CN101516289A - Spider die - Google Patents
Spider die Download PDFInfo
- Publication number
- CN101516289A CN101516289A CNA2007800347689A CN200780034768A CN101516289A CN 101516289 A CN101516289 A CN 101516289A CN A2007800347689 A CNA2007800347689 A CN A2007800347689A CN 200780034768 A CN200780034768 A CN 200780034768A CN 101516289 A CN101516289 A CN 101516289A
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- China
- Prior art keywords
- retention means
- spider die
- cover
- spider
- die according
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/225—Fastening prostheses in the mouth
- A61C13/265—Sliding or snap attachments
- A61C13/2656—Snap attachments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/225—Fastening prostheses in the mouth
- A61C13/275—Fastening prostheses in the mouth removably secured by using bridging bars or rails between residual teeth
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial 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)
Abstract
For the resilient mounting of a spider die (10) onto a dental prosthetic suprastructure on a male spider mold (1), it is proposed to mold at least one retention element (14, 141, 142) onto a sleeve (11), the retention element having a substantially occlusal alignment. The at least one retention element (14, 141, 142) extends across the entire length of the sleeve (11) and has a head (143, 148) having a connecting neck (144, 147) in its cross-section. In this manner, retention undercuts (145, 146) are formed on both sides of the connecting neck. The connecting neck of the at least one retention element is molded at an offset as opposed to the crown line of the sleeve. A spider die is created in this manner, which has an improved retention with an increased retention force at a smaller installation height.
Description
Technical field
The present invention relates to a kind of as described in the preamble according to claim 1, be used for artificial tooth superstructure (dental-prosthetic supra-construction) is fastened on spider die (bar matrix) on the shaft-like male member (bar projection).
Background technology
Spider die is the part of shaft-like attachment (bar attachment), utilizes described shaft-like attachment, and part prosthese (prostheses) or whole prosthese are retained on the lower jaw or the upper jaw in plantation-maintenance mode.This shaft-like attachment comprises shaft-like male member and spider die.Shaft-like male member is accurately machined anchoring piece, and it is included between the implantation body (implants) and extends and block the cross bar (crosspiece) of described implantation body at oral area each other.This whole cross bar that is used to be fastened on the clamp device in the described implantation body that has is called shaft-like male member.
Spider die is incorporated on the removable section of dental prosthesis.Spider die often is called rod-shaped slide (bar rider), and spider die comprises the cover that is provided with suitable retention means (retention element), so that be implemented in the anchoring in the artificial tooth superstructure.
In the superstructure in modern times, should be provided with metal support structure, fixing has the real superstructure that is made of plastics on metal support structure.Described supporting construction is called mold spare (cast model).Described mold spare comprises the opening that is used for described mold spare is connected to plastic construction, and described opening is called so-called polymerization window (polymerisation window).
Under the main situation of paying close attention between spider die and the shaft-like male member about removably connecting of research and development (often being to make) itself by odontologist, ignored the anchoring problem of spider die in the artificial tooth superstructure, because this problem occurs over just dental laboratory basically, be the manufacturing of artificial tooth superstructure and dental laboratory self pays close attention to.Yet, in fact when making the artificial tooth superstructure, have been found that the inadequate maintenance power that puts that retention means only can provide (accommodate) to act on spider die, because consider to make retention means keep minimumly for design.The structure of spider die is usually designed to a kind of like this cover, promptly, the cross section of cover takes the shape of the letter U at least substantially and in fact always has the longitudinal surface that extends in cheek tongue direction along top line (apex line), and the maximum that these longitudinal surfaces are had along cheek tongue direction is extended makes described longitudinal surface be no more than the width of described cover.This is necessary, because if not like this, the wall thickness of artificial tooth superstructure or tooth structure will be too thin, perhaps can reach outside it.
This shaft-like attachment is by Hans doctor Dolder research and development, and proposes a kind of solution that fixing is not the artificial tooth that only supports in simple gums mode that is used for.As described above, verified its of Dolder bar will be in fashion for many years.For example, further developing of Dolder bar has been shown in EP 1192916, wherein with on recessed the male member that is fastened to the effect of playing bar but do not have an effect with the elastic mechanical retention means, but be suitable for described bar in shape and have an effect by the permanent magnet that cover surrounds.In addition, adopt this scheme, these retention means form along cheek tongue direction (manner), and form the shape along the integrated elongated bead of side direction (lug).At this, the anchoring of described artificial tooth superstructure is also just preliminary to be realized.
The spider die of knowing from DE-3009758A comprises the cover with a plurality of pins, and these pins are formed on and describedly put and extend along last lower tooth interlock direction.Obtainable thus maintenance power is minimum.
According to the conventional scheme of DE-29609304U, wherein, spider die forms the cover that has a plurality of alar parts on the contrary, and these alar parts form along cheek tongue mode.
Diverse is a kind of so shaft-like male member, in fact it be integrally formed on the patient, also have accordingly with described shaft-like male member, form the spider die of the rectangular U-shaped of cross section cover, and described recessed is bonded to each other (mould) together with described male member.Therefore, this scheme according to US 2003/0211444 can not combine with the Dolder bar.
At last, the spider die of knowing from US 4209904 is formed by the slide block on a plurality of Dolder of placing bars, and wherein these slide blocks have cover portion, the short and small protuberance (tab) of lower tooth interlock direction bending on integrally formed edge in the cover portion.This scheme itself is only applicable to not have the superstructure of mold spare, thereby superstructure need not metal reinforcement.If described short and small protuberance is positioned at the position that the jawbone face (pallatinal surface) of tooth extends near described bar very much, then the short and small protuberance of these maintenances must be worn away, and has weakened maintenance thus widely.
Summary of the invention
Therefore, the objective of the invention is to improve the spider die of aforementioned type, so that can increase maintenance power from spider die to the artificial tooth superstructure, can not weaken artificial tooth superstructure accompanying on the spider die simultaneously, perhaps needn't accept other defective of prior art.
Spider die according to claim 1 can achieve this end.The continuous design of described retention means make the Dental Technician can by polishing make described retention means in any position all applicable to given environment, and can not cause cover to be damaged, to cause structure weakened or cause other negative effect.
For the technician of the dental laboratory of making the artificial tooth superstructure, on last lower tooth interlock direction, can obtain obviously bigger space as a rule.Because the mode of the above basically lower tooth interlock of the power of Chan Shenging works in use, however the undercut portion (undercut) that is necessary that a plurality of retention means or at least one retention means are had and departs from lower tooth interlock direction.
Description of drawings
Show a plurality of preferred embodiments of theme of the present invention in the accompanying drawings in a simplified manner, and explain by explanation subsequently.In the accompanying drawings:
Fig. 1 is the axonometric chart that is fastened to two Dolder bars in the implantation body.
First embodiment that Fig. 2 represents spider die is perpendicular to its machine-direction oriented section.
Fig. 3 shows the section of second embodiment.
Fig. 4 shows the partial side view of the spider die that adopts under particular form.
Fig. 5 shows the side view of the special preferred embodiment of the spider die with varying cross-section shaped design.
Fig. 6 shows the axonometric chart of the special preferred embodiment of the spider die with varying cross-section shaped design.
The spider die of the general type that Fig. 7 shows with reduce in scale.
The specific embodiment
Fig. 7 at first is discussed, and wherein conventional spider die illustrates with cross section.Spider die forms the clamping section, utilizes described clamping section that whole prosthese or part prosthese are retained on the shaft-like male member.Therefore, under the state that has inserted, according to Fig. 1, part prosthese or whole prosthese will cover the Dolder bar fully.Therefore, the length of described spider die is farthest corresponding to the length of cross bar or bar 2.Represent actual spider die at this with Reference numeral A.Spider die comprises the elongate sheath B that cross section is curved.Because as mentioned above, this is set on the cross bar 2 of shaft-like male member 1, so this cover also often is called sliding sleeve (ridersleeve).Sliding sleeve B is limited by clamping wall C in both sides along its length.Described clamping wall converges to supporting bow portion.In the zone of described supporting bow portion, formed retention means E.The route of these retention means accurately extends with cheek tongue direction.Because the power of artificial tooth superstructure is extended along last lower tooth interlock direction substantially, thereby this direction itself is not to be important, and that the size of described retention means is only is important.Adopt previous designs, the size of retention means is impossible increase, and this is because the size increase of retention means can cause exceeding two width between the clamping wall.
In Fig. 2, represent with cross section along the orientation of spider die according to a preferred embodiment of the present invention recessed.Represent whole spider die with Reference numeral 10.Described spider die comprises cover or sliding sleeve 11, and said cover comprises the clamping wall 12 that two longitudinal extensions and almost parallel are arranged again.At this, two clamping walls 12 also are to converge to supporting bow portion 13.Must have in the supporting bow portion 13 at least one basically along on the retention means 14 of lower tooth interlock direction orientation.Thus, retention means 14 must form, and at least one undercut portion that departs from lower tooth interlock direction is risen.Because when masticatory movement, act on the power that not only has on the tooth superstructure along last lower tooth interlock direction, and be different from this direction in addition and substantially along the component of cheek tongue directive effect, so, the set-up mode that described at least one retention means 14 is extended along last lower tooth interlock direction substantially is extremely useful, and this is because also can provide these component according to best mode.
In embodiment, show two retention means according to Fig. 2.In fact, first retention means only is orientated along last lower tooth interlock direction, and is represented by Reference numeral 141.This first retention means 141 is extended on the whole length of spider die 10, perhaps extends on the whole length of cover 11.The shape of cross section that first retention means 141 has substantially is: be formed with head 143, and be connected to single part with supporting bow portion 13 on cervical region 144.By means of the cervical region 144 of first retention means, on both sides, form the undercut portion 145 that the power that produces along last lower tooth interlock direction can be provided in the mode (positive fit) of form fit basically.Yet, in the present embodiment, for anchoring better is provided with second retention means 142 by the made anchoring section of founding materials for the treatment of artificial tooth superstructure provided thereon, described second retention means forms in the mode with respect to the first retention means tilt angle alpha.Second retention means along the longitudinal extension that is parallel to spider die 10, equally also is parallel to first retention means 141 in an identical manner.By means of this tilted shape,, below second retention means 142, formed even bigger undercut portion 146 at this.
The continuous design of these retention means makes the Dental Technician to make described retention means be adapted to the situation at any position by polishing, and can not damage described cover, can not weaken described structure and cause or produce other negative effect.
Fig. 3 shows second preferred embodiment of theme of the present invention in the mode identical with Fig. 2.Again, the shown spider die 10 that comprises cover 11 is embedded among the mold spare G, and overlap 11 and also have the clamping wall 12 that extends parallel to each other, as according to the embodiment of Fig. 2, described clamping wall 12 from supporting bow portion 13 towards the end convergent slightly taperedly, adopt the purpose of this mode to be to increase the elastic reaction of clamping wall 12.At this moment, in supporting bow portion 13, be formed with single retention means 14.In addition, this retention means 14 is extended on cover 11 whole length, and this also have head 14 ' and cervical region 14 ".Retention means 14 is substantially along last lower tooth interlock direction orientation, but the embodiment about second retention means 142 is the same as described above, and retention means 14 has the inclination angle along cheek tongue direction.Described inclination angle along cheek tongue direction is depended on the installation site and is determined by dental laboratory.Usually, described installation site is under mounted state, makes retention means 14 be tending towards outwards pointing to towards the cheek direction.If have single retention means, then to compare with modification structures with two retention means that extend parallel to each other in the same manner, this single retention means can design greatlyyer certainly.This inclination angle is used to realize the undercut portion 14 that strengthens substantially " '.The inclination angle of described retention means is chosen between 0 ° to 45 ° usually, but more preferably between 10 ° to 30 °.Yet, if embodiment is the same as described above, have two retention means, so certain retention means can be provided with the inclination angle on the direction of cheek, and another retention means can be provided with the inclination angle on the direction of tongue, and only perhaps also can making in two retention means, a retention means has the inclination angle.Correspondingly, angle [alpha] certainly changes to a great extent.Yet most preferably described angle maximum is no more than 90 °, and preferably, angle [alpha] is between 10 ° to 45 °.In fact, under the situation that adopts design as shown in Figure 2, that have two retention means that extend longitudinally, people will make connection cervical region 144 and 147 have different length, so that being got enough, the head design of retention means greatly also guarantees that simultaneously the material that is used to form the artificial tooth superstructure flows into ideally.
At according to the embodiment of Fig. 2 and according to the embodiment of Fig. 3, the technician of dental laboratory can oneself take further step, so that increase the maintenance effect, also can realize certain form fit on the route of cover simultaneously.This symbolically illustrates in Fig. 6, and the cover 11 that wherein has single retention means 14 illustrates from a side.At this, retention means utilizes that suitable saw is gone into, polishing or rasion and blocked, thereby it separates with undercut portion.This application source is from the cover that has on its whole length the retention means of extending continuously, utilizes this application to form with distad or inboard (medial) undercut edge of tilting to extend.If people make cover 11 in the die casting process, then also can directly form undercut edge 16 on retention means 14 coideals ground from the beginning.Yet,, be preferred so dental laboratory oneself adds the scheme at undercut edge because dental laboratory always can under normal circumstances be adjusted.
The preferred embodiment of spider die 10 has been shown among Fig. 5 and Fig. 6.This embodiment also has the successive extension that the length with shaft-like male member adapts.At this, cover 11 comprises that two are passed through supporting bow portion 13 and clamping wall connected to one another 12.Clamping wall 12 is provided with the thickening part of scalariform, all is combined with to clamp bar 121 so that be increased in the maintenance power of the cover 11 outside the bar 2 on the medial surface of two clamping walls.
In the shape shown here, described head has the those widened sections of extending perpendicular to longitudinal direction, and described thus those widened sections is extended on cheek tongue direction.At this evidently, head 14 ' par 140.For fear of in described superstructure along on produce notch effect under the effect of power of lower tooth interlock direction, par 140 is preferred.More preferably, this par is along extending perpendicular to last lower tooth interlock direction.
The cervical region 14 of retention means 14 " off-centre orientation be correlated with the different routes (course) of the jawbone face of tooth.Yet, head 14 ' the off-centre setting should make described head can on either side, not stretch out the extension of described clamping wall.The cheek tooth surface in the outside vertically extends, and described dental surface then extends towards the cheek direction obliquely along jawbone simultaneously.Thus, in the installation site, retention means 14 is opened from the jawbone sidesway.Therefore, the jawbone surface can be positioned at the left side of Fig. 5.
This setup can a side (usually in the cheek side) go up cover and head 14 ' between form undercut portion, described undercut portion will be littler than the undercut portion of jawbone side, have bigger space thus usually.
Owing to can correctly be adapted to various superstructures, so even under the limited condition in space, described spider die also can make the space obtain good as far as possible utilization and have best anchorage effect simultaneously by means of given shape according to spider die of the present invention.
Reference numerals list
1 shaft-like male member 2 cross bars or bar
3 fastener heads, 4 screwed holes
Recessed of 5 planting body A plates
B cover or sliding sleeve C clamping wall
The D supporting bow E of section retention means
The top line of G mold spare S cover
10 spider dies, 11 covers
12 clamping walls, 13 supporting bow sections
The head of 14 retention means 14 ' single retention means
14 " cervical region 14 of single retention means " ' undercut portions
The undercut portion 16 undercut edges of 15 jawbone sides
121 clamp bar 140 pars
141 first retention means, 142 second retention means
The cervical region of head 144 first retention means of 143 first retention means
The undercut portion of undercut portion 146 second retention means of 145 first retention means
The head of cervical region 148 second retention means of 147 second retention means
Claims (10)
1. a spider die (10), be used for the artificial tooth superstructure is fastened to shaft-like male member (1), this shaft-like male member is the Dolder bar, wherein said spider die has cover (11), the cross section of described cover is at least with approximate U-shaped mode bending, described cover can secure on the described shaft-like male member, and is provided with at least one retention means (14) that is used to make artificial tooth superstructure maintenance described putting, wherein said at least one retention means (14,14 ', 14 "; 141; 142) be to be formed on a described part that puts, and have basic orientation, it is characterized in that described at least one retention means (14 along last lower tooth interlock direction; 14 ', 142) on the whole length of described cover (11), extend, and the cross section of described at least one retention means be and have the connection cervical region (14 "; Head 144,147) (14 '; 143, shape 148) so that described connection cervical region on both sides, form maintenance undercut portion (14 " '; 145,146), and the connection cervical region of wherein said at least one retention means top line that departs from described cover be formed integratedly.
2. spider die according to claim 1 is characterized in that, described at least one retention means (14; 142) also have and depart from the inclination angle that the described direction towards cheek or tongue that goes up lower tooth interlock direction tilts.
3. spider die according to claim 2 is characterized in that, described at least one retention means (14; 142) depart from the described inclination angle of lower tooth interlock direction of going up between 0 ° to 45 °, preferably between 10 ° to 30 °.
4. spider die according to claim 1, it is characterized in that, described spider die is included in parallel two retention means (141,142) of extending on the whole length of described cover (11), described two retention means all have the orientation that goes up lower tooth interlock direction along described basically, and described two retention means surround an angle (α) each other.
5. spider die according to claim 4 is characterized in that, the described angle (α) that described two retention means (141,142) surround each other is 90 ° to the maximum, and wherein this angle is preferably between 10 ° to 45 °.
6. spider die according to claim 4 is characterized in that, the cross section of described two retention means (141,142) is the shape that has the head (143,148) that connects cervical region (144,147).
7. spider die according to claim 6 is characterized in that, described connection cervical region (144,147) has different length.
8. spider die according to claim 1 is characterized in that, the head of described retention means has the par of extending on described whole length.
9. spider die according to claim 8 is characterized in that, extend perpendicular to the described lower tooth interlock direction that goes up described par.
10. according to each described spider die (10) among the claim 1-9, it is characterized in that described at least one retention means (14 of on the whole length of described cover (11), extending; 141,142) be provided with the undercut edge (16) perpendicular in one or more positions with the longitudinal direction of described retention means.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH15072006 | 2006-09-21 | ||
| CH1507/06 | 2006-09-21 | ||
| CH5402007 | 2007-04-04 | ||
| CH540/07 | 2007-04-04 | ||
| PCT/CH2007/000329 WO2008034267A1 (en) | 2006-09-21 | 2007-07-06 | Spider die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101516289A true CN101516289A (en) | 2009-08-26 |
| CN101516289B CN101516289B (en) | 2012-08-29 |
Family
ID=37696335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800347689A Expired - Fee Related CN101516289B (en) | 2006-09-21 | 2007-07-06 | Spider die |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101516289B (en) |
| ES (1) | ES2369741T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134878A (en) * | 2019-01-28 | 2020-05-12 | 刘友烈 | Integrated implant rod, fixing false tooth and forming method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209904A (en) * | 1978-10-23 | 1980-07-01 | Staubli Peter E | Rider clip with offset retention flaps and retention bar for denture |
| DE3009758A1 (en) * | 1980-03-14 | 1981-09-24 | Josef 4630 Bochum Herrmann | Removable dental prosthesis fastening - has U=shaped metal clip fixed by protruding pins to body |
| CH673215A5 (en) * | 1987-11-27 | 1990-02-28 | Cendres & Metaux Sa | |
| JP2002102258A (en) * | 2000-09-29 | 2002-04-09 | Aichi Steel Works Ltd | Denture attachment for bar type implant |
-
2007
- 2007-07-06 CN CN2007800347689A patent/CN101516289B/en not_active Expired - Fee Related
- 2007-07-06 ES ES07763936T patent/ES2369741T3/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134878A (en) * | 2019-01-28 | 2020-05-12 | 刘友烈 | Integrated implant rod, fixing false tooth and forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101516289B (en) | 2012-08-29 |
| ES2369741T3 (en) | 2011-12-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20120829 Termination date: 20130706 |