CN201271294Y - Implant structure of artificial tooth root - Google Patents
Implant structure of artificial tooth root Download PDFInfo
- Publication number
- CN201271294Y CN201271294Y CNU2008201305971U CN200820130597U CN201271294Y CN 201271294 Y CN201271294 Y CN 201271294Y CN U2008201305971 U CNU2008201305971 U CN U2008201305971U CN 200820130597 U CN200820130597 U CN 200820130597U CN 201271294 Y CN201271294 Y CN 201271294Y
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- CN
- China
- Prior art keywords
- artificial tooth
- root
- platform
- tooth
- implant structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides an artificial dental root implant structure which can be locked with a support rack through bolts. The artificial dental root implant structure is provided with male threads at the exterior and is provided with an inner hole at the interior, and is characterized in that the inner hole sequentially comprises a hexagonal tapered hole and a threaded part; wherein the tapered hole is used to be sleeved with the support rack and to prevent relative rotation between the artificial dental root implant structure and the support rack; and the threaded part is used to be locked with the bolts.
Description
The application is that application number is 200720193260.0, and the applying date is on November 14th, 2007, and the utility model name is called the dividing an application of patent application of " implant structure of artificial tooth root ".
Technical field
This utility model relates to a kind of artificial tooth who is used for the artificial tooth structure and takes root in body, and behind life-time service, its structure is not yielding, and can avoid causing jawbone impaired.
Background technology
Old-fashioned artificial tooth is to utilize existing human teeth/dental bed, with crane span structure or alternate manner fixed denture, but in order to cooperate the installation artificial tooth, often must carry out destructive operation near healthy tooth, thereby undermines the tooth that closes on health.The artificial tooth structure that adopts the artificial tooth to take root in body is a kind of practice of novelty, can reduce the defective of traditional treatment.One example of this kind artificial tooth structure can be referring to Fig. 1, its structure comprises that mainly the artificial tooth takes root in body 12, a platform 14,16 3 parts of crown, decide on dissimilar structures in addition, taking root between a body 12 and the platform 14 the artificial tooth to need bolt to lock (not shown).The artificial tooth takes root in the similar human body root of the tooth of profile of body 12, and the position of its implantation is last jawbone or the mandible in the oral cavity, with the tooth root that replaces pulling out, and plants at this artificial root of the tooth and to utilize a platform 14 to lock artificial crown 16 on the body 12.Look alternate tooth difference, a platform 14 also has various shape.
The artificial tooth takes root in the success or not of body operation, need look root of the tooth and plant body and jawbone combination degree closely, and manually crown, Zhi Tai and artificial tooth takes root in the bonded degree of stability of body.Therefore, how to make the artificial tooth take root in body and jawbone, and the artificial tooth take root in a body and a platform stable bond, very important.
In the prior art, the artificial tooth takes root in a body and a bonded mode of platform, is broadly divided into three classes.The first kind can be referring to Fig. 2,3, and its root of the tooth is planted body 22 tops and is provided with outer-hexagonal jut 221, can be chimeric with the corresponding inner hexagonal hole 242 (Fig. 3) of platform 24 below.Fig. 3 marks the end face oblique view that root of the tooth is planted body 22, by finding out among the figure that root of the tooth plants body 22 inside and have screw thread 223, can combine locking with bolt 26 (Fig. 2).Prop up platform 24 and bolt 26 for two parts separately, illustrate its annexation among Fig. 2.
In prior art shown in Fig. 2,3, it mainly is to combine by bolt 26 with a platform that the artificial tooth takes root in body; Outer-hexagonal jut 221 and inner hexagonal hole chimeric then is when being used for preventing that artificial tooth from using, and causes the artificial tooth to take root in relatively rotating of body 22 and 24 of platforms, and combination is got loose.
The second class prior art can be referring to Fig. 4, and it is provided with inner hexagonal hole 421 above root of the tooth is planted body 42, and platform 44 below then is provided with corresponding outer-hexagonal jut 443, for chimeric each other.Root of the tooth is planted body 42 to be needed to use bolt 46 to combine locking with a platform 44 equally.
Identical with prior art shown in Fig. 2,3, outer-hexagonal jut 443 and inner hexagonal hole 421 chimeric in the time of can preventing that artificial tooth from using, causes root of the tooth to plant relatively rotating of body 42 and 44 of platforms, and combination is got loose.
First and second class hexagonal configuration of the prior art also changes other shape person into, and superfluous in addition showing, its basic structure purpose all is to be to prevent that root of the tooth from planting body and an interstation relatively rotates.
The 3rd class prior art can be referring to Fig. 5, and it is integral Zhi Tai and bolt design, that is its platform 54 has comprised bolt part 541.In addition, at the root of the tooth conical surface 523 of having planted body 52 indoor designs, closely sealed with facility.The advantage of this kind structure is not need to use extra bolt part, but for preventing that root of the tooth from planting for body relatively rotates with platform, then function a little less than.
Above-mentioned three class prior aries all have it not attain to improve part, when artificial tooth uses anti-be subjected on the function that stress prevents malformation not enough to some extent; And can after permanent the use, may cause root of the tooth to plant body to the dental bed application of force during because of teeth chewing, cause jawbone impaired to the jawbone internal displacement.
Therefore, be necessary shortcoming, improve at above prior art.
Summary of the invention
Because the above, the purpose of this utility model is to overcome the deficiencies in the prior art and defective, proposes preferable implant structure of artificial tooth root, with the problem of solution said structure distortion, and can protect jawbone to avoid impaired.
For reaching above-mentioned purpose, this utility model provides a kind of implant structure of artificial tooth root, can be for sealed by bolt with a platform, this implant structure of artificial tooth root outside has external screw thread, and inside has endoporus, it is characterized in that, this endoporus comprises bellmouth, locating hole, threaded portion in regular turn, wherein bellmouth and locating hole for and this platform fit, and this locating hole can prevent that an implant structure of artificial tooth root and the platform from relatively rotating, the threaded portion then supplies with bolt sealed.
In addition, this utility model also proposes a kind of artificial tooth structure, and comprise: the artificial tooth takes root in body, can be in the implant into body jawbone; Platform can to take root in body sealed by bolt with this artificial tooth; Crown can combine with this platform; It is characterized in that, this artificial tooth takes root in body inside and has endoporus, and this endoporus comprises bellmouth, locating hole, threaded portion in regular turn, and wherein bellmouth and locating hole supply and this platform fit, and this locating hole can prevent that an implant structure of artificial tooth root and the platform from relatively rotating, and the threaded portion then supplies with bolt sealed.
In preferable enforcement kenel, locating hole becomes hexagon.In addition, the artificial tooth takes root in external body and has external screw thread, and external screw thread comprises the upper surface of inclination and the flat bottom surface that does not tilt, and plants the displacement of body to jawbone inside with the opposing root of the tooth.
Below by specific embodiment is illustrated in detail, when the effect that is easier to understand the purpose of this utility model, technology contents, characteristics and is reached.
Description of drawings
Fig. 1 adopts the artificial tooth to take root in the artificial tooth structure of body in order to explanation;
Fig. 2,3 marks the first kind prior art that adopts the artificial tooth to take root in the artificial tooth structure of body;
Fig. 4 marks the first kind prior art that adopts the artificial tooth to take root in the artificial tooth structure of body;
Fig. 5 marks the 3rd class prior art that adopts the artificial tooth to take root in the artificial tooth structure of body;
Fig. 6,7 marks one of them preferred embodiment of the present utility model.
Symbol description among the figure
12 roots of the tooth are planted body
14 platforms
16 crowns
22 roots of the tooth are planted body
221 outer-hexagonals
223 screw threads
24 platforms
242 inner hexagonal holes
26 bolts
42 roots of the tooth are planted body
421 inner hexagonal holes
44 platforms
443 outer-hexagonal juts
46 bolts
52 roots of the tooth are planted body
523 conical surfaces
54 platforms
541 bolt part
62 roots of the tooth are planted body
621 bellmouths
623 hexagonal locating holes
625 threaded portions
627 external screw threads
The specific embodiment
Notion of the present utility model comprises two parts, first is that root of the tooth plants the inner hole structure of body, make itself and platform combine the back and be difficult for being out of shape because of stressed, second portion is that root of the tooth plants the structure of extracorporeal thread, makes it more can resist downwards the displacement of (jawbone, dental bed direction).
Above notion now is illustrated for an embodiment.See also Fig. 6,7, in the present embodiment, the endoporus that root of the tooth is planted body 62 comprises bellmouth 621, hexagonal locating hole 623,625 3 parts in threaded portion, wherein bellmouth 621 and hexagonal locating hole 623 for a platform (not shown) fit of correspondingly-shaped, locating hole 623 can prevent that an implant structure of artificial tooth root and the platform from relatively rotating, and 625 confessions in threaded portion combine (not shown) with bolt.Bellmouth 621 is preferable for the stress resistance, can prevent that root of the tooth from planting body and a platform combines back malformation; Hexagonal locating hole 623 can prevent that root of the tooth from planting body and a platform relatively rotates; 625 of threaded portions provide basic locking function.In addition, root of the tooth 627 of the external screw threads of planting body 62 comprise the upper surface of inclination and the flat bottom surface that does not tilt (supposing that with the jawbone position be the below).It should be noted that above structure only is an example, can to work equivalence replace.For example, bellmouth 621 itself can be taked hexagonal design (also being the inner hexagonal hole of taper), with the assistance location, and keep or omission hexagonal locating hole 623, or the like.
Test according to the design people, root of the tooth is planted a body and a corresponding platform, crown with bolt in conjunction with after, the other parts of secure bond body, and the test point on crown imposes the horizontal strength of a unit, compare first kind prior art (planting external hexagonal), the second class prior art (planting hexagonal in the body), and this utility model, found that, because this utility model endoporus comprises bellmouth 621, hexagonal locating hole 623,625 3 parts in threaded portion, no matter therefore be the maximum displacement that crown laterally moves, or the suffered maximum stress of bolt, this utility model all significantly is better than prior art.Test result such as following table.
| The tested person model | Maximum displacement (mm) | Bolt maximum stress (MPa) |
| Plant external hexagonal | 0.001 | 5.70 |
| Plant hexagonal in the body | 0.00068 | 2.68 |
| Plant body taper+interior hexagonal | 0.00018 | 0.80 |
As for the 3rd class prior art, though also adopt cone-shaped inner hole, and can't prevent that root of the tooth from planting body and a platform relatively rotates, therefore also obviously be inferior to this utility model.
In addition as previously mentioned, this utility model root of the tooth external screw thread 627 of planting body 62 comprises the upper surface of inclination and the flat bottom surface that does not tilt.The effect of this kind arrangement is during when teeth chewing so that to the dental bed application of force, can resist root of the tooth and plant the displacement of body to jawbone inside, protection jawbone and dental bed.
Below at preferred embodiment this utility model is described, but the above for making those skilled in the art be easy to understand content of the present utility model, is not to be used for limiting interest field of the present utility model only.Those skilled in the art are when thinking immediately and various equivalence variation within this utility model notion.For example, shown in the hexagonal locating hole, can be other shape, plant body and relatively rotate as long as can prevent root of the tooth with platform; The shape of each part, length etc. are not limited to icon; Shown in major part outside, also can add other part; Or the like.So all according to a notion of the present utility model and spirit impartial for it a variation or modification, all should be included in the claim scope of the present utility model.
Claims (4)
1. implant structure of artificial tooth root, can be for sealed by bolt with a platform, this implant structure of artificial tooth root outside has external screw thread, inside has endoporus, it is characterized in that this endoporus comprises in regular turn and is interior hexagonal bellmouth and threaded portion, wherein bellmouth supplies and this platform fit, and prevent that an implant structure of artificial tooth root and the platform from relatively rotating, the threaded portion then supplies with bolt sealed.
2. implant structure of artificial tooth root as claimed in claim 1 is characterized in that, this endoporus also includes locating hole except that comprising bellmouth and threaded portion, be arranged between bellmouth and the threaded portion.
3. artificial tooth structure comprises:
Implant structure of artificial tooth root can be in the implant into body jawbone;
Prop up platform, sealed with this implant structure of artificial tooth root by bolt;
Crown combines with this platform;
It is characterized in that, this implant structure of artificial tooth root inside has endoporus, and this endoporus comprises in regular turn and is interior hexagonal bellmouth and threaded portion, and wherein bellmouth supplies and this platform fit, and prevent that an implant structure of artificial tooth root and the platform from relatively rotating, the threaded portion then supplies with bolt sealed.
4. artificial tooth structure as claimed in claim 3 is characterized in that, this endoporus also includes locating hole except that comprising bellmouth and threaded portion, be arranged between bellmouth and the threaded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201305971U CN201271294Y (en) | 2007-11-14 | 2007-11-14 | Implant structure of artificial tooth root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201305971U CN201271294Y (en) | 2007-11-14 | 2007-11-14 | Implant structure of artificial tooth root |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201932600U Division CN201179117Y (en) | 2007-11-14 | 2007-11-14 | Implant structure of artificial tooth root |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201271294Y true CN201271294Y (en) | 2009-07-15 |
Family
ID=40881648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201305971U Expired - Fee Related CN201271294Y (en) | 2007-11-14 | 2007-11-14 | Implant structure of artificial tooth root |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201271294Y (en) |
-
2007
- 2007-11-14 CN CNU2008201305971U patent/CN201271294Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20121114 |