided with 2～32 root of the tooth bodies (11), and be the connection form (12) partly or entirely superposeed between each root of the tooth body (11), also can connect by connecting former (13) or dowel (14).
Asymmetric tooth implant as shown in Fig. 1, Fig. 5, Fig. 9 is the asymmetric tooth implant of one-part form, and its root (1) is the integral type structure with abutment portion (2).
Asymmetric tooth implant as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7, Figure 10 is the asymmetric tooth implant of two-part, its root (1) is split-type structural with abutment portion (2), described root (1) and abutment portion (2) are interconnected and fixed root (1) and abutment portion (2) by the screw hole (10) on hold-down screw (3) and root (1), and the diameter of thread of hold-down screw (3) and the screw hole (10) that is mated is 0.5mm to 3mm.
The asymmetric tooth implant of the present invention, its root of the tooth body (11) just like the straight type root of the tooth body (112) of Fig. 4 and as shown in Figure 1, Figure 2, the design of the flexure type root of the tooth body (111) shown in Fig. 3, Fig. 5, Fig. 6 minute, to adapt to the anatomical features of alveolar bone, many asymmetric tooth implants of type as shown in Figure 4, the form of its each root of the tooth body (11) can be single flexure type root of the tooth body (111) or single straight type root of the tooth body (112) form, also can comprise flexure type root of the tooth body (111) and straight type root of the tooth body (112) simultaneously.
As shown in Figure 1, Figure 2, the asymmetric tooth implant of the present invention shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, meet the irregular shape that dissect physiology requires when the shape of cross section of its root of the tooth body (11) and multirooted teeth root body (11) joint portion is circle, ellipse, falcate, dumb-bell shape, pyriform, petal, cross, rectangle, polygon and specific (special) requirements.
The asymmetric tooth implant of the present invention, needs according to equipped corona (4) quantity, be divided into single tooth form and polydonita type, as shown in Figure 1, Figure 2, the asymmetric tooth implant of single tooth form shown in Fig. 3, Fig. 7, Figure 10 is provided with an abutment portion (2), the asymmetric tooth implant of polydonita type as shown in Fig. 4, Fig. 5, Fig. 6, Fig. 8, Fig. 9 is provided with 2～32 abutment portion (2).
Angle between the root of the asymmetric tooth implant of the present invention (1) and abutment portion (2) is designed to straight type or default deflection angle type according to the needs of anatomy angle between corona (4) and root (1), as Fig. 2, Figure 9 shows that the asymmetric tooth implant of straight type, its root (1) and abutment portion (2) axially between angle be 0 °; As Fig. 1, Fig. 3, Figure 7 shows that the default asymmetric tooth implant of deflection angle type, described deflection angle is a gradient from 1 °～100 ° every 1 degree.
As shown in Figure 8, Figure 9, its root of the asymmetric tooth implant of the present invention (1) comprises that surface and the inside of root of the tooth body (11), connection former (13), dowel (14) etc. are provided with bone grafting hole (15), bone grafting hole (15) be shaped as circle, ellipsoid, ellipse, curved month type, dumbbell shape, petal, cross, rectangle, polygon and specific (special) requirements the time meet the irregular shape that dissect physiology requires, when the quantity in described bone grafting hole (15) UNICOM mutually between each bone grafting hole (15) while being a plurality of, the size range in described bone grafting hole is from 500 μ m 5mm.
As shown in Figure 1, Figure 2, shown in Fig. 5, Fig. 8, Fig. 9, the asymmetric tooth implant of the present invention, its root (1) comprises that the surface that root of the tooth body (11), connection former (13), dowel (14) and bone grafting hole (15) etc. contact with sclerotin is coarse form, this coarse form presents irregular pits and micro gap as shown in figure 12, and its degree of depth and opening size are between 2um～100um.
The asymmetric tooth implant of the present invention adopts medical metal to include but not limited to that the materials such as medical stainless steel, titanium and titanium-base alloy, cobalt-base alloys, tantalum metal make, and this class medical metal material has all confirmed through clinical practice for many years the biology performance that it is good and has been widely used in the manufacturing that human body is implanted the class medical apparatus and instruments.
The asymmetric tooth implant of the present invention, described its root of asymmetric tooth implant (1) comprises that root of the tooth body (11), connection former (13), dowel (14) and top layers such as bone grafting hole (15) are coated with hydroxyapatite coating layer.
The machining path of asymmetric tooth implant:
1. generate asymmetric tooth implant physical model in computer;
2. the processor that uses the process equipments such as numerical control machining center, numerically controlled lathe to convert to according to each parts data of asymmetric tooth implant generated in computer carries out machine-shaping to implantation body's blank, and described implantation body blank can obtain by forging or hot investment casting; Can use in addition and be selected the disposable manufactures that complete asymmetric tooth implant of Rapid metallic such as territory sintering or high-power electron beam melting by computer-controlled laser;
3. use the methods such as machine cut, electric discharge processing, blasting treatment, chemical attack, pyrolytic coating to process needed pit and micro gap and bone grafting hole (15);
4. hydroxyapatite coating layer can obtain by pyrolytic coating or electrochemical deposition.
Because above-mentioned processing method has been all that current metal-processing industry is used mature technology for many years, so no longer do more detailed description in this description.
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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (20)
1. an asymmetric tooth implant, is characterized in that, this asymmetric tooth implant is comprised of root (1), abutment portion (2) and hold-down screw (3).
2. asymmetric tooth implant according to claim 1, is characterized in that, this asymmetric tooth implant designs for one-part form, and described root (1) is the integral type structure with abutment portion (2).
3. asymmetric tooth implant according to claim 1, it is characterized in that, this asymmetric tooth implant is two-piece design, described root (1) is split-type structural with abutment portion (2), described root (1) and abutment portion (2) are interconnected and fixed root (1) and abutment portion (2) by the screw hole (10) on hold-down screw (3) and root (1), and the diameter of thread of hold-down screw (3) and the screw hole (10) that is mated is 0.5mm to 3mm.
4. according to claim 1, claim 2 and asymmetric tooth implant claimed in claim 3, it is characterized in that, this asymmetric tooth implant root (1) is provided with a root of the tooth body (11).
5. according to claim 1, claim 2 and asymmetric tooth implant claimed in claim 3, it is characterized in that, this asymmetric tooth implant is many type designs, and described root (1) is provided with 2～32 root of the tooth bodies (11).
6. asymmetric tooth implant according to claim 5, is characterized in that, between each root of the tooth body (11), is the connection form (12) of partial stack or whole stacks.
7. asymmetric tooth implant according to claim 5, is characterized in that, between each root of the tooth body (11), by connecting former (13) or dowel (14), connected.
8. according to the described asymmetric tooth implant of claim 1 to 7 any one, it is characterized in that, when the shape of cross section of described root of the tooth body (11) and multirooted teeth root body (11) joint portion is circle, ellipse, falcate, dumb-bell shape, pyriform, petal, cross, rectangle, polygon and specific (special) requirements, meet the irregular shape that dissect physiology requires.
9. according to the described asymmetric tooth implant of claim 1 to 8 any one, it is characterized in that, described asymmetric tooth implant is provided with an abutment portion (2), is called the asymmetric tooth implant of single tooth form.
10. according to the described asymmetric tooth implant of claim 1 to 8 any one, it is characterized in that, described asymmetric tooth implant is provided with 2～32 abutment portion (2), is called the asymmetric tooth implant of polydonita type.
11. according to the described asymmetric tooth implant of claim 1 to 10 any one, it is characterized in that, described root of the tooth body (11) is designed to flexure type root of the tooth body (111), the form of described flexure type root of the tooth body (111) according to mankind group tooth body particularly the root form data collected, added up, concluded, arranged and obtained adapting to the anatomical features of alveolar bone.
12. according to the described asymmetric tooth implant of claim 1 to 10 any one, it is characterized in that, described root of the tooth body (11) is designed to straight type root of the tooth body (112).
13. according to claim 5,6,7,8,9,10,11, the described asymmetric tooth implant of 12 any one, it is characterized in that, when described asymmetric tooth implant is multirooted teeth root body (11) design, the form of its each root of the tooth body (11) can be single flexure type root of the tooth body (111) or single straight type root of the tooth body (112) form, also can comprise flexure type root of the tooth body (112) and straight type root of the tooth body (112) simultaneously.
14. according to the described asymmetric tooth implant of claim 1 to 13 any one, it is characterized in that, described root (1) and abutment portion (2) axially between angle to be 0 ° be straight type design.
15. according to the described asymmetric tooth implant of claim 1 to 13 any one, it is characterized in that, between described root (1) and abutment portion (2) are axial, angle is default deflection angle type design, and described deflection angle is a gradient from 1 °～100 ° every 1 degree.
16. according to the described asymmetric tooth implant of claim 1 to 15 any one, it is characterized in that, the root of described asymmetric tooth implant (1) comprises root of the tooth body (11), connect former (13), surface and the inside of dowels (14) etc. are provided with bone grafting hole (15), described bone grafting hole (15) be shaped as circle, ellipsoid, oval, curved month type, dumbbell shape, petal, cross, rectangle, meet the irregular shape that dissect physiology requires when polygon and specific (special) requirements, when the quantity in described bone grafting hole (15) UNICOM mutually between each bone grafting hole (15) while being a plurality of, the size range in described bone grafting hole (15) is from 500 μ m～5mm.
17. according to the described asymmetric tooth implant of claim 1 to 16 any one, it is characterized in that, described asymmetric tooth implant adopts medical metal to make, described medical metal comprises medical stainless steel, titanium and titanium-base alloy, cobalt-base alloys, tantalum metal.
18. according to the described asymmetric tooth implant of claim 1 to 17 any one, it is characterized in that, described its root of asymmetric tooth implant (1) forms for the entity metal, this root (1) surface is coarse form, this coarse form presents irregular small pit and micro gap, and described small pit and its degree of depth of micro gap and opening size are between 2 μ m～100 μ m.
19. according to the described asymmetric tooth implant of claim 1 to 18 any one, it is characterized in that, described its root of asymmetric tooth implant (1) core is hollow structure.
20. according to the described asymmetric tooth implant of claim 1 to 19 any one, it is characterized in that, its root top layer of described asymmetric tooth implant all or topical application hydroxyapatite coating layer is arranged.
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| CN2012101572422A CN103417309A (en) | 2012-05-21 | 2012-05-21 | Asymmetric dental implant |
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Cited By (6)
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| CN102715961A (en) * | 2012-07-11 | 2012-10-10 | 唐志辉 | Individualized anatomical type tooth root implant |
| CN104825241A (en) * | 2015-05-27 | 2015-08-12 | 孙冬磊 | Anatomic root-shaped implant, dental prosthesis with same and method for manufacturing dental prosthesis |
| CN106421896A (en) * | 2015-08-04 | 2017-02-22 | 柯石 | Sintering-free nano composite dental crown |
| CN108742901A (en) * | 2018-06-20 | 2018-11-06 | 广州市健齿生物科技有限公司 | A kind of saddle type dental implant |
| CN113274151A (en) * | 2021-05-14 | 2021-08-20 | 中国人民解放军陆军军医大学第二附属医院 | Double-shaft immediate planting oral implant structure |
| WO2022246748A1 (en) * | 2021-05-27 | 2022-12-01 | 何志忠 | Angled locking taper abutment |
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| CN108742901A (en) * | 2018-06-20 | 2018-11-06 | 广州市健齿生物科技有限公司 | A kind of saddle type dental implant |
| CN113274151A (en) * | 2021-05-14 | 2021-08-20 | 中国人民解放军陆军军医大学第二附属医院 | Double-shaft immediate planting oral implant structure |
| WO2022246748A1 (en) * | 2021-05-27 | 2022-12-01 | 何志忠 | Angled locking taper abutment |
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