CN114712002A - Immediate implant and oral implant for old people - Google Patents

Abstract

The application relates to the technical field of dental implantation, in particular to an immediate implant and an elderly oral implant. The instant implant comprises an implant head and an implant neck which are connected, wherein the implant head is a conical body, the outer diameter of the implant head is gradually increased from one end far away from the implant neck to one end close to the implant neck, and the implant head sequentially comprises a self-tapping type thread section, a transition section and a dense thread section; the dense thread section is connected with the neck of the implant; built-in threads are arranged between every two adjacent threads of the self-tapping thread section; the thread depth of the self-tapping thread section is greater than that of the built-in thread; a chip groove is arranged on the head part of the implant; a tip is arranged at one end of the self-tapping screw thread section, which is far away from the transition section; the side wall of the neck of the implant is provided with an inner inclined platform. The implant can be fully beneficial to the implantation of the residual bone mass, the sufficient initial stability is obtained, the immediate implantation can be realized, the load is immediately born, the oral cavity function is immediately recovered, the life quality is improved, and the treatment time is shortened.

Description

Immediate implant and oral implant for old people

Technical Field

The application relates to the technical field of dental implantation, in particular to an immediate implant and an oral implant for the elderly.

Background

At present, China's society is seriously aged, and more old people select implant teeth which are comfortable, beautiful and high in chewing efficiency to repair lost teeth because of poor chewing efficiency, large foreign body sensation, high requirement on bone mass and trouble in taking, wearing and cleaning of the removable dentures. However, the old often has the problems of osteoporosis, insufficient alveolar bone mass and the like, and great challenges are brought to the planting operation.

Planting is divided into conventional planting and instant planting. The conventional planting is to implant the implant 3-6 months after tooth extraction, so that the treatment period is long and the operation times are more; the implant is immediately implanted on the surface of the fresh tooth extraction wound after the tooth extraction, the implant supporting and fixing crown bridge repair is completed in one day, the facial beauty and the oral chewing function of a patient are recovered in the shortest time, the treatment period is shortened, and the operation times are reduced. The old people have high tooth loss rate, often are edentulous patients, are mostly serious alveolar bone atrophy patients, have poor retention of false teeth, high planting difficulty and great influence on living quality, so most of the patients hope to reduce the number of times of coming calls and repair lost teeth as soon as possible to recover the chewing function.

Disclosure of Invention

In view of the above disadvantages of the prior art, the present application is directed to an immediate implant and an oral implant for elderly people, which solve the problems of the prior art.

In order to achieve the above and other related objects, the present application provides, in one aspect, an immediate implant comprising a connected implant head and an implant neck, the implant head being a conical body, the implant head having an outer diameter gradually increasing from an end away from the implant neck to an end close to the implant neck, the implant head comprising a self-tapping thread section, a transition section, and a dense thread section in this order; the dense thread section is connected with the neck of the implant; built-in threads are arranged between every two adjacent threads of the self-tapping thread section; the thread depth of the self-tapping thread section is greater than that of the built-in thread; a chip groove is formed in the head of the implant; a tip is arranged at one end of the self-tapping screw thread section, which is far away from the transition section; the side wall of the neck of the implant is provided with an inner inclined platform.

In some embodiments of the present application, the thread depth of the self-tapping thread section decreases from the end distal to the transition section to the end proximal to the transition section.

In some embodiments of the present application, the self-tapping thread segments comprise a single self-tapping thread segment and a double self-tapping thread segment; the double self-tapping thread section is connected with the transition section; the internal threads include single and double set threads.

In some embodiments of the present application, the single set threads are disposed between adjacent threads of the single self-tapping thread segment; the double set threads are arranged between adjacent threads of the double self-tapping thread sections.

In some embodiments of the present application, the thread depth of the single self-tapping thread segment is greater than the thread depth of the single set thread.

In some embodiments of the present application, the thread depth of the double self-tapping thread segment is greater than the thread depth of the double set thread.

In some embodiments of the present application, the thread depth of the self-tapping thread section is greater than the thread depth of the transition section.

In some embodiments of the present application, the thread thickness of the self-tapping thread section is greater than the thread thickness of the transition section.

In some embodiments of the present application, the self-tapping thread section has a pitch that is greater than a pitch of the transition section.

In some embodiments of the present application, the transition section has a thread depth that is greater than a thread depth of the tight thread section.

In some embodiments of the present application, the transition section has a thread thickness that is greater than a thread thickness of the tight thread section.

In some embodiments of the present application, the transition section has a pitch that is greater than a pitch of the tight thread section.

In some embodiments of the present application, the surface of the self-tapping thread segments is a rough surface.

In some embodiments of the present application, the surface of the transition section is a rough surface.

In some embodiments of the present application, the surface of the implant neck is a smooth surface; the surface of the neck of the implant is provided with a coating.

In some embodiments of the present application, the flutes extend in an axial direction of the implant head; the depth of the chip groove is 1.2-3.0 mm; the width is 0.3 to 3.0 mm.

In some embodiments of the present application, the implant head is a solid structure.

In some embodiments of the present application, the working surface of each thread in the self-tapping thread segment is at an angle α, 10 ° α 30 ° with respect to its radial direction along the implant head.

In some embodiments of the present application, a thread extension direction of the built-in thread coincides with a thread extension direction of the self-tapping thread section.

In some embodiments of the present application, the angle between the working surface of each thread in the transition section and its radial direction along the implant head is β, 5 ° ≦ β ≦ 20 °.

In some embodiments of the present application, the angle between the working surface of each thread in the dense-thread segments and the direction of the cone line of the implant head is δ, 0 ° ≦ δ ≦ 5 °.

In some embodiments of the present application, the thread depth ratio of the self-tapping thread section to the built-in thread is 12 to 15: 3 to 6.

In some embodiments of the present application, the ratio of the thread pitch of the self-tapping thread section to the thread pitch of the transition section is 12 to 15: 7 to 12.

In some embodiments of the present application, the thread depth ratio of the self-tapping thread section to the transition section is 12 to 15: 7 to 12.

In some embodiments of the present application, the ratio of the length of the self-tapping screw thread section to the length of the transition section is 3 to 8: 2 to 5.

In some embodiments of the application, the pitch ratio of the transition section to the dense-thread section is 7-12: 3 to 5.

In some embodiments of the present application, the thread depth ratio of the transition section to the tight thread section is 7-12: 3 to 5.

In some embodiments of the present application, the transition section and the dense thread section have a length ratio of 2:1 to 5: 3.

In some embodiments of the present application, the implant head has an aspect ratio of 5.5-13: 3-5.

In some embodiments of the present application, the length of the implant head is 5.5mm to 13 mm.

In some embodiments of the present application, the length of the neck of the implant is 0.5 to 3 mm.

In some embodiments of the present application, the length of the internally inclined platform is 0.5 to 1 mm.

Another aspect of the present application provides an oral implant for elderly people, comprising an immediate implant as described in the present application, and further comprising an abutment connected to the immediate implant.

Drawings

Fig. 1 is a schematic structural view of the instant implant of the present application.

Element numbers in the figures of the present application:

1 implant head

11 self-tapping screw thread section

111 single self-tapping thread segment

112 double self-tapping thread section

12 built-in screw thread

121 single set screw

122 double thread

13 transition section

14-thread dense section

15 tip

2 implant neck

3 chip groove

Detailed Description

In the description of the present application, it should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present application are only used for matching the disclosure of the present application, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present application can be implemented, so that the present application has no technical essence, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should still fall within the scope that the technical contents disclosed in the present application can be covered without affecting the efficacy and the achievable purpose of the present application. While the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, in one aspect, the embodiment of the present application provides an immediate implant, which includes a connected implant head 1 and an implant neck 2, wherein the implant head 1 is a conical body, an outer diameter of the implant head 1 gradually increases from an end away from the implant neck 2 to an end close to the implant neck 2, and the implant head 1 sequentially includes a self-tapping screw thread section 11, a transition section 13 and a dense screw thread section 14; the dense thread section 14 is connected with the implant neck 2; built-in threads 12 are respectively arranged between every two adjacent threads of the self-tapping thread section 11; the thread depth of the self-tapping thread section 11 is greater than that of the built-in thread 12; a chip groove 3 is arranged on the head 1 of the implant; a tip 15 is arranged at one end of the self-tapping screw thread section 11 far away from the transition section 13; typically, no threads are provided at the tip 15. The side wall of the implant neck 2 is provided with an inner inclined platform 21. The immediate implant is a novel immediate load implant for immediate implantation and a special implant for the old, can fully benefit the implantation of the residual bone mass into the implant, obtains sufficient initial stability, can realize immediate implantation, can immediately bear load, can immediately recover the function of the oral cavity, improves the life quality and shortens the treatment time.

Wherein, this application self tapping formula screw thread section 11 (for example can be for V type screw thread), be convenient for cut and snatch when implanting, do benefit to quick implantation to can effectively reduce the friction heat production, avoid bone burn and osteonecrosis, reduce the planting failure rate. The transition section 13 (for example, a U-shaped gradually-changed double-thread) is beneficial to expanding and pressing cancellous bone when the implant is implanted, so that the initial stability of the implant is increased, and good initial stability is obtained. The dense thread section (for example, an annular closed linear thread) is beneficial to increasing the close contact of the upper bone, is beneficial to the long-term stability of the neck bone and avoids the absorption of the neck bone. Set up built-in screw thread 12 between self tapping formula screw thread section 11's screw thread, built-in screw thread 12 (for example can be for little V screw thread), reinforcing implant cutting force and self tapping do benefit to quick implantation to can effectively reduce the friction heat production, avoid bone burn and osteonecrosis, reduce the planting failure rate, and effectively increase the implant surface area, increase bone implant contact area. The tip 15 of the implant head 1 is cutting capable. The inner inclined platform 21 can increase the effect of transferring the implant platform, increase the thickness of bone tissue in the platform area and the closure of neck soft tissue, is beneficial to long-term stability of the neck bone and the soft tissue, and ensures the long-term success rate of the implant.

In the immediate implant provided by the embodiments of the present application, the immediate implant material is grade five titanium. The head 1 of the implant is of a solid structure.

The instant implant provided by the embodiments of the present application has a thread depth of the self-tapping thread section 11 gradually decreasing from the end far from the transition section 13 to the end near the transition section 13. The thread depth refers to the thread height of each thread in the self-tapping thread section 11. In one embodiment, the thread depth of the self-tapping thread section 11 is 1.2-1.5 mm; 1.2-1.3 mm; 1.3-1.4 mm; or 1.4 to 1.5 mm.

The embodiment of the application provides an immediate implant, wherein the built-in threads 12 are arranged between adjacent threads of the self-tapping thread section 11, and the thread depth of the built-in threads 12 refers to the thread height of the threads of the built-in threads 12. In one embodiment, the thread depth ratio of the self-tapping thread section 11 to the built-in thread 12 is 12-15: 3 to 6. Specifically, the thread depth of the built-in thread 12 is 0.3-0.6 mm; 0.3-0.4 mm; 0.4-0.5 mm; or 0.5-0.6mm, etc.

In the immediate implant provided by embodiments of the present application, the self-tapping thread segment 11 comprises a single self-tapping thread segment 111 and a double self-tapping thread segment 112; the double self-tapping thread section 112 is connected with the transition section 13; the internal threads 12 include single set threads 121 and double set threads 122.

In one embodiment, the single set threads 121 are disposed between adjacent threads of the single self-tapping thread segment 111. The double set threads 122 are disposed between adjacent threads of the double self-tapping thread segment 112. The thread depth of the single self-tapping thread segment 111 is greater than the thread depth of the single set thread 121. The thread depth of the double self-tapping thread segment 112 is greater than the thread depth of the double set threads 122. Wherein the aforementioned thread depth refers to the thread height of each thread in the respective section.

In the immediate implant provided by the embodiment of the application, the thread depth of the self-tapping thread section 11 is greater than that of the transition section 13; the thread depth of the transition section 13 is greater than the thread depth of the tight thread section 14. Thread depth refers to the thread height of each thread in the respective section. The design ensures that the implant has a certain extrusion effect on cancellous bone in the implantation process, obtains ideal initial stability and is beneficial to vascularization bone formation. The thread depth ratio of the self-tapping thread section 11 to the transition section 13 is 12-15: 7 to 12. The thread depth ratio of the transition section 13 to the dense thread section 14 is 7-12: 3 to 5. In one embodiment, the thread depth of the self-tapping thread section 11 is 1.2 to 1.5 mm; 1.2-1.3 mm; 1.3-1.4 mm; or 1.4 to 1.5 mm. The thread depth of the transition section 13 is 0.7-1.2 mm; 0.7-1.0 mm; or 1.0 to 1.2 mm. More specifically, the thread depth of the transition section 13 is, for example, 1.2 to 0.7mm in order from the end near the dense thread section 14 to the end near the self-tapping thread section 11. The thread depth of the dense thread section 14 is 0.3-0.5 mm; 0.3-0.4 mm; or 0.4 to 0.5 mm.

Further, the thread thickness of the self-tapping thread section 11 is greater than the thread thickness of the transition section 13; the thread thickness of the transition section 13 is greater than the thread thickness of the tight thread section 14. The thread thickness refers to the thickness of each thread outer side surface of each thread in the axial direction of the implant head 1 in each of the self-tapping thread section 11, the transition section 13, or the dense thread section 14. The design enables the thread to have self-tapping and cutting functions, facilitates the implantation of the implant and reduces heat generated by friction. The thread thickness of the self-tapping thread section 11 is 0.7-1.5mm and the like. The thread thickness of the transition section 13 is 0.5-1.0mm and the like. The thread thickness of the dense thread section 14 is 0.3-1mm and the like.

Further, the thread pitch of the self-tapping thread section 11 is larger than that of the transition section 13; the pitch of the transition section 13 is greater than the pitch of the thread tightening section 14. The pitch refers to the spacing between adjacent 2 threads in the axial direction of the implant head 1. The thread pitch proportion of the self-tapping thread section 11 and the transition section 13 is 12-15: 7 to 12. The screw pitch ratio of the transition section 13 to the dense-thread section 14 is 7-12: 3 to 5. The design ensures that the implant has a certain extrusion effect on cancellous bone in the implantation process, obtains ideal initial stability and is beneficial to vascularization bone formation. The thread pitch of the self-tapping thread section 11 is 1.2-1.5 mm; 1.2-1.3 mm; 1.3-1.4 mm; or 1.4 to 1.5 mm. The screw pitch of the transition section 13 is 0.7-1.2 mm; 0.7-1.0 mm; or 1.0 to 1.2 mm. More specifically, the pitch of the transition section 13 is, for example, 1.2 to 0.7mm in order from the end near the dense-thread section 14 to the end near the self-tapping thread section 11. The thread pitch of the dense thread section 14 is 0.3-0.5 mm; 0.3-0.4 mm; or 0.4 to 0.5 mm.

The depth, thickness and pitch of the self-tapping screw thread section 11 are greater than those of the transition section 13. The pile type transition from cutting screw thread to double-thread screw thread is facilitated, the stability and controllability of the implant are improved, the implant is facilitated, and the initial stability is improved through bone extrusion.

The depth, thickness and pitch of the thread of the aforementioned transition section 13 are greater than the depth, thickness and pitch of the thread of the tight thread section 14. The device is convenient for the heap-shaped transition from the U-shaped thread section to the linear fine thread section, increases the stability and controllability of the implant implantation, obtains good initial stability and close contact of the upper section, is beneficial to contact osteogenesis, and increases the integration success rate of the implant bone.

Further, the length proportion of the self-tapping screw thread section 11 to the transition section 13 is 3-8: 2 to 5. The length ratio of the transition section 13 to the dense thread section 14 is 2:1-5: 3. Said length refers to the length of the thread segment in the axial direction of the implant head 1. The design facilitates the implantation of the implant and the extrusion of the alveolar bone, is favorable for obtaining the initial stability of the dental implant, reduces heat production, and greatly improves the success rate of implant restoration. The length of the self-tapping thread section 11 is 3-8 mm; the length of the transition section 13 is 2-5 mm; the length of the dense thread section 14 is 1-3 mm.

Furthermore, the included angle between the working surface of each thread in the self-tapping thread section 11 and the radial direction of the self-tapping thread section along the head part 1 of the implant is alpha, and alpha is more than or equal to 10 degrees and less than or equal to 30 degrees. Such a design facilitates implant implantation and reduces frictional heat generation.

Furthermore, the included angle between the working surface of each thread in the transition section 13 and the radial direction of the head 1 of the implant is beta, and beta is more than or equal to 5 degrees and less than or equal to 20 degrees. The included angle between the working surface of each thread in the thread-dense section 14 and the conical line direction of the head 1 of the implant is delta, and delta is more than or equal to 0 degree and less than or equal to 5 degrees. The design enables the implant to be convenient for extruding the side wall of the cavity in the implantation process, and is beneficial to obtaining the initial stability.

The embodiment of the present application provides an immediate implant in which the flutes 3 extend in the axial direction of the implant head 1. The flutes 3 extend in the axial direction of the implant head 1. Furthermore, the self-tapping screw thread section 11 is provided with a chip groove 3. The chip grooves 3 extend along the axial direction from one end of the self-tapping screw thread section 11 far away from the transition section 13 to the end of the self-tapping screw thread section 11 close to the transition section 13. Such design makes at the implant implantation in-process, collects cancellous bone, reduces pressure, avoids the heat production, does benefit to vascularization bone formation, has certain anti-rotation of adversity simultaneously. In one embodiment, the depth of the chip grooves 3 is 1.2-3.0 mm; 1.2-2.0 mm; 1.2-1.4 mm; 1.4-1.6 mm; 1.6-1.8 mm; 1.8-2.0 mm, etc. The width is 0.3-3.0 mm; 0.3-2.0 mm; 0.3-0.8 mm; 0.8-1.5 mm; or 1.5 to 2.0 mm. More specifically, the depth of the chip grooves 3 is 1.2-3.0 mm from the end close to the tip 15 to the end close to the transition section 13. The width of the chip grooves 3 is 0.3-3.0 mm from one end close to the tip 15 to one end close to the transition section 13.

In the immediate implant provided by the embodiment of the application, the implant head 1 is a cone, the implant neck 2 is a cylinder, and the outer diameters of the implant head 1 and the implant neck 2 at the connection position are equal. Specifically, the outer diameter of the head 1 of the implant is 3-5 mm. The outer diameter of the implant neck 2 is 4.5-5 mm.

The length-diameter ratio of the head part 1 of the implant is 5.5-13: 3-5. Further, the length of the head 1 of the implant ranges from 5.5mm to 13 mm.

In the immediate implant provided by the embodiment of the present application, the length of the implant can be set according to actual needs, and for example, the length can be 6mm to 16 mm. More specifically, the thickness may be 6mm, 8mm, 10mm, 13mm, 16mm, or the like. The length of the head part 1 of the implant with different lengths is changed, and the length of the neck part 2 of the implant is not changed. The design is to select the dental implant with the proper length according to different bone heights of clinical patients.

In the immediate implant provided by the embodiment of the present application, the diameter of the implant can be set according to actual needs, and for example, the diameter can be 3.0mm to 5.0 mm. More specifically, the diameter may be 3.0mm, 3.4mm, 3.8mm, 4.2mm, 4.5mm, 5.0mm, or the like. The implant can be adapted to different bone widths while ensuring enough strength of the implant.

In the immediate implant provided by the embodiment of the application, the length of the implant neck 2 (which is consistent with the axial direction of the implant 1) can be 0.5-3 mm; 0.5-1 mm; 1-2 mm; or 2 to 3 mm. Under the conditions of insufficient width of alveolar ridge crest, inclined implantation and the like, partial smooth neck is allowed to be positioned on the bone surface, bone grafting treatment is not needed, titanium and soft tissue sealing formation is facilitated, soft tissue inflammation around the implant and further bone absorption can be avoided even under the condition that the implant has inevitable neck bone absorption in a long term, and the long-term success rate of the implant is facilitated. The length (consistent with the axial direction of the implant 1) of the inner inclined platform 21 is 0.5-1 mm; 0.5-0.8 mm; or 0.8 to 1 mm. Aim at increases the effect that the planting body platform shifted, increases the thickness of platform district bone tissue and the closure of neck soft tissue, does benefit to neck bone and soft tissue long-term stability, guarantees the long-term success rate of planting body.

In the immediate implant provided by the embodiments of the present application, in one embodiment, the surface of the self-tapping thread segment 11 is a rough surface. The surface of the self-tapping thread section 11 is subjected to anodic oxidation treatment, so that the surface area and the roughness of the implant are increased, and the stronger cutting force is favorably kept.

In the immediate implant provided by the embodiments of the present application, in one embodiment, the surface of the transition section 13 is a rough surface. Specifically, the surface of the transition section 13 is roughened and treated by sand blasting and acid etching (SLA), so that the contact area and roughness of the implant are increased to the maximum extent, good biological compatibility is facilitated, and the osseointegration capability is enhanced.

In the immediate implant provided by the embodiment of the present application, in an embodiment, the implant neck 2 is a smooth surface, and a coating, such as a titanium nitride coating, is provided on the surface of the implant neck 2, which is beneficial to the formation of titanium and soft tissue closure, and is particularly beneficial to the aesthetic effect of the soft tissue.

The application also provides an oral implant for the elderly, which comprises the immediate implant provided by the first aspect of the application, and also comprises an abutment connected with the immediate implant. The abutment is generally a portion of the dental implant for old people exposed to the outside of the mucosa, and provides support, retention and stabilization to the artificial denture of its upper structure. The abutment and the immediate implant may be connected by an implant neck 2. Wherein, the base station can be a composite base station in the prior art.

Generally, in the embodiment of the present application, the end of the implant neck 2 away from the implant head 1 is a hollow inner hexagonal structure, and is connected to the abutment as an inner hexagonal connection. When the oblique planting is facilitated, the planar butt joint of the repairing base station, the compensation of the oblique angle and the correction of the repairing direction are realized; 3.0mm and 3.4mm diameter implant butt-joint platform are 2.5mm, and other diameter implant butt-joint platform diameters are unified to be 3.75mm, along with the increase of implant diameter, the advantage and the effect that the platform shifted increase thereupon, greatly increase implant edge bone and soft tissue stability, simultaneously, unified butt-joint platform reduces and faces the complexity of accessory selection and treatment process, reduces the treatment cost, reduces the error rate to can practice thrift operating time.

The implant leaves the factory and is independently packaged by 3 layers, and the innermost layer is packaged by a sterile titanium tube; the second layer of package is a sterile plastic package, and the outer package is a plastic package paper box. Clinically, according to the specific conditions of a patient, an implant with a proper length is selected, and after the implantation cavity is prepared, the implant is implanted. The clinical concrete use of the instant implant (new instant implant instant load and old person special implant) is as follows:

1. according to the planting process, anaesthetizing, turning over the valve, designing before the operation and dissecting and analyzing the wing plate, completing the fixed point, positioning and three-dimensional direction determination, completing the hole preparation by using a planting reamer, flushing bone chips in a pore canal and the like.

2. Confirming the length of the implant, opening the outer package of the implant, taking out and carefully opening the aseptic plastic package, and carefully pouring the implant filled with the aseptic inner package on an aseptic operating table to avoid the contact with the aseptic inner package and the slippage and pollution of the inner package.

3. Fully exposing the operation area in the mouth, stabilizing the opening position of the patient, taking out the implant from the sterile titanium tube package, and slowly rotating and implanting the head of the implant; adjusting the inner hexagonal plane to be consistent with the buccal surface; the sealing screw is installed for embedding, planting and healing or the composite abutment healing cap is installed for exposing and healing, and under the condition of better initial stability, the device can be matched with other implants for immediate load repair.

4. And finishing the working processes of sewing and the like according to the planting process.

To sum up, the immediate implant and the elderly oral implant provided by the embodiment of the application have the following advantages:

(1) the implant is designed into a conical 3 thread, the head part 1 of the implant is a self-tapping thread section 11 (such as a V-shaped self-tapping thread), a transition part (such as a U-shaped double-thread) and a dense thread (such as a linear fine thread structure), and the implant has the clinical application advantages of self-tapping, bone extrusion, high contact performance of upper bones and the like, can be quickly implanted, and simultaneously obtains enough initial stability, is favorable for the close contact and the stability of the upper bones, and is favorable for the initial stability and the secondary biological stability of the implant.

(2) The built-in threads (small V threads) are additionally arranged between the self-tapping thread sections 11 (such as V-shaped self-tapping threads), so that the self-tapping property of the implant is improved, the surface area of the implant can be effectively increased, the contact area of the bone implant is increased, and the bone bonding capability of the implant is enhanced.

(3) The titanium nitride smooth neck part allows part of the smooth neck part to be positioned on the bone surface under the conditions of insufficient width of alveolar ridge crest, inclined implantation and the like, does not need bone grafting treatment, is favorable for sealing and forming titanium and soft tissue, can still avoid inflammation of soft tissue around the implant and further bone absorption even under the condition that the implant generates inevitable neck bone absorption in a long term, and is favorable for long-term success rate of the implant, one end of the implant neck part 2, which is far away from the head part 21 of the implant, is provided with an inner inclined platform 21 with the height of 0.5-1mm, and aims to increase the effect of platform transfer of the implant, increase the thickness of the bone tissue in a platform area and the sealing property of the neck soft tissue, be favorable for long-term stability of the neck bone and the soft tissue and ensure the long-term success rate of the implant; the titanium nitride coating is beneficial to the closed formation of titanium and soft tissues, and is particularly beneficial to the aesthetic effect of the soft tissues.

(4) The lateral wall of implant neck 2 is equipped with interior oblique platform 21, and is concrete, and the lateral wall of the one end that implant neck 2 keeps away from the implant head is equipped with interior oblique platform 21, and length is 0.5-1mm, and aim at increases the effect that the implant platform shifted, increases the thickness of platform district bone tissue and the closure of neck soft tissue, does benefit to neck bone and soft tissue long-term stability, guarantees the long-term success rate of implant.

In conclusion, the present application effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present disclosure be covered by the claims of the present application.

Claims (10)

1. An immediate implant, characterized in that the immediate implant comprises an implant head (1) and an implant neck (2) which are connected, the implant head (1) is a cone, the outer diameter of the implant head (1) is gradually increased from one end far away from the implant neck (2) to one end close to the implant neck (2), and the implant head (1) sequentially comprises a self-tapping thread section (11), a transition section (13) and a dense thread section (14); the dense thread section (14) is connected with the neck part (2) of the implant; built-in threads (12) are respectively arranged between every two adjacent threads of the self-tapping thread section (11); the thread depth of the self-tapping thread section (11) is greater than that of the built-in thread (12); a chip groove (3) is arranged on the head (1) of the implant; a tip (15) is arranged at one end of the self-tapping thread section (11) far away from the transition section (13); the side wall of the implant neck (2) is provided with an inner inclined platform (21).

2. The immediate implant as claimed in claim 1, characterized in that the thread depth of the self-tapping thread segment (11) decreases from the end remote from the transition (13) to the end close to the transition (13).

3. The immediate implant of claim 1, characterized in that the self-tapping thread section (11) comprises a single self-tapping thread section (111) and a double self-tapping thread section (112); the double self-tapping thread section (112) is connected with the transition section (13); the internal thread (12) comprises a single set of threads (121) and a double set of threads (122).

4. The immediate implant of claim 3, wherein the single set screw thread (121) is provided between adjacent screw threads of the single self-tapping screw thread segment (111); the double-set threads (122) are arranged between adjacent threads of the double self-tapping thread section (112);

the thread depth of the single self-tapping thread section (111) is greater than that of the single set thread (121);

the thread depth of the double self-tapping thread section (112) is greater than the thread depth of the double set threads (122).

5. The immediate implant of claim 1, characterized in that the thread depth of the self-tapping thread segment (11) is greater than the thread depth of the transition segment (13);

the thread thickness of the self-tapping thread section (11) is greater than that of the transition section (13);

the thread pitch of the self-tapping thread section (11) is larger than that of the transition section (13).

6. The immediate implant of claim 1, characterized in that the thread depth of the transition section (13) is greater than the thread depth of the dense thread section (14);

the thread thickness of the transition section (13) is larger than that of the dense thread section (14);

the screw pitch of the transition section (13) is larger than that of the screw thread section (14).

7. The immediate implant according to claim 1, characterized in that the surface of the self-tapping thread segment (11) is a rough surface;

the surface of the transition section (13) is a rough surface;

the surface of the implant neck (2) is a smooth surface; the surface of the neck (2) of the implant is provided with a coating.

8. The immediate implant according to claim 1, characterized in that the flute (3) extends in the axial direction of the implant head (1); the depth of the chip groove is 1.2-3.0 mm; the width is 0.3-3.0 mm.

9. The immediate implant of claim 1, further comprising any one or more of the following technical features:

A1) the head (1) of the implant is of a solid structure;

A2) an included angle between the working surface of each thread in the self-tapping thread section (11) and the radial direction of the head part (1) of the implant is alpha, and alpha is more than or equal to 10 degrees and less than or equal to 30 degrees;

A3) the thread extending direction of the built-in thread (12) is consistent with the thread extending direction of the self-tapping thread section (11);

A4) the included angle between the working surface of each thread in the transition section (13) and the radial direction of the transition section along the head (1) of the implant is beta, and beta is more than or equal to 5 degrees and less than or equal to 20 degrees;

A5) an included angle between the working surface of each thread in the dense thread section (14) and the conical line direction of the head part (1) of the implant is delta, and delta is more than or equal to 0 degree and less than or equal to 5 degrees;

A6) the thread depth ratio of the self-tapping thread section (11) to the built-in thread (12) is 12-15: 3-6;

A7) the thread pitch proportion of the self-tapping thread section (11) and the transition section (13) is 12-15: 7-12;

A8) the thread depth proportion of the self-tapping thread section (11) to the transition section (13) is 12-15: 7-12;

A9) the length ratio of the self-tapping screw thread section (11) to the transition section (13) is 3-8: 2-5;

A10) the screw pitch proportion of the transition section (13) and the dense screw thread section (14) is 7-12: 3-5;

A11) the thread depth ratio of the transition section (13) to the dense thread section (14) is 7-12: 3-5;

A12) the length ratio of the transition section (13) to the dense thread section (14) is 2:1-5: 3;

A13) the length-diameter ratio of the implant head (1) is 5.5-13: 3-5;

A14) the length of the head part (1) of the implant is 5.5 mm-13 mm;

A15) the length of the implant neck (2) is 0.5-3 mm;

A16) the length of the inner inclined platform (21) is 0.5-1 mm.

10. An oral implant for elderly people, comprising the immediate implant according to any of claims 1-9, further comprising an abutment connected to the immediate implant.

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