CN103379877B - Planting body fixator - Google Patents
Planting body fixator Download PDFInfo
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- CN103379877B CN103379877B CN201280008572.3A CN201280008572A CN103379877B CN 103379877 B CN103379877 B CN 103379877B CN 201280008572 A CN201280008572 A CN 201280008572A CN 103379877 B CN103379877 B CN 103379877B
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- crest
- fixator
- bone
- planting body
- screw portion
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Prosthetics (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a kind of planting body fixator, described planting body fixator is inserted in alveolar bone to support artificial tooth. Described planting body fixator comprises vertically extending body, and the screw portion being vertically wound around in the outer surface of described body with spiral form. Described screw portion comprises multiple; Multiple crests, described multiple crests are in vertical direction each other by described separately; With the slope that is connected described crest and described. Described slope comprises: upslope face, and described upslope face is inclined upwardly to the center of described body from a crest; Domatic with declivity, described declivity is domatic downward-sloping to the center of described body from a described crest. Be connected to the described upslope face of a described crest and the described declivity interior angle between domatic and be equal to or less than 30 degree.
Description
Technical field
The disclosure relates to planting body fixator, and more specifically, relates to such planting body fixator,Described planting body fixator has caused little the turning round of bone tissue by surrounding bone during insertionSquare changes.
Background technology
Spiral fixator is inserted in alveolar bone to support artificial tooth, and comprises vertically extending bodyPortion and be vertically wrapped in the screw portion of the outer surface of described body with spiral form. Wherein insertEnter to have the alveolar bone of fixator to be divided into cancellous bone and cortex bone. Compared with cortex bone, cancellous bone is phaseTo soft bone tissue, cortex bone is harder and form the film around the relative thin of cancellous bone than cancellous bone. LogicalOften, because the degree of depth of cancellous bone is greater than the degree of depth of cortex bone, so fixator is inserted and mainly insertedEnter in cancellous bone.
For fixator is inserted in alveolar bone, first use be drilled in alveolar bone form have specificThe hole of diameter, is then inserted into fixator rotation in hole, and by form negative thread in holeBe inserted in alveolar bone.
In alveolar bone, there is different bone densities because behaving, somebody has harder bone tissue,And somebody has softer bone tissue. First the operator that planting body fixator is operated will makeThe user's that will operate thereon with inspection with fc-specific test FC bone tissue. Then, if operationMember determines that the user's that will operate alveolar bone is suitable for this planting body fixator thereon, behaviourWork person forms hole and inserts this planting body solid thereon in the user's that will operate alveolar boneDetermine device.
Particularly, as shown in FIG. 1, when (, fixator 100 is placed on to softer bone tissueCartilage) in time, form the hole with less inner diameter d 3 by boring, and fixator 100 be inserted intoKong Zhong. Like this, in the time fixator 100 being placed in the alveolar bone with soft bone tissue, insertEnter fixator 100, and the partial fixing that fixator 100 is contacted with surrounding bone is to make it haveWide area, and therefore make fixator 100 to be stably fixed in alveolar bone.
In addition, as shown in FIG. 2, (, normal when fixator 100 being placed on to normal bone tissuesBone) in time, during holing, form the hole with wider inner diameter d 2 (d2 > d3), then by fixator 100Be inserted in hole, therefore prevent from producing excessive insertion moment of torsion during the process of placing fixator 100,And fixator 100 can be stably fixed in alveolar bone.
In addition, as shown in FIG. 3, when fixator 100 being placed on to hard bone tissue (, os osseum)When middle, during holing, form the hole with wider inner diameter d 1 (d1 > d2 > d3), then by fixator100 are inserted in hole, therefore prevent from producing excessive insertion during the process of placing fixator 100Moment of torsion, and fixator 100 can be stably fixed in alveolar bone.
Especially, because os osseum has the bone tissue harder than the bone tissue of cartilage or normal bone, soMake in the time contacting with alveolar bone, to occupy less area when fixator, fixator also still can be stablizedBe fixed in the user's that will operate thereon, there is hard bone tissue alveolar bone.
Operator, by inserting fixator by basic theories, is still not easy to determine exactly bone groupKnit, and problem occurs continually, that is, although be that hard bone tissue forms the hole with small size,Although or be that soft bone tissue but forms the hole with wide area.
That is, as shown in FIG. 4, in the time that bone tissue is determined exactly before fixator inserts, canSo that the moment of torsion being used in suitable torque range inserts fixator, and therefore, can there is not thisThe problem of sample, the alveolar bone and the surrounding bone that insert wherein fixator are damaged. But, when bone groupKnit while accurately not determined, above problem occurs.
Particularly, when be confirmed as due to bone tissue than actual bone tissue weaker form undersizedWhen boring, insert moment of torsion and increase sharply. In this case, in the process that fixator is inserted, insertEnter moment of torsion towards periphery bone tissue apply excessive stress, therefore damage surrounding bone and cause bone to absorb again.
In addition, when be confirmed as thering is wide area than firmer formation of actual bone tissue due to bone tissueBoring time, insert a little less than moment of torsion, and therefore, in the process that fixator is inserted, insert whereinThe surrounding bone that enters fixator is not damaged. But fixator can not stably be fixed, because fixingContact area between device and surrounding bone tissue is narrow. , so because surrounding bone has soft tissue admittedlyA little less than determining power, but because the contact area between fixator and surrounding bone tissue is narrow, so fixator is notCan firmly and stably be fixed.
Summary of the invention
Technical problem
The disclosure provides such planting body fixator, wherein the extruding of surrounding bone (interference) amountNot affected by the size of preformed boring or the bone tissue of insertion.
Technical scheme
According to an aspect of the present invention, provide a kind of planting body fixator, it is inserted into alveolar boneIn with support artificial tooth, described planting body fixator comprises: vertically extending body; With with spiral formThe screw portion being vertically wound around in the outer surface of described body, wherein, described screw portion comprises:Multiple; Multiple crests, described multiple crests are in vertical direction each other by described separately; And connectThe slope that meets described crest and described, described slope comprises: upslope face, described upslopeFace is inclined upwardly to the center of described body from a crest; Domatic with declivity, described declivity domatic fromA described crest is downward-sloping to the center of described body, and is connected to the institute of a described crestState upslope face and the described declivity interior angle between domatic and be equal to or less than 30 degree.
Described interior angle can be in the scope of 10 to 30 degree.
When the perpendicular separation between adjacent crest is P and the vertical width of each crest while being C, C/PCan be below 0.1.
C/P can be in 0.01 to 0.1 scope.
When the crest diameter of the screw portion (crewpart) being formed by crest is D1 and between adjacent crestWhen perpendicular separation is P, P/D1 can be more than 0.2.
P/D1 can be in 0.2 to 1.0 scope.
When the crest diameter of the screw portion being formed by crest is D1 and the root of the screw portion that formed by root is straightWhen footpath is D2, D2/D1 can be below 0.77.
D2/D1 can be in 0.1 to 0.77 scope.
Advantageous effects
According to planting body fixator of the present invention, even do not determined exactly or hole when bone tissueWhen size is not correctly selected and after boring, fixator inserted, do not produce moment of torsion(over-torque), or initial bed knife is not not enough, and can obtain suitable insertion and turn roundSquare.
Brief description of the drawings
Fig. 1 is such view, and it shows that wherein planting body fixator is inserted into and has soft bone groupState in the alveolar bone of knitting.
Fig. 2 is such view, and it shows that wherein planting body fixator is inserted into and has normal boneState in the alveolar bone of tissue.
Fig. 3 is such view, and it shows that wherein planting body fixator is inserted into and has hard bone groupState in the alveolar bone of knitting.
Fig. 4 is such view, and it shows the variation of insertion moment of torsion based on bone tissue.
Fig. 5 is such view, and its demonstration is fixed according to the planting body of one embodiment of the inventionDevice.
Fig. 6 is comparison diagram, and it shows the alveolar bone of screw thread form based on the present invention and correlation techniqueAmount of compression.
Detailed description of the invention
Hereinafter, describe embodiment of the present invention in detail with reference to accompanying drawing.
With reference to figure 6, are such plantations according to the planting body fixator of one embodiment of the inventionBody fixator, it is inserted in alveolar bone to support artificial tooth, and comprises body 20 and screw portion30。
Body 20 is vertically extending, and entirety has cylindricality. Body 20 can by human body withoutEvil and the material that is easy to merge with the bone tissue of alveolar bone are made as titanium, still can use any toolThere is the material of similar characteristic, and be not limited to this.
Body 20 can be made into like this: its diameter reduces gradually from upper end to lower end, and indentCutting part (not shown) can be arranged on body 20 belows so that when by planting body fixator 10While being placed in alveolar bone, can easily cut surrounding bone tissue.
Screw portion 30 is vertically wound around in the outer surface of body 20 with spiral form, and spiral shellThe cross section of silk portion 30 can approximate trapezoid.
Screw portion 30 comprises multiple 32; Multiple crests 31, multiple crests 31 in vertical directionSeparated by root 32 each other; And the slope 33 of connection crest 31 and root 32.
In addition, slope 33 comprises: upslope face 331, upslope face 331 is from a crest 31Center to described body is inclined upwardly; Domatic 332 with declivity, declivity domatic 332 is from described oneCrest 31 is downward-sloping to the center of described body. Upslope face 331 and declivity domatic 332 successivelyBe connected to crest 31.
Herein, the interior angle being connected between upslope face 331 and the declivity domatic 332 of crest 31 canTo be equal to or less than 30 degree. Particularly, described interior angle can be in the scope of 10 to 30 degree.
In this case, when interior angle is greater than 30 while spending, the sensitiveness based on bone tissue increases, becauseIn the process that planting body fixator 10 is inserted into alveolar bone, moment of torsion is exceedingly applied to alveolar bone.Equally, when interior angle is less than 10 while spending, cutting force reduces, and has because screw portion 30 is in close proximity toQuadrangle shape. , there is sharp shape according to the screw portion 30 of one embodiment of the inventionCross section, and therefore because planting body fixator 10 is inserted in the process of alveolar boneThe negative thread forming in bone around with little moment of torsion, bone sensitiveness can be weakened.
When the perpendicular separation of 31 of adjacent crests is P and the vertical width of each crest 31 while being C,C/P can be below 0.1, and preferably, can be in 0.01 to 0.1 scope. Work as C/PBe greater than at 0.1 o'clock, this is not preferred, because the width of each crest 31 is relatively large, and consequence isThe user's who operates on it bone sensitiveness increases. In the time that C/P is less than 0.01, this is not excellentChoosing, because the interval between adjacent thread is greater than the width of each crest 31, and therefore plantationBody fixator is not easy to be inserted into.
When the crest diameter of the screw portion 30 being formed by crest 31 is D1 and between adjacent crest 31When perpendicular separation is P, P/D1 can be more than 0.2, and preferably, can be 0.2 to 1.0Scope in.
In the time that P/D1 is less than 0.2, this is not preferred, because the interval between adjacent thread and diameter phaseThan very little, and insertion moment of torsion becomes undue strong. In the time that P/D1 is greater than 1.0, this is not preferred,Because the interval between adjacent thread is wide and therefore the insertion force of planting body fixator weaken.
In addition, when the crest diameter of the screw portion 30 being formed by crest 31 is D1 and being formed by root 32The root diameter of screw portion 30 while being D2, D2/D1 can be below 0.77, and preferably,Can be in 0.1 to 0.77 scope.
In this case, in the time that D2/D1 is greater than 0.77, this is not preferred, because crest 31 HesInterval between root 32 is narrow, and therefore torque sensitivity is low. In the time that D2/D1 is less than 0.1, thisNot preferred, because the interval between crest 31 and root 32 is for inserting planting body fixatorWide, and therefore the bulk strength of screw portion 30 is weakened or screw portion 30 becomes easily and breaks.
In Fig. 6, the screw thread form of demonstration based on correlation technique and one embodiment of the inventionSquish area. First, having in the cartilage of weak bone tissue, at the face being inserted in bone tissueLong-pending aspect, the insertion area A1 of correlation technique is less than insertion area A2 of the present invention. Equally, at toolHave in the normal bone of comparing relative large bone tissue with cartilage, the insertion area B1 of correlation technique is less thanInsertion area B2 of the present invention. Equally, compare relative hard bone group with normal bone with cartilage havingIn the os osseum of knitting, the insertion area C1 of correlation technique is less than insertion area C2 of the present invention. As above instituteState, visible, because compared with correlation technique time, planting body fixator 10 is inserted in bone tissueArea little, so user's the application of the invention that will operate thereon can keep relativeLow bone sensitiveness. In addition, the surface of bone of insertion is long-pending little, and therefore works as the present invention and correlation techniqueRelatively time, for cartilage, normal bone and os osseum, wherein insert the long-pending size of surface of bone of planting bodyDifference is little, and for cartilage, normal bone and os osseum, total variation of required insertion moment of torsion is little.
As mentioned above, according in the planting body fixator of one embodiment of the invention, screw portionThere is sharp shape, and therefore, even do not check exactly bone tissue or mistakenly as operatorSelect the size of boring and after boring, inserted fixator, not produced moment of torsion, or initially solidIt is not inadequate determining power, and can obtain suitable insertion moment of torsion.
Although shown especially according to its exemplary and described the present invention, abilityTerritory those of ordinary skill will be understood, do not deviate from the spirit of the present invention that limited by following claim andIn the situation of scope, can make therein the change of various ways and details.
Claims (5)
1. a planting body fixator, described planting body fixator is inserted in alveolar bone to support vacationTooth, described planting body fixator comprises:
Vertically extending body; With
The screw portion being vertically wound around in the outer surface of described body with spiral form,
Wherein,
Described screw portion comprises: Duo Gegen; Multiple crests, described multiple crests in vertical direction thatThis by described separately; With the slope that is connected described crest and described,
Described slope comprises: upslope face, described upslope face is from a crest to described bodyCenter is inclined upwardly; Domatic with declivity, described declivity is domatic from a described crest to described bodyCenter is downward-sloping, and
Being connected to the described upslope face of a described crest and the described declivity interior angle between domatic existsIn the scope of 10 to 30 degree,
Wherein when the crest diameter of the described screw portion that be formed by described multiple crests is D1 and by describedWhen the root diameter of the described screw portion that root forms is D2, D2/D1 is in 0.1 to 0.77 scope.
2. planting body fixator according to claim 1, wherein vertical between the adjacent crestBe spaced apart P and the vertical width of each screw thread of described multiple crests while being C, C/P is below 0.1.
3. planting body fixator according to claim 2, wherein C/P is at 0.01 to 0.1 modelIn enclosing.
4. planting body fixator according to claim 1, wherein vertical between the adjacent crestWhile being spaced apart P, P/D1 is more than 0.2.
5. planting body fixator according to claim 4, wherein P/D1 is at 0.2 to 1.0 modelIn enclosing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110012465A KR101144933B1 (en) | 2011-02-11 | 2011-02-11 | Implant fixture |
| KR10-2011-0012465 | 2011-02-11 | ||
| PCT/KR2012/000875 WO2012108659A2 (en) | 2011-02-11 | 2012-02-07 | Implant fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103379877A CN103379877A (en) | 2013-10-30 |
| CN103379877B true CN103379877B (en) | 2016-05-04 |
Family
ID=46271902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280008572.3A Active CN103379877B (en) | 2011-02-11 | 2012-02-07 | Planting body fixator |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101144933B1 (en) |
| CN (1) | CN103379877B (en) |
| WO (1) | WO2012108659A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105796194A (en) * | 2014-12-29 | 2016-07-27 | 上海新世纪齿科材料有限公司 | Oral implant |
| KR101586082B1 (en) | 2015-08-03 | 2016-01-15 | 왕제원 | Dental implant fixture |
| KR102055821B1 (en) | 2017-09-18 | 2019-12-16 | 오스템임플란트 주식회사 | A dental implant assembly and a method for manufacturing the same |
| KR102045331B1 (en) | 2018-02-27 | 2019-11-15 | 신대건 | Method of calculating and applying implant placement value |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541629A (en) * | 2003-11-04 | 2004-11-03 | 中国人民解放军第三军医大学第一附属 | Fixed bridge type planted tooth without corona sheath and its production method |
| CN1688263A (en) * | 2002-08-23 | 2005-10-26 | 伍德韦尔丁公司 | Implant for implanting in bone tissue or in bone tissue supplemented with bone substitute material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100817642B1 (en) * | 2006-06-16 | 2008-03-27 | 허영구 | Implant |
| KR101015193B1 (en) * | 2009-01-23 | 2011-02-18 | 주식회사 메가젠임플란트 | Fixture of Dental Implant |
| KR101092310B1 (en) * | 2009-03-05 | 2011-12-09 | 주식회사 메가젠임플란트 | Dental Implant Fixture |
| KR101092312B1 (en) * | 2009-06-19 | 2011-12-09 | 주식회사 메가젠임플란트 | Fixture of Dental Implant |
-
2011
- 2011-02-11 KR KR1020110012465A patent/KR101144933B1/en active IP Right Grant
-
2012
- 2012-02-07 WO PCT/KR2012/000875 patent/WO2012108659A2/en active Application Filing
- 2012-02-07 CN CN201280008572.3A patent/CN103379877B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1688263A (en) * | 2002-08-23 | 2005-10-26 | 伍德韦尔丁公司 | Implant for implanting in bone tissue or in bone tissue supplemented with bone substitute material |
| CN1541629A (en) * | 2003-11-04 | 2004-11-03 | 中国人民解放军第三军医大学第一附属 | Fixed bridge type planted tooth without corona sheath and its production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103379877A (en) | 2013-10-30 |
| KR101144933B1 (en) | 2012-05-11 |
| WO2012108659A3 (en) | 2012-10-26 |
| WO2012108659A2 (en) | 2012-08-16 |
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