CN215080001U - Tooth implant system - Google Patents
Tooth implant system Download PDFInfo
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- CN215080001U CN215080001U CN202121002950.XU CN202121002950U CN215080001U CN 215080001 U CN215080001 U CN 215080001U CN 202121002950 U CN202121002950 U CN 202121002950U CN 215080001 U CN215080001 U CN 215080001U
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- implant
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- planting
- morse taper
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- 239000007943 implant Substances 0.000 title claims abstract description 84
- 239000004053 dental implant Substances 0.000 claims abstract description 17
- 230000000750 progressive effect Effects 0.000 claims description 3
- 210000000988 bone and bone Anatomy 0.000 description 34
- 238000010146 3D printing Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 230000009193 crawling Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000001054 cortical effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000002449 bone cell Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010065687 Bone loss Diseases 0.000 description 1
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- 208000037408 Device failure Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
本实用新型公开了一种牙齿种植体系统，包括种植螺钉以及与所述种植螺钉连接的种植基台，所述种植螺钉上靠近所述种植基台的一端沿周向设置有倒角斜面，所述种植螺钉的外表面上靠近所述倒角斜面的一段沿周向开设有自锁螺纹，所述种植螺钉的外表面上的另一段沿周向均布开设有若干方形孔，所述种植螺钉上远离所述倒角斜面的一端沿所述种植螺钉的轴线向内开设有中心孔道。本实用新型能够提高种植体和牙齿颌骨的生物相容性。
The utility model discloses a dental implant system, comprising an implant screw and an implant abutment connected with the implant screw. One end of the implant screw close to the implant abutment is provided with a chamfered slope along the circumferential direction. A section of the outer surface of the planting screw close to the chamfered inclined surface is provided with a self-locking thread along the circumferential direction, and another section of the outer surface of the planting screw is uniformly opened with a number of square holes in the circumferential direction, and the planting screw is far away from the circumferential direction. One end of the chamfered inclined surface is provided with a central hole inward along the axis of the implant screw. The utility model can improve the biocompatibility of implants and teeth and jaws.
Description
Technical Field
The utility model belongs to the technical field of tooth planting body, concretely relates to tooth planting body system.
Background
Modern dental implant technology, which transfers the load of dental implants to surrounding biological tissue, has developed into an independent area of research in mature oral medicine with multidisciplinary frontier technical support, with significant advantages over traditional false dentures.
At present, many oral implants are generally three-segment, including an implant screw implanted in an alveolar bone, an implant abutment and a crown. The lower end of the implant base is connected with the implant screw through threads, and the upper end of the implant base is bonded with the preformed hole of the dental crown through cement. According to a research investigation, the incidence rate of 5 years of planting-supported single crown-screw or abutment loosening is 12.7% (5.7-27%). The existing implant screws are generally filled with solid materials, and the overall elastic modulus of the implant screws is far greater than that of 2.398 +/-0.455 GPa of a jaw bone of a biological tooth, so that the biocompatibility is poor.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a tooth implant system, its aim at improves the biocompatibility of implant and tooth jaw.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
the utility model provides a tooth implant system, including planting the screw and with plant screwed connection's planting base station, be close to on the planting screw the one end of planting the base station is provided with the chamfer inclined plane along circumference, be close to on the surface of planting the screw one section on chamfer inclined plane has seted up from locking thread along circumference, a plurality of quad slit have been seted up along circumference equipartition to another section on the surface of planting the screw, keep away from on the planting screw the one end on chamfer inclined plane is followed the axis of planting the screw has inwards seted up central pore.
Furthermore, a plurality of three-blade-shaped notches are uniformly distributed on the other section of the outer surface of the planting screw along the circumferential direction, and the three-blade-shaped notches are located at positions far away from the chamfer inclined plane.
Furthermore, an internal thread hole and a morse taper hole connected with the internal thread hole are formed in the planting screw, the small end of the morse taper hole is connected with the internal thread hole, and the large end of the morse taper hole penetrates through the end part of the planting screw; the planting base station comprises an external thread section and a Morse taper frustum connected with the external thread section; the outer thread section is connected with the inner thread hole in a matched mode, and the Morse taper frustum is matched with the Morse taper hole.
Further, the morse taper hole and the morse taper frustum are both 7 degrees.
Further, the angle of the chamfer angle is 45 °.
Furthermore, the self-locking thread is a progressive thread with an upper inclined plane of 45 degrees and a lower inclined plane of 15 degrees.
Further, each side length of the square hole is 400 um.
Further, the diameter of the central hole is 1 mm.
Compared with the prior art, the utility model discloses following beneficial effect has at least: the utility model provides a tooth implant system, one end that is close to planting base station on planting the screw sets up the chamfer inclined plane along circumference, when bone tissue is growing, is favorable to improving the crawling of bone tissue, realizes that bone tissue wraps around planting the screw, and then improves the stability of planting the screw in the bone; a section of the outer surface of the implant screw, which is close to the chamfer inclined plane, is circumferentially provided with a self-locking thread, and the design of the self-locking thread is beneficial to improving the combination of the implant and the bone to be firmer; the other section of the outer surface of the implant screw is uniformly provided with a plurality of square holes along the circumferential direction, and the square holes are designed to reduce the elastic modulus of the implant and simultaneously facilitate the growth of bone tissues, so that bone combination is realized when bone cells grow into the holes; keep away from the one end on chamfer inclined plane and inwards seted up central pore along the axis of planting the screw on planting the screw, the design of central through-hole can reduce 5% -7% of the appearance to reduce the elastic modulus of implant, the utility model discloses the biocompatibility of implant and bone has generally been improved.
Furthermore, another section on the outer surface of the planting screw is evenly provided with a plurality of three-blade-shaped notches along the circumferential direction, and the plurality of three-blade-shaped notches are positioned at the positions far away from the chamfer inclined plane, so that the stability of the planting screw is improved, and once the bone starts to grow and fill the space of the planting screw after the planting screw is implanted, the planting screw cannot be reversed.
Furthermore, the Morse taper hole and the Morse taper frustum are both in a 7-degree cold welding phenomenon, and the planting screw and the planting base platform can be tightly attached without rotation.
Furthermore, the angle of the chamfer inclined plane is 45 degrees, so that the crawling of bone tissues is improved, the bone tissues wrap the implant screw, and the stability of the implant screw in the bone is further improved.
Furthermore, the self-locking thread is a progressive thread with an upper inclined plane of 45 degrees and a lower inclined plane of 15 degrees, and the thread has self-locking property, so that the combination of the implant and the bone is firmer.
Furthermore, the side length of each square hole is 400um, and the advantage of design like this is favorable to bone cell to open into along the pore wall.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a dental implant system according to the present invention;
fig. 2 is a schematic longitudinal sectional view of a dental implant system according to the present invention;
fig. 3 is a schematic top view of an implant screw of a dental implant system according to the present invention;
fig. 4 is a schematic view of an implant screw structure in a dental implant system according to the present invention;
fig. 5 is a schematic view of the overall structure of an implant abutment in a dental implant system according to the present invention;
fig. 6 is a schematic bottom view of an implant abutment in a dental implant system according to the present invention.
In the figure: 1-planting screws; 101-chamfering an inclined plane; 102-self-locking thread; 103-square hole; 104-a three-bladed incision; 105-a central bore; 106-an internally threaded hole; 107-Morse taper hole; 2-planting base station; 201-external thread section; 202-morse taper frustum.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As a specific embodiment of the present invention, combine fig. 1 and fig. 2 to show, a tooth implant system, including planting screw 1 and the planting base station 2 of being connected with planting screw 1, it is connected with alveolar bone to plant screw 1, in order to be favorable to improving the crawling of bone tissue, combine fig. 4 to show, the one end that is close to planting base station 2 on planting screw 1 is provided with chamfer inclined plane 101 along circumference, as preferred embodiment, the angle of chamfer inclined plane 101 is 45, through verifying, when the angle of chamfer inclined plane 101 is 45, the effect of crawling of bone tissue is the best, thereby let bone tissue wrap around planting screw 1, make planting screw 1 more firm in the bone.
In order to prevent the implant screw 1 from loosening in the bone tissue, as shown in fig. 4, a self-locking thread 102 is circumferentially arranged on a section, close to the chamfer inclined plane 101, of the outer surface of the implant screw 1, and the bone tissue grows into the self-locking thread 102 to form self-locking. Typically, the spacing between self-locking threads 102 and chamfer 101 is typically 0.5 mm.
As shown in fig. 3 and fig. 4, a plurality of square holes 103 are uniformly distributed along the circumferential direction at another section on the outer surface of the implant screw 1, the axis of each square hole 103 is perpendicular to the axial direction of the implant screw 1, a central hole 105 is inwards arranged at one end of the implant screw 1, which is far away from the chamfer inclined plane 101, along the axis of the implant screw 1, the arrangement of the square holes 103 and the central hole 105 can improve the void ratio on the premise of meeting the strength, so that the volume of the implant screw 1 is reduced, the elastic modulus of the implant screw 1 can be reduced, the space for bone growth is increased, the biocompatibility of the dental implant and bone tissue is improved, the implant failure caused by bone loss is avoided, and the biomechanical performance is improved. In a preferred embodiment, the side length of each square hole 103 is 400um, and bone tissue grows better in the 400um square holes; the diameter of the central hole 105 is 1mm, and the capacity reduction of the planting screws by 5% -7% is realized by arranging the central hole 105.
As a more preferable embodiment, as shown in fig. 1, 3 and 4, a plurality of three-blade cuts 104 are further uniformly distributed along the circumferential direction on another section of the outer surface of the planting screw 1, and the plurality of three-blade cuts 104 are located at a position away from the chamfer 101. The three-blade-shaped incision 104 increases the contact area of the implant screw 1 and bone tissues, reduces the volume of the implant screw 1, and avoids the reverse looseness of the implant screw 1 after the implant screw 1 with the three-blade-shaped incision 104 is implanted, thereby effectively improving the stability of the implant screw 1. Specifically, the three-blade-shaped cut 104 is arranged on the implant screw 1 close to the lower end, so that the stress concentration at the lower end of the implant screw 1 is reduced, the stress shielding of local bone tissues is reduced, natural bones can be rapidly reshaped in the vicinity of the three-blade-shaped cut 104, and the densification of bone around the implant screw 1 improves the speed of bone integration; meanwhile, the structural design of the three-bladed incision 104 improves the stability of the implant screw 1, and once the bone starts to grow and fill the space after the implant screw 1 is implanted, the implant screw 1 cannot be reversed.
As shown in fig. 2, the implant screw 1 is screwed with the implant abutment 2, specifically, the implant screw 1 has an internal threaded hole 106 and a morse taper hole 107 connected with the internal threaded hole 106, a small end of the morse taper hole 107 is connected with the internal threaded hole 106, and a large end of the morse taper hole 107 passes through an end of the implant screw 1. With reference to fig. 5, plant base station 2 and include external screw thread section 201 and the morse tapering frustum 202 of being connected with external screw thread section 201, it is preferred, the utility model provides a morse tapering taper hole 107 and morse tapering frustum 202 are 7, as shown in fig. 2, external screw thread section 201 and internal thread hole 106 accordant connection, morse tapering frustum 202 matches with morse tapering taper hole 107, have realized planting screw 1 and planting base station 2's being connected. The 7-degree Morse taper hole 107 and the Morse taper frustum 202 are connected in a matched mode, the cold welding phenomenon is achieved, rotation between the implant screw 1 and the implant base station 2 is avoided, relative rotation between the dental crown and the implant screw 1 can be effectively prevented under the condition of biological load, and the problem of mechanical adaptability of the implant screw 1 and the implant base station 2 is solved.
The utility model relates to a tooth implant system still includes the dental crown, and the setting of crown is on the upper portion of planting base station 2, adopts the cement of cement between dental crown and the planting screw 1. The middle part of the outer surface of the implant abutment 2 adopts a natural transition arc surface for being connected with cortical bone, so that stress concentration and even stress shielding caused by sharp corners are avoided. The dental crown is manufactured by 3D printing, and specifically comprises the following steps: and (3) making a tooth impression around the missing tooth by using the female die and the male die of the oral cavity, obtaining the appearance of the missing tooth through three-dimensional scanning, and finally making the required dental crown by using 3D printing.
As a specific embodiment of the utility model, plant screw 1 and adopt to be Ti6AL4V, plant screw 1 and adopt 3D to print one shot forming, and the surface roughness of planting screw 1 is 10-15 μm. The implant base 2 is 316L, the implant base 2 is formed in a 3D printing one-step mode, the surface roughness of the implant base 2 is about 8 +/-2 mu M, the thread of the external thread section 201 is M1.8, the dental crown is in a form of an adjacent tooth, when the dental crown is manufactured, a dental impression around a missing tooth of a patient is manufactured by using an oral cavity female die and an oral cavity male die of the patient, the approximate appearance of the missing tooth is reversely calculated through three-dimensional scanning, and the individual missing dental crown is designed for the patient through manual intervention. The material of the dental crown is CoCr alloy, the material is formed in one step through 3D printing, the roughness of the surface of the dental crown is about 8 mu m, the hardness is 370HV, the hardness is reduced through a heat treatment method, the roughness is increased through sand blasting, and finally porcelain baking treatment is carried out.
Use the utility model provides a pair of when tooth implant system carries out tooth implantation, including following step:
firstly, cutting a cortical bone, and prefabricating an implant hole on an alveolar bone;
then, the lower part of the planting screw 1 is planted into the planting hole, and the planting hole is repaired for 3-6 months;
secondly, when the implant screw 1 is healed with the bone tissue to a preset degree, cutting the cortical bone again;
secondly, the planting base 2 penetrates through the planting screw 1 to be meshed with the internal thread of the planting screw 1;
and finally, bonding the dental crown and the implant screw through the cement.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121002950.XU CN215080001U (en) | 2021-05-11 | 2021-05-11 | Tooth implant system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121002950.XU CN215080001U (en) | 2021-05-11 | 2021-05-11 | Tooth implant system |
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| Publication Number | Publication Date |
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| CN215080001U true CN215080001U (en) | 2021-12-10 |
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| CN202121002950.XU Active CN215080001U (en) | 2021-05-11 | 2021-05-11 | Tooth implant system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100979A (en) * | 2021-05-11 | 2021-07-13 | 陕西科技大学 | A kind of dental implant system and application |
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- 2021-05-11 CN CN202121002950.XU patent/CN215080001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113100979A (en) * | 2021-05-11 | 2021-07-13 | 陕西科技大学 | A kind of dental implant system and application |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Effective date of registration: 20231220 Address after: 710000, Room 510, Building B2, South District of Huajin Entrepreneurship Park, Caotan 6th Road, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee after: Xi'an Zhihuiyun Dental Medical Technology Co.,Ltd. Address before: 710021 Shaanxi province Xi'an Weiyang University Park Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |