CN201192385Y - Artificial tooth root - Google Patents
Artificial tooth root Download PDFInfo
- Publication number
- CN201192385Y CN201192385Y CNU2008201074411U CN200820107441U CN201192385Y CN 201192385 Y CN201192385 Y CN 201192385Y CN U2008201074411 U CNU2008201074411 U CN U2008201074411U CN 200820107441 U CN200820107441 U CN 200820107441U CN 201192385 Y CN201192385 Y CN 201192385Y
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- external
- piece
- artificial tooth
- tooth root
- tapering
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- Expired - Fee Related
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Abstract
The utility model relates to an artificial tooth root structure. A tapering connector abuts against the inner part of an external connector and passes out of the external connector to connect with an outer screwed element, wherein the connected, the external screwed element and the external connector are connected in a tapering manner via screw thread, mortise and tenon. The connection interface has a large contact area, so as to improve connection rigidity and disperse contact stress, resulting in low liability of breakage and slippage. Through the specific allowance of the screw thread via which the connected is connected with the external connector, the connector is tightly and elastically locked with the external connector, so as to reduce the lateral deviation of the outer connector and reduce the probability of stress concentration and fatigue fracture of the connector. The cloverleaf-shaped connection section of the external screwed element is connected with the external connector via a made die and a female die, so as to improve torsion resistance and bending resistance, optimize connection strength, and compensate strength change due to different selection of a metal or a ceramic material.
Description
Technical field
This utility model relates to dental field, refers to a kind of artificial tooth root structure especially.
Background technology
About the document of artificial tooth root, as " structure-improved of artificial tooth root ", " implant structure of artificial tooth root " etc., and known artificial tooth root sees also Fig. 5 to shown in Figure 7, and it comprises:
One connecting piece 50, this connecting piece 50 include a rounded nose 52 of an elongated shaft 51 and phase link rod part 51, bring out before this bar portion 51 and are provided with external screw thread 511, and these head 52 free end faces have a hexagon ring 53 (as shown in Figure 7);
One external piece 60, this external piece 60 is provided with a through hole 61, and external piece 60 1 ends are positioned at through hole 61 peripheries and are provided with a slotted eye, is provided with hexagon ring 62 in this slotted eye; In addition through hole 61 can be penetrated by an end for connecting piece 50 bar portions 51, and makes bar portion 51 pass through hole 61 other ends, and allow connecting piece 50 heads 52 and external piece 60 end faces form local against;
One external thread piece 70, these external thread piece 70 1 end faces are provided with an inner bolt hole 71, and this inner bolt hole 71 can screw togather with bar portion 51 external screw threads 511 that pass external piece 60 through holes 61.It is chimeric with the hexagon ring 62 of external piece 60 that external thread piece 70 end faces outwards are convexly equipped with hexagonal seat 72.
When manually planting tooth, tie up to the artificial tooth root of part or complete mouthful of edentulous region implant screw shape, on artificial tooth root, make artificial tooth then.
Yet the known artificial tooth root of this kind has following shortcoming;
One, connecting piece 50 heads 52 only have local the contact with external piece 60, cause near the stress concentration that takes place in hexagon ring 53 bottoms of connecting piece 50 heads 52 easily, and may cause the fatigue fracture of connecting piece 50 heads 52, in addition also can be too small because of contact area, and make connecting piece 50 heads 52 and the contact material of external piece 60 deform, and have influence on both in conjunction with rigidity, even get loose.
Two, the middle part overall dimensions of connecting piece 50 bar portions 51 are thinner, and complete covering property contact area is not arranged with external piece 60, therefore may cause external piece 60 that bigger side side-play amount and slippage probability are arranged, and this laterally offset amount, to directly be born by external piece 60 bottoms and external thread piece 70 chimeric draw-in grooves, and the destruction that may cause this place's material-structure.
Three, connecting piece 50 bar portions 51 only engage with external thread piece 70 at external screw thread 511 places, there is no suitable supportive coating at external thread piece 70 inner bolt holes, 71 places and connecting piece 50, so cause the stress concentration and the fatigue fracture at external screw thread 511 positions of connecting piece 50 bar portions 51 easily; And connecting piece 50 is in case after fatigue fracture takes place in external screw thread 511 positions, the connecting piece 50 that is not easy breaking at external thread piece 70 head inner bolt holes 71 is removed, and may cause and the alveolar bone that coats external thread piece 70 must be destroyed, and implant the situation of external thread piece 70 again.The hardship that this not only causes the patient need stand repeatedly operation simultaneously also might be because of the bone structure degradation of alveolar bone, and improves bad that postoperative bone integrates.
Four, external piece 60 is little with connecting piece 50 contact surfaces, makes that the side side-play amount is bigger, easily causes connecting piece 50 fractures and interface slippage; And slotted eye is provided with hexagon ring 62, the high and cost costliness of processing difficulties degree.
Because above-mentioned known artificial tooth root has its shortcoming, so this utility model people is by the research and development of being engaged in related industry for many years and manufacturing experience, inquired into research at the problem that above-mentioned existing artificial tooth root faced, and the method for positive searching solution, after repeatedly testing and improveing, create a kind of artificial tooth root structure that can improve above-mentioned disappearance really finally.
Summary of the invention
This utility model purpose is, a kind of artificial tooth root structure is provided, and to solve the technical problem point of above-mentioned traditional structure, increases its structural rigidity, disperses its contact stress, make connecting piece more not easy fracture with get loose, and reach best bond strength.
The technical characterstic of dealing with problems: a kind of artificial tooth root structure, it is characterized in that, comprising:
One external piece, this external piece one end is provided with the groove seat or the slotted eye of a blossom type, and external piece is positioned at the groove seat or slotted eye is held in addition, is provided with perforation inwardly, and perforation is provided with a gradually-reducing shape tapered hole towards groove seat or slotted eye direction, and tapered hole is penetrated with a through hole towards groove seat or slotted eye again;
One connecting piece, this connecting piece comprises a fixed part, this fixed part one end face is concaved with an instrument boarding hole, this fixed part other end extends first tapering of a convergent taper, a cylindrical portion is extended in first tapering, cut on the cylindrical portion and be provided with several planes, second tapering that other cylindrical portion is extended a convergent taper, an external thread part is extended in second tapering, external thread part is penetrated by external piece, first tapering and tapered hole abut against mutually, and cylindrical portion and external thread part then pass the described through hole of external piece and described groove seat or slotted eye;
One external thread piece, this external thread piece includes a cervical region, and cervical region one end face is provided with one outwardly can insert the blossom type joint portion of external piece groove seat or slotted eye, and cervical region differs from the end in addition of groove seat, is provided with the external screw teeth portion that a tool is counted thread; Wherein, the joint portion end face is towards external thread piece inside, be provided with one and can supply the ccontaining endoporus of connecting piece cylindrical portion, this endoporus be provided with inwardly a convergent tapering and can for second tapering against cone hole part, this cone hole part is provided with an internal thread hole that can screw togather for the connecting piece external thread part more inwardly.
Wherein, the instrument boarding hole of this connecting piece is a hexagon ring.
Wherein, the instrument boarding hole of this connecting piece is in order to increase the plum blossom hole of torsional strength.
Wherein, the blossom type joint portion of this external thread part is in order to cooperate the protuberance or the shrinkage pool of external piece slotted eye or groove seat.
Wherein, cut on the cylindrical portion of connecting piece and be provided with two planes, Siping City's face or six planes.
Wherein, exterior has the shiny surface that polishing forms.
Wherein, the thread external diameter of this external screw teeth portion has tapering.
Wherein, the surface, thread depths of this external screw teeth portion has surface roughening and handle to form and to be beneficial to and the firm bonded surface of osteocyte.
Wherein, this external screw teeth portion is gradually blunt toward the thread of cervical region direction.
Wherein, the free end of this external screw teeth portion is provided with the spiral helicine self tapping breach of number.
The effect of contrast prior art: a kind of artificial tooth root structure provided by the utility model has following advantage:
One, connecting piece of the present utility model is provided with first tapering, the two sections taperings in second tapering, and the contact surface of connecting piece and external thread piece and external piece is enlarged, and increases its structural rigidity, disperses its contact stress, make connecting piece more not easy fracture with get loose.
Two, this utility model external thread piece cone hole part can produce the taper design of complete coating with connecting piece, and the side side-play amount of connecting piece is reduced, and also lowers that stress concentration takes place connecting piece herein, interface gets loose and the probability of fatigue fracture simultaneously.
Three, the joint portion of this utility model external thread piece is designed for blossom type, after the groove seat of external piece combines, can make the antitorque and bending resistance of planting body and connecting piece reach best bond strength.
Four, connecting piece fixed part one end face of the present utility model is the instrument boarding hole, can be hexagon ring or plum blossom hole pattern, can increase and external thread piece and the external piece torsional strength when sealed.
The technology that relevant this utility model adopted, means and effect thereof after lifting a preferred embodiment now and cooperating graphic being described in more detail in, are believed the above-mentioned purpose of this utility model, structure and feature, when can by one deeply and concrete understanding.
Description of drawings
Fig. 1: be three-dimensional appearance sketch map of the present utility model.
Fig. 2: be perspective exploded view of the present utility model.
Fig. 3: be generalized section of the present utility model.
Fig. 4: be this utility model embodiment sketch map.
Fig. 5: be traditional structure three-dimensional appearance sketch map.
Fig. 6: the perspective exploded view that is traditional structure.
Fig. 7: the generalized section that is traditional structure.
The specific embodiment
At first, see also Fig. 1 to shown in Figure 4, a kind of artificial tooth root structure of this utility model, it comprises:
One external piece 10, these external piece 10 1 ends are provided with the groove seat or the slotted eye 11 of a blossom type, external piece 10 is positioned at the groove seat or slotted eye 11 is held in addition, be provided with 12 (as shown in Figure 3) of boring a hole inwardly, perforation 12 is towards groove seat or slotted eye 11 directions, be provided with a gradually-reducing shape tapered hole 13, tapered hole 13 is penetrated with a through hole 14 towards groove seat or slotted eye 11 again;
One connecting piece 20, this connecting piece 20 comprises a fixed part 21, these fixed part 21 1 end faces are concaved with an instrument boarding hole, this instrument boarding hole can be hexagon ring or plum blossom hole 22 (as shown in Figure 3) plum blossom hole can increase torsional strength, these fixed part 21 other ends extend first tapering 23 of a convergent taper, a cylindrical portion 24 is extended in first tapering 23, cut on the cylindrical portion 24 and be provided with several planes 241, plane 241 can be two planes, Siping City's face or six planes, second tapering 25 that other cylindrical portion 24 is extended a convergent taper, an external thread part 26 is extended in second tapering 25, external thread part 26 must be penetrated by external piece 10 perforation 12, the tapering 23 of winning is abutted against mutually with tapered hole 13, and cylindrical portion 24 then passes through hole 14 and groove seat or slotted eye 11 with external thread part 26;
One external thread piece 30, this external thread piece 30 includes a cervical region 31, cervical region 31 1 end faces, be provided with 32 these blossom type joint portions 32, blossom type joint portion that just can insert external piece 10 groove seats or slotted eye 11 outwardly and be the protuberance of cooperation slotted eye or the shrinkage pool of mating groove seat, cervical region 31 differs from the end in addition of blossom type joint portion 32, is provided with the external screw teeth portion 33 that a tool is counted thread;
Wherein cervical region 31 outer surfaces can carry out polishing, to form a shiny surface;
Wherein joint portion 32 can be handled with suitable material surface, and for example: Ti-alloy anode is handled with the mode that pottery is coated with glaze, carries out the color-identifying management, to distinguish size.And joint portion 32 end faces, towards cervical region 31 and external screw teeth portion 33 directions, be provided with an endoporus 322 (as shown in Figure 3), endoporus 322 can be ccontaining for connecting piece 20 cylindrical portion 24, this endoporus 322 is provided with the cone hole part 3221 of a convergent tapering inwardly, cone hole part 3221 just can for second tapering 25 against, this cone hole part 3221 is provided with an internal thread hole 323 more inwardly, internal thread hole 323 can screw togather for the external thread part 26 of connecting piece 20;
The thread of the external thread part 26 of connecting piece with the screw thread of external thread piece one internal thread hole 323, has the specially dimensional tolerance of design to each other in addition, so that connecting piece can have the effect of elasticity locking more closely with external thread piece.
Wherein the thread external diameter of this external screw teeth portion 33 has tapering, and the surface, thread depths of external screw teeth portion 33, can carry out surface roughening and handle, with form one can with osteocyte firm bonded surperficial 331 (as shown in Figure 3); The thread of the past more cervical region 31 of spiro tooth part 33 is blunt more in addition, and the free end of external screw teeth portion 33 is provided with the spiral helicine self tapping breach 332 of number.
By above-mentioned design, see also shown in Figure 4ly, when manually planting tooth, external thread piece 30 is implanted locking in local or complete mouthful edentulous region, on the external piece 10 of artificial tooth root, make artificial tooth 40 then.
From the above mentioned, first tapering 23 of the tapered hole of external piece of the present utility model 10 inside 13 and connecting piece 20, its contact surface has the exterior design characteristic of complete applying, strengthening the bond strength of both interfaces, and reduces the laterally offset amount of external piece 10.
In addition, connecting piece 20 of the present utility model is provided with first tapering 23, the 25 two sections taperings in second tapering, the connecting piece 20 and the contact surface of external thread piece 30 and external piece 10 are enlarged, increase its structural rigidity, disperse its contact stress, make connecting piece 20 more not easy fracture with get loose.The cylindrical portion 24 of the middle part of connecting piece 20 has several smooth geometry parts again, can provide to take place after the fatigue fracture, utilizes operating theater instruments to remove to break at connecting piece 20 parts of external thread piece 30 internal thread holes 323.
The shiny surface of the cervical region 31 of this utility model external thread piece 30 can stop adhering to and avoiding bacterial multiplication of dental plaque.
The internal thread hole 323 of this utility model external thread piece 30 can produce with connecting piece 20 has the taper design of complete coating, and the side side-play amount of connecting piece 20 is reduced, and also lowers the probability that stress concentration and fatigue fracture take place connecting piece 20 herein simultaneously.
The joint portion 32 of this utility model external thread piece 30 is for blossom type designs, and after the groove seat of external piece 10 or slotted eye 11 combine, can make and plant body and reach the bond strength of the best with bearing multiple antitorque and bending resistance.
The thread of the past more cervical region 31 of this utility model external thread piece 30 is blunt more, can make the gmatjpdumamics of planting body reach spongy bone effectively than the bottom, avoid the gmatjpdumamics concentrations in the cortical bone hone lamella, help to keep the degree of stability of planting body and surrounding bone integration, reduce that cortical bone takes place that fine bone breaks or bone is integrated and degenerated, and cause the damaged generation of marginality bone.
The design of this utility model external thread piece 30 thread external diameter tool taperings meets the external form of nature root of the tooth, and the root of the tooth that can reduce maxillary labial teeth district and adjoining teeth such as gathers at problem, and can reduce the torque value when implanting.
The thread of the external thread part 26 of this utility model connecting piece with the screw thread of external thread piece 30 1 internal thread holes 323, has the specially dimensional tolerance of design to each other, so that connecting piece 20 can have the effect of elasticity locking more closely with external thread piece 30.
The blossom type groove seat of external thread piece 30 and external piece 10 or slotted eye 11, blossom type joint portion 32, the combination of feature die each other, the different caused intensity of selecting with reinforcement of weld or ceramic material changes.
The spiral helicine self tapping breach 332 of this utility model external thread piece 30 tools can provide best cutting guide groove and implant stability, and self tapping breach 332 guide groove inside also can be used as the container of bone bits simultaneously, and it is firm to promote that bone is integrated.
Claims (10)
1. an artificial tooth root structure is characterized in that, comprising:
One external piece, this external piece one end is provided with the groove seat or the slotted eye of a blossom type, and external piece is positioned at the groove seat or slotted eye is held in addition, is provided with perforation inwardly, and perforation is provided with a gradually-reducing shape tapered hole towards groove seat or slotted eye direction, and tapered hole is penetrated with a through hole towards groove seat or slotted eye again;
One connecting piece, this connecting piece comprises a fixed part, this fixed part one end face is concaved with an instrument boarding hole, this fixed part other end extends first tapering of a convergent taper, a cylindrical portion is extended in first tapering, cut on the cylindrical portion and be provided with several planes, second tapering that other cylindrical portion is extended a convergent taper, an external thread part is extended in second tapering, external thread part is penetrated by external piece, first tapering and tapered hole abut against mutually, and cylindrical portion and external thread part then pass the described through hole of external piece and described groove seat or slotted eye;
One external thread piece, this external thread piece includes a cervical region, and cervical region one end face is provided with one outwardly can insert the blossom type joint portion of external piece groove seat or slotted eye, and cervical region differs from the end in addition of groove seat, is provided with the external screw teeth portion that a tool is counted thread; Wherein, the joint portion end face is towards external thread piece inside, be provided with one and can supply the ccontaining endoporus of connecting piece cylindrical portion, this endoporus be provided with inwardly a convergent tapering and can for second tapering against cone hole part, this cone hole part is provided with an internal thread hole that can screw togather for the connecting piece external thread part more inwardly.
2. artificial tooth root structure as claimed in claim 1 is characterized in that, the instrument boarding hole of this connecting piece is a hexagon ring.
3. artificial tooth root structure as claimed in claim 1 is characterized in that, the instrument boarding hole of this connecting piece is in order to increase the plum blossom hole of torsional strength.
4. artificial tooth root structure as claimed in claim 1 is characterized in that, the blossom type joint portion of this external thread part is in order to cooperate the protuberance or the shrinkage pool of external piece slotted eye or groove seat.
5. artificial tooth root structure as claimed in claim 1 is characterized in that, cuts on the cylindrical portion of connecting piece to be provided with two planes, Siping City's face or six planes.
6. artificial tooth root structure as claimed in claim 1 is characterized in that, exterior has the shiny surface that polishing forms.
7. artificial tooth root structure as claimed in claim 1 is characterized in that, the thread external diameter of this external screw teeth portion has tapering.
8. artificial tooth root structure as claimed in claim 1 is characterized in that, the surface, thread depths of this external screw teeth portion has surface roughening processing formation and is beneficial to and the firm bonded surface of osteocyte.
9. artificial tooth root structure as claimed in claim 1 is characterized in that, this external screw teeth portion is gradually blunt toward the thread of cervical region direction.
10. artificial tooth root structure as claimed in claim 1 is characterized in that, the free end of this external screw teeth portion is provided with the spiral helicine self tapping breach of number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201074411U CN201192385Y (en) | 2008-03-27 | 2008-03-27 | Artificial tooth root |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201074411U CN201192385Y (en) | 2008-03-27 | 2008-03-27 | Artificial tooth root |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201192385Y true CN201192385Y (en) | 2009-02-11 |
Family
ID=40391932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201074411U Expired - Fee Related CN201192385Y (en) | 2008-03-27 | 2008-03-27 | Artificial tooth root |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201192385Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102475578A (en) * | 2010-11-26 | 2012-05-30 | 阎京如 | Dental artificial implant and production method thereof |
| CN102596094A (en) * | 2009-10-01 | 2012-07-18 | 奥那吉路易吉&奥那吉朱塞佩和安吉洛公司 | Dental implant having improved osseointegration characteristics |
| WO2014075256A1 (en) * | 2012-11-15 | 2014-05-22 | Ho Chih-Chung | Dental implant with first internal thread and second internal thread |
| CN106559981A (en) * | 2015-07-23 | 2017-04-05 | 雅斯贝奥泰克有限公司 | Base station and base station assembly |
| CN106667597A (en) * | 2016-12-27 | 2017-05-17 | 中国人民解放军第三军医大学第附属医院 | Metal-ceramic oral implant |
| CN106667598A (en) * | 2016-12-27 | 2017-05-17 | 中国人民解放军第三军医大学第附属医院 | Metal reinforced ceramic oral planting body |
| CN103027756B (en) * | 2011-09-30 | 2017-09-22 | 威廉·洪 | Dental artificial neck inclined-plane and step type implant |
| WO2021052464A1 (en) * | 2019-09-19 | 2021-03-25 | 张家昌 | Dental implant kit |
| WO2022128343A1 (en) * | 2020-12-17 | 2022-06-23 | Institut Straumann Ag | Ceramic dental implant |
-
2008
- 2008-03-27 CN CNU2008201074411U patent/CN201192385Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102596094A (en) * | 2009-10-01 | 2012-07-18 | 奥那吉路易吉&奥那吉朱塞佩和安吉洛公司 | Dental implant having improved osseointegration characteristics |
| CN102596094B (en) * | 2009-10-01 | 2015-09-02 | 奥那吉路易吉奥那吉朱塞佩和安吉洛公司 | There is the dental implant of the synosteosis characteristic of improvement |
| CN102475578B (en) * | 2010-11-26 | 2014-07-09 | 阎京如 | Production method of dental artificial implant |
| CN102475578A (en) * | 2010-11-26 | 2012-05-30 | 阎京如 | Dental artificial implant and production method thereof |
| CN103027756B (en) * | 2011-09-30 | 2017-09-22 | 威廉·洪 | Dental artificial neck inclined-plane and step type implant |
| WO2014075256A1 (en) * | 2012-11-15 | 2014-05-22 | Ho Chih-Chung | Dental implant with first internal thread and second internal thread |
| CN106559981B (en) * | 2015-07-23 | 2019-11-01 | 雅斯贝奥泰克有限公司 | Base station and base station assembly |
| CN106559981A (en) * | 2015-07-23 | 2017-04-05 | 雅斯贝奥泰克有限公司 | Base station and base station assembly |
| CN106667598A (en) * | 2016-12-27 | 2017-05-17 | 中国人民解放军第三军医大学第附属医院 | Metal reinforced ceramic oral planting body |
| CN106667597A (en) * | 2016-12-27 | 2017-05-17 | 中国人民解放军第三军医大学第附属医院 | Metal-ceramic oral implant |
| CN106667598B (en) * | 2016-12-27 | 2020-01-10 | 中国人民解放军第三军医大学第一附属医院 | Metal reinforced ceramic oral implant |
| WO2021052464A1 (en) * | 2019-09-19 | 2021-03-25 | 张家昌 | Dental implant kit |
| WO2022128343A1 (en) * | 2020-12-17 | 2022-06-23 | Institut Straumann Ag | Ceramic dental implant |
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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: 20090211 Termination date: 20140327 |