CN102908195A - Gap expander for first permanent molar furcation - Google Patents
Gap expander for first permanent molar furcation Download PDFInfo
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- CN102908195A CN102908195A CN2012103923601A CN201210392360A CN102908195A CN 102908195 A CN102908195 A CN 102908195A CN 2012103923601 A CN2012103923601 A CN 2012103923601A CN 201210392360 A CN201210392360 A CN 201210392360A CN 102908195 A CN102908195 A CN 102908195A
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- blade end
- furcation
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- sword end
- rod part
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Abstract
The invention discloses a gap expander for a first permanent molar furcation, which comprises a shank part, wherein a rod part is arranged on the shank part; a blade end is arranged on the rod part; a pointed bulge is arranged on an operating face of the blade end, and extends from a joint of the blade end and the rod part to the end part of the blade end; and an included angle between the blade end and the rod part ranges from 120 degrees to 160 degrees. With the adoption of the technical measure that the included angle between the blade end and the rod part ranges from 120 degrees to 160 degrees, the bend of the blade end ensures that the operating face of the blade end can be inserted into the furcation below a dental crown smoothly; when the device is operated, the device is placed between the first permanent molar buccal furcation and a buccal alveolar bone in the longitudinal axis direction of a tooth; and a bone hammer is used to knock a shank end of the device towards gums in the long axis direction of the tooth so as to ensure that the blade end is embedded into and enters the furcation.
Description
Technical field
The present invention relates to a kind of exodontia instrument, relate in particular to a kind of sixth-year molar furcation area and increase the gap device.
Background technology
Sixth-year molar because of eruption the earliest, be in the middle part of left and right sides jawbone, tooth body anatomic form is complicated, the masticatory function of bearing is maximum, dental caries and periodontal disease probability occurs high, often causes that large of corona destroys or odontoseisis obviously etc. need to be pulled out the trouble tooth.
The sixth-year molar comparatively robust, the number of root many (2-4 roots), furcation area is large, and adjoins etc. (referring to Fig. 1, Fig. 2) with vitals such as maxillary sinus and nervus mandibularis pipes.Have chronic inflammatory disease and granulation tissue to exist if suffer from tooth at apical area, the tip of a root, periodontal membrane and the alveolar bone wall of trouble tooth all has absorption in various degree, and odontoseisis is pulled out these teeth comparatively easy.But for the sixth-year molar that has pulpal treatment or rootcanal filling treatment Shi Erxu to pull out, because its dental hard tissue's fragility increases, periodontal membrane space narrows down or disappears, the alveolar bone increase in density, when treatment need be pulled out for many years afterwards, normal the phenomenons such as corona is cracked, root of the tooth is easy to break occuring, obviously increased operating difficulty and become difficult point in the dental extraction, there is no so far desirable method, apparatus solves smoothly.And in extraction, can cause complication in the arts such as root of the tooth Enters upper jaw Dou, interior alveolar nerve injury as dealing with improperly then.
Summary of the invention
The invention provides a kind of exodontia that designs for sixth-year molar dissect physiology characteristics specially and increase the gap device with the sixth-year molar furcation area, the present invention is particularly suitable for the gap that increases of sixth-year molar furcation area.
The present invention adopts following technical scheme:
A kind of sixth-year molar furcation area increases the gap device, comprise: shank, be provided with bar section at shank, be provided with the sword end in bar section, the work surface of described sword end is provided with pointed projection, and pointed projection extends to the end of sword end from the junction of sword end and bar section, and the angle of described sword end and bar section is 120 ° ~ 160 °.
Compared with prior art, the present invention has following advantage:
(1) to have adopted the angle of sword end and bar section be 120 ° ~ 160 ° technical measures in the present invention, the bending of sword end is so that the work surface of sword end of the present invention can successfully be inserted to (Fig. 1 of furcation area place of corona below, the A place of Fig. 2 is furcation area), during operation, follow the tooth y direction, the present invention is placed between sixth-year molar buccal root bifurcated and the cheek side alveolar bone, along the long axis of tooth direction, with the bone hammer gum to knocking pommel of the present invention, so that the sword end embeds furcation area, the sword end enters furcation area thereupon, in this process, under the combined effect of the technical measures that the spill of the pointed shape of pointed projection 11 and pointed projection and furcation area matches, so that pointed projection has guide effect, under the guiding of pointed projection, the sword end is stably cut between furcation area and the alveolar bone, and the pointed projection on the work surface makes periodontal membrane progressively separate with root of the tooth, to enlarge periodontal spaces, and from the superficial to the deep wedge in the furcation area and alveolar bone gap of sixth-year molar, simultaneously, along with the furcation area of from the superficial to the deep wedging sixth-year molar and alveolar bone gap, the height of pointed projection 11 is along with pointed projection 11 reduces technical measures so that be arranged in furcation area with the height of the pointed projection 11 in alveolar bone gap becomes greatly gradually to the direction of sword end 1 end, thereby so that the tooth generation is stablized and slowly
To displacement, the gap increases.Shake merit about last and increase the gap device to enlarge local tooth socket.Sword end and tissue of tooth contact surface are smooth, make it to be easy to take out.
Description of drawings
Fig. 1 is the maxillary first molars structural map, and A represents furcation area among the figure.
Fig. 2 is lower jaw sixth-year molar structural map, and A represents furcation area among the figure.
Fig. 3 is structural representation of the present invention.
Fig. 4 is sword end cross section enlarged drawing of the present invention.
Fig. 5 is partial enlarged drawing of the present invention.
The specific embodiment
A kind of sixth-year molar furcation area increases the gap device, comprise: shank 3, be provided with bar section 2 at shank 3, be provided with sword end 1 in bar section 2, pointed and the spill furcation area that the work surface of described sword end 1 is provided with pointed projection 11 and pointed projection 11 matches, and pointed projection 11 extends to the end of sword end 1 from sword end 1 and the junction of bar section 2, and described sword end 1 is 120 ° ~ 160 ° with the angle of bar section 2.In the present embodiment, the height of pointed projection 11 is along with the direction of pointed projection 11 to sword end 1 end reduces; The work surface of the surface of pointed projection 11 and sword end 1 is shiny surface.The section of described pointed projection 11 is " crescent ", and shape forms point prominent for indulging shape protuberance " ridge ", and after in the dental elevator insertion furcation area district, its protuberance can be well chimeric with furcation area, makes dental elevator be difficult for sliding.This design has also increased the intensity of dental elevator, makes its not frangibility and distortion (see figure 4).
The present invention should follow in use: whole process is answered clear visual field, avoids alveolar bone wall and nerve, blood vessel injury.Can not firmly knock, can not make the degree of depth that increases gap excessive, especially should be noted getting when being completely cured except maxillary first molars.With the brisk knocking of bone hammer, increasing gap can not blindly enlarge, in order to avoid cause unnecessary wound, increase gap can be progressively with very, pull out and hocket, be used in conjunction with again dental forceps or narrow dental elevator, can be easy to the taking-up of being completely cured.The present invention has special shape, exquisiteness, directly insert the periodontal spaces in the furcation area district of sixth-year molar when increasing gap, not only sword is thin in its blade working end, and according to the root furcation anatomy configuration design, its outstanding vertical ridge can form good applying with the spill cambered surface in furcation area district, makes it to be difficult for slippage and damages adjacent teeth and soft tissue thereof.This method can shorten operating time, and wound is less, and is not easy to damage adjacent teeth and periodontal soft tissue.
Claims (3)
1. a sixth-year molar furcation area increases the gap device, it is characterized in that, comprise: shank (3), be provided with bar section (2) at shank (3), be provided with sword end (1) in bar section (2), pointed and the spill furcation area that the work surface of described sword end (1) is provided with pointed projection (11) and pointed projection (11) matches, and, pointed projection (11) extends to the end of sword end (1) from sword end (1) and the junction of bar section (2), described sword end (1) is 120 ° ~ 160 ° with the angle of bar section (2).
2. sixth-year molar furcation area according to claim 1 increases the gap device, it is characterized in that, the height of pointed projection (11) is along with the direction of pointed projection (11) to sword end (1) end reduces.
3. sixth-year molar furcation area according to claim 1 and 2 increases the gap device, it is characterized in that, the work surface of the surface of pointed projection (11) and sword end (1) is shiny surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103923601A CN102908195A (en) | 2012-10-16 | 2012-10-16 | Gap expander for first permanent molar furcation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103923601A CN102908195A (en) | 2012-10-16 | 2012-10-16 | Gap expander for first permanent molar furcation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102908195A true CN102908195A (en) | 2013-02-06 |
Family
ID=47606940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103923601A Pending CN102908195A (en) | 2012-10-16 | 2012-10-16 | Gap expander for first permanent molar furcation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102908195A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107411827A (en) * | 2017-09-08 | 2017-12-01 | 广西医科大学 | Dental caries therapeutic instrument and inlay and the method for treating carious tooth using instrument and inlay |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2434315A (en) * | 2006-01-23 | 2007-07-25 | Russell Khan-Sullman | Dental elevator/luxator |
| CN201642377U (en) * | 2010-03-26 | 2010-11-24 | 徐永进 | Exelcymosis knife |
| CN202892114U (en) * | 2012-10-16 | 2013-04-24 | 东南大学 | Gap increasing device for first molar root bifurcation |
-
2012
- 2012-10-16 CN CN2012103923601A patent/CN102908195A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2434315A (en) * | 2006-01-23 | 2007-07-25 | Russell Khan-Sullman | Dental elevator/luxator |
| CN201642377U (en) * | 2010-03-26 | 2010-11-24 | 徐永进 | Exelcymosis knife |
| CN202892114U (en) * | 2012-10-16 | 2013-04-24 | 东南大学 | Gap increasing device for first molar root bifurcation |
Non-Patent Citations (1)
| Title |
|---|
| 潘剑等: "标准拔牙器械及其使用", 《中国实用口腔科杂志》, vol. 3, no. 10, 31 December 2010 (2010-12-31), pages 581 - 584 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107411827A (en) * | 2017-09-08 | 2017-12-01 | 广西医科大学 | Dental caries therapeutic instrument and inlay and the method for treating carious tooth using instrument and inlay |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130206 |