CN202920376U - Artificial tooth root and implantation body - Google Patents
Artificial tooth root and implantation body Download PDFInfo
- Publication number
- CN202920376U CN202920376U CN 201220513768 CN201220513768U CN202920376U CN 202920376 U CN202920376 U CN 202920376U CN 201220513768 CN201220513768 CN 201220513768 CN 201220513768 U CN201220513768 U CN 201220513768U CN 202920376 U CN202920376 U CN 202920376U
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- main part
- artificial tooth
- tooth root
- thread
- bone
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Abstract
The utility model relates to an artificial tooth root and an implantation body. The artificial tooth root comprises a main body part and a coronal part, wherein the outer surface of the main body part forms a gradual thread and is provided with a circular arc end part, and the gradual thread is used for being correspondingly implanted into a sponge bone of an alveolus bone; and the outer surface of the coronal part forms an annular thread and has a connection slotted hole, and the annular thread is used for being correspondingly implanted into a cortical bone of the alveolus bone. According to the artificial tooth root and the implantation body disclosed by the utility model, the bite force can dispersed, the loss of bone substances is reduced, the problem that the stress is excessively concentrated can be solved, the risk of nerve damage during implantation is reduced, the location of implantation body during implantation is modified, and the success ratio of an operation is effectively increased.
Description
Technical field
This utility model relates to implant tooth field, particularly has the artificial tooth root of circular arc end and ring shaped thread and plants body about a kind of.
Background technology
Dental implant is a kind of body of planting that replaces whole or local dermal tooth, and it mainly comprises artificial tooth root, Zhi Taiti and corona three parts.When planting tooth, the dentist first squeezes into artificial tooth root in alveolar bone, after artificial tooth root and alveolar bone are combined closely, then installs thereon Zhi Taiti, so can solve the shortcomings such as the firm not or for years sclerotin atrophy of getting off of traditional activity formula artificial tooth.Secondly, artificial tooth root also solves the significant problem that traditional artificial tooth can't overcome for a long time, for example: and can be directly at edentulous region implantable artificial root of the tooth, and need not the tooth of reconditioning both sides adjacency, perhaps live adjacent teeth by the metal hook subcard and make artificial tooth.
Yet, this artificial tooth root still has following problems in actual use, for example: (1) existing artificial tooth root only utilizes the spiral of main part to be fixed and the alveolar bone driving fit, when interlock, the stressed maximum of osseous tissue is positioned at place, cortical bone top, when stress distribution is inhomogeneous, easily cause and plant that impaired sclerotin is absorbed by the body around body, bone integrate to run off forms pouch, and the chance that makes dental plaque be piled up in pouch increases, or produces rotation and the situation such as get loose.(2) because the exterior design of existing artificial tooth root is not good, make artificial tooth root touch risk thereby the raising of nerve and maxillary nasal sinuses, the neural risk of injury when causing implanting, and then produce soft tissue hyperplasia around the artificial tooth root, suppurate, bleed, the phenomenon such as pain, even cause patient's shape of face crooked when serious.
So, be necessary to provide a kind of artificial tooth root and plant body, to solve the existing problem of prior art.
Summary of the invention
Main purpose of the present utility model is to provide a kind of artificial tooth root and plants body, utilize the circular arc end, so that uniform distribution stress reduces the risk that causes unnecessary perforation and compressing mental nerve when implanting, and improve the location that artificial tooth root is implanted, with the success rate of effective lifting operation.
Second purpose of the present utility model is to provide a kind of artificial tooth root and plants body, utilizes ring shaped thread, dispersive stress, and then reduce bone-loss.
For achieving the above object, this utility model provides a kind of artificial tooth root, and it is provided with: a main part, and described main part one outer surface forms a gradual screw thread, and the end with a circular arc, wherein this ring shaped thread is implanted in a spongy bone of an alveolar bone in order to correspondence; And a coronal, described coronal one outer surface forms a ring shaped thread, and has one and connect slotted eye, and wherein this ring shaped thread is implanted in one of described alveolar bone cortical bone place in order to correspondence.
In one of this utility model embodiment, wherein said gradual screw thread is the twin-feed spiral screw thread, and a side of the close main part of described ring shaped thread is arc-shaped curved surface.
In one of this utility model embodiment, described main part has two spiral cutting swords, and wherein said two spiral cutting swords are symmetricly set on described gradual screw thread by the end of described main part respectively.
In one of this utility model embodiment, described spiral cutting sword has an angle of inclination with respect to an axis of described main part, and extend to described main part length 1/2 to 2/3 between.
In one of this utility model embodiment, described main part is that blunted cone shape is cylindric, and described coronal is cylindric.
For reaching above-mentioned purpose, this utility model also provides a kind of implant, it is provided with: an artificial tooth root, it comprises: a main part, described main part one outer surface forms a gradual screw thread, and the end with a circular arc, wherein this ring shaped thread is implanted in a spongy bone of an alveolar bone in order to correspondence; And a coronal, described coronal one outer surface forms a ring shaped thread, and has one and connect slotted eye, and wherein this ring shaped thread is implanted in one of described alveolar bone cortical bone place in order to correspondence; And a corona, described corona is combined on described artificial tooth root.
In one of this utility model embodiment, described implant also comprises: a connection handle is combined in one of described coronal and connects in slotted eye; And a stage body, be combined on described connection handle, and described corona is combined on described Zhi Taiti.
In one of this utility model embodiment, described gradual screw thread is the twin-feed spiral screw thread, and a side of the close main part of described ring shaped thread is arc-shaped curved surface.
In one of this utility model embodiment, described main part has two spiral cutting swords, and described two spiral cutting swords are symmetricly set on described gradual screw thread by the end of described main part respectively.
In one of this utility model embodiment, described spiral cutting sword has an angle of inclination with respect to an axis of described main part, and extend to described main part length 1/2 to 2/3 between.
With respect to prior art, this utility model is under the same load size, alveolar bone can bear better stress distribution when interlock, effectively reduce excessively heavily stressed that artificial tooth root and sclerotin on every side cause, and then reduces the phenomenon that bone-loss around it or rotation get loose and occur.In addition, this utility model can be by accurately controlling the position of shape, thickness and nerve, blood vessel and the nasal sinuses of alveolar bone, coordinate the every design of this utility model, further reduce and infect the risk that to bring when anaphylaxis, runny nose or the epistaxis etc. that cause are planted the body operation.
Do with real about feature of the present utility model, coordinate the graphic most preferred embodiment of doing to be described in detail as follows.
Description of drawings
Fig. 1: the artificial tooth root schematic diagram of this utility model preferred embodiment.
Fig. 2: Fig. 1 is along the generalized section of A-A direction.
Fig. 3: Fig. 1 is along the generalized section of B-B direction.
Fig. 4: the artificial tooth root of this utility model preferred embodiment, Zhi Taiti and corona assembling schematic diagram.
[primary clustering symbol description]
10---artificial tooth root; 11---main part; 111---gradual screw thread; 112---the end; 113---the spiral cutting sword; 12---coronal; 121---ring shaped thread; 122---connect slotted eye; 123---female thread; 124---interior hexagonal design; 13---connection handle; 14---Zhi Taiti; 15---corona; 16---gingiva; 17---spongy bone; 18---cortical bone.
The specific embodiment
For above-mentioned and other purpose of the present utility model, feature, advantage can be become apparent, hereinafter will be especially exemplified by this utility model preferred embodiment, and coordinate appended graphicly, be described in detail below.In addition, the direction term that this utility model is mentioned, such as " on ", D score, 'fornt', 'back', " left side ", " right side ", " interior ", " outward " or " side " etc., be only the direction with reference to accompanying drawing.Therefore, the direction term of use is in order to explanation and understands this creation, but not in order to limit this creation.
Please refer to shown in Figure 1ly, the artificial tooth root 10 of this utility model preferred embodiment mainly comprises a main part 11 and a coronal 12.These main part 11 outer surfaces have a gradual screw thread 111, and an end 112 of its bottom is a circular arc design, reach described main part 11 and have two spiral cutting swords 113, it is symmetricly set on the gradual screw thread 111 of this Double helix by the end of this main part 11 respectively.The outer surface of this coronal 12 has a ring shaped thread 121, and its inside has a connection slotted eye 122; Wherein this ring shaped thread 121 is corresponding to the position of cortical bone (not shown).This utility model will be in hereinafter utilizing the 1st to 4 detail structure, assembled relation and the operation principles thereof that describes one by one above-mentioned each assembly of preferred embodiment in detail.
Referring again to Fig. 1, compared to existing columned main part, main part 11 of the present utility model is a blunted cone shape cylindrical design, the external form of natural root of the tooth after its approximate exodontia wound, therefore meet biological adaptation, and have higher degree of stability, and the strength can be with interlock the time is passed on average around this main part 11, the present embodiment is from upwards increasing gradually diameter apart from this 1/3 place, main part 11 end.
This main part 11 has a gradual screw thread 111, under the effect of horizontal force, this gradual screw thread 111 can reach according to rotation mode the purpose of extruding alveolar bone, effectively reduce maximum stress, and increase the degree of stability of implanting the rear initial stage, make bone integration ratio increase, especially when being subject to side force, spongy bone part strength can evenly distribute, and expansible narrow bone ridge, make impaired sclerotin also can obtain high stability again.In addition, in the bootable implantation process of this gradual screw thread 111, blood is sought connections with, and the collocation width of thread struts alveolar bone gradually.In the present embodiment, this gradual screw thread 111 is a double end screw, claims again two helical pitch spirals, each rotation two helical pitch distances of can advancing, and this design can be saved the implant surgery half the time, and does not also produce unnecessary heat in operation process.The end 112 (front end) of this main part 11 is a circular arc design, and it is in order to avoid this artificial tooth root 10 to touch or pierce through nerve and maxillary nasal sinuses.
In one of this utility model embodiment, this main part 11 separately has two spiral cutting swords 113, and it is symmetricly set on the gradual screw thread 111 of this Double helix by the end of this main part 11 respectively.Arranging along the parallel making of implant rotation axis direction of general cutting edge easily produces enormous pressure because of high rotational resistance to alveolar bone in process.And two spiral cutting swords 113 of the present utility model have an angle of inclination (for example between 10 degree between 45 degree) with respect to the axis (longitudinal axis) of this main part 11, and extend to these main part 11 length 1/2 to 2/3 between.This spiral cutting sword 113 can gradual extruding alveolar bone, relaxes torsion, reduces cutting force, further guide blood and bone bits simultaneously, and the broken bone that is cut by this spiral cutting sword 113 can participate in the generation of new bone future.This spiral cutting sword 113 also can avoid this artificial tooth root 10 to rotate from body in addition.It should be noted that this spiral cutting sword 113 is not for restriction this utility model, can use same concept to make even four spiral cutting swords of triple helical cutting edge according to designing requirement.
Referring again to Fig. 1, because can causing, this main part 11 plants the too much stress concentration of body around this coronal 12, and this stress distribution is directly proportional to the diameter of this coronal 12, therefore coronal 12 of the present utility model is designed to one cylindricly, and its diameter equals the maximum gauge of this main part 11 upper ends.The outer surface of this coronal 12 has this ring shaped thread 121, can with the cortical bone fluid-tight engagement, effectively reduce micro-fracture; With respect to the side away from this main part 11, this ring shaped thread 121 is arc-shaped curved surface in the side near this main part 11.In this utility model, the width of thread of this ring shaped thread 121 is preferably 0.4 micron (μ m), and reaching flight pitch is 0.3 micron, but this utility model is not limited to this.
Please refer to Fig. 2, the artificial tooth root of this utility model preferred embodiment is along the generalized section of A-A direction; And simultaneously with reference to Fig. 3, the artificial tooth root of this utility model preferred embodiment is along the generalized section of B-B direction.The end face of this coronal 12 separately sets to the concave and forms a taper connection slotted eye 122, this connection slotted eye 122 is a common-use size specifications design, has a female thread 123 in it, can connect a stage body 14 by a connection handle 13, female thread 123 outsides in this connection slotted eye 122 also have an interior hexagonal design 124, it can provide an interface, reduce side-play amount by frictional force and bear the side force degree of stability with lifting, it is corresponding that this Zhi Taiti 14 is provided with an outer-hexagonal shape design, by embedding and hexagonal design 124 in mode is connected this.This hexagonal design has six angle available location, and it is good to have anti-revolving property, the location closely and prevent the advantage such as antibacterial infiltration, this design also can be octagonal, dodecagon, but this utility model is not limited to this.
In an embodiment of the present utility model, wherein the main part 11 of this artificial tooth root 10 is identical with the material of coronal 12, be for example pure titanium, titanium alloy or zirconium oxide, or other Biocomposite material (as various metal glasss), but this utility model is not limited to this.
Please refer to shown in Figure 4, the artificial tooth root of this utility model preferred embodiment, Zhi Taiti and corona assembling schematic diagram, wherein this artificial tooth root 10 is sequentially in conjunction with a connection handle 13, stage body 14 and a corona 15.As mentioned above, at first the main part 11 of this artificial tooth root 10 utilizes instrument to rotate, thereby in the spongy bone 17 of the alveolar bone under corresponding implantation gingiva 16, locates until these coronal 12 correspondences are implanted to the cortical bone 18 (bone bed) of this alveolar bone.Then, as shown in Figures 3 and 4, this Zhi Taiti 14 is combined on this connection handle 13.Subsequently, as shown in Figure 3, this connection handle 13 is combined in this connection slotted eye 122.And, last, as shown in Figure 4, this corona 15 is combined on this Zhi Taiti 14.By this, by this artificial tooth root 10, connection handle 13, Zhi Taiti 14 and corona 15 jointly sequentially assembling consist of an implant.It should be noted that this utility model also can be made into a single-piece implant in advance by this artificial tooth root 10 and Zhi Taiti 14, can directly plant this single-piece implant on this alveolar bone with one step this moment.
As mentioned above, though Chang Yinqi design is good and cause the patient that the shortcomings such as other oral health issue occur also to replace traditional artificial tooth compared to existing artificial tooth root, this utility model of Fig. 1 to Fig. 4 is under the same load size, alveolar bone can bear better stress distribution when interlock, effectively reduce excessively heavily stressed that artificial tooth root and sclerotin on every side cause, and then reduce the phenomenon that bone-loss around it or rotation get loose and occur.In addition, this utility model can be by accurately controlling the position of shape, thickness and nerve, blood vessel and the nasal sinuses of alveolar bone, angle and length when coordinating this utility model design and implantation, further reduction is infected anaphylaxis, runny nose or the epistaxis etc. that cause and is planted the risk that may bring when body is performed the operation.
Although this utility model discloses with preferred embodiment; so it is not to limit this utility model; any personage who has the knack of this skill; in the spirit and scope that do not break away from this creation; when can do various changes and modification, therefore protection domain of the present utility model when with claims the person of being defined be as the criterion.
Claims (10)
1. an artificial tooth root, is characterized in that, comprises:
One main part, described main part one outer surface forms a gradual screw thread, and the end with a circular arc, and wherein this ring shaped thread is implanted in a spongy bone of an alveolar bone in order to correspondence; And
One coronal, described coronal one outer surface forms a ring shaped thread, and has one and connect slotted eye, and wherein this ring shaped thread is implanted in one of described alveolar bone cortical bone place in order to correspondence.
2. artificial tooth root according to claim 1, is characterized in that, described gradual screw thread is the twin-feed spiral screw thread, and a side of the close main part of this ring shaped thread is arc-shaped curved surface.
3. artificial tooth root according to claim 2, is characterized in that, described main part has two spiral cutting swords, and described two spiral cutting swords are symmetricly set on described gradual screw thread by the end of described main part respectively.
4. artificial tooth root according to claim 3, is characterized in that, described spiral cutting sword has an angle of inclination with respect to an axis of described main part, and extend to described main part length 1/2 to 2/3 between.
5. artificial tooth root according to claim 1, is characterized in that, described main part is that blunted cone shape is cylindric, and described coronal is cylindric.
6. an implant, is characterized in that, comprises:
One artificial tooth root, described artificial tooth root comprises:
One main part, described main part one outer surface forms a gradual screw thread, and the end with a circular arc, and wherein this ring shaped thread is implanted in a spongy bone of an alveolar bone in order to correspondence; And
One coronal, described coronal one outer surface forms a ring shaped thread, and has one and connect slotted eye, and wherein this ring shaped thread is implanted in one of described alveolar bone cortical bone place in order to correspondence; And
One corona, described corona is combined on described artificial tooth root.
7. implant according to claim 6, is characterized in that, described implant also comprises:
One connection handle, described connection handle are combined in one of described coronal and connect in slotted eye; And
A stage body, described Zhi Taiti is combined on described connection handle, and described corona is combined on described Zhi Taiti.
8. implant according to claim 6, is characterized in that, described gradual screw thread is the twin-feed spiral screw thread, and a side of the close main part of described ring shaped thread is arc-shaped curved surface.
9. implant according to claim 8, is characterized in that, described main part has two spiral cutting swords, and described two spiral cutting swords are symmetricly set on described gradual screw thread by the end of described main part respectively.
10. implant according to claim 9, is characterized in that, described spiral cutting sword has an angle of inclination with respect to an axis of described main part, and extend to described main part length 1/2 to 2/3 between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513768 CN202920376U (en) | 2012-10-09 | 2012-10-09 | Artificial tooth root and implantation body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513768 CN202920376U (en) | 2012-10-09 | 2012-10-09 | Artificial tooth root and implantation body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202920376U true CN202920376U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513768 Expired - Lifetime CN202920376U (en) | 2012-10-09 | 2012-10-09 | Artificial tooth root and implantation body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202920376U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550004A (en) * | 2013-11-18 | 2014-02-05 | 大连三生科技发展有限公司 | Artificial dental implant, artificial dental implanting system and implanting method |
| CN111658197A (en) * | 2020-06-23 | 2020-09-15 | 西安交通大学口腔医院 | Dental implant |
| CN114795537A (en) * | 2021-01-27 | 2022-07-29 | 上海交通大学医学院附属第九人民医院 | Stepped drill for planting |
-
2012
- 2012-10-09 CN CN 201220513768 patent/CN202920376U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103550004A (en) * | 2013-11-18 | 2014-02-05 | 大连三生科技发展有限公司 | Artificial dental implant, artificial dental implanting system and implanting method |
| CN111658197A (en) * | 2020-06-23 | 2020-09-15 | 西安交通大学口腔医院 | Dental implant |
| CN111658197B (en) * | 2020-06-23 | 2022-02-11 | 西安交通大学口腔医院 | Dental implant |
| CN114795537A (en) * | 2021-01-27 | 2022-07-29 | 上海交通大学医学院附属第九人民医院 | Stepped drill for planting |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |