US20040229191A1 - Tweezers - Google Patents
Tweezers Download PDFInfo
- Publication number
- US20040229191A1 US20040229191A1 US10/872,665 US87266504A US2004229191A1 US 20040229191 A1 US20040229191 A1 US 20040229191A1 US 87266504 A US87266504 A US 87266504A US 2004229191 A1 US2004229191 A1 US 2004229191A1
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- US
- United States
- Prior art keywords
- tweezers
- clamping elements
- legs
- clamping
- shaped
- 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.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/10—Tooth pincettes or the like
Definitions
- the invention is directed to tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics, for example, for dental purposes.
- abrasive characteristics for example, for dental purposes.
- the use of commercially available polishing strips and finishing strips having a width of 5-6 mm as strip-shaped material causes difficulties, primarily with respect to space, especially when a dental dam through which a tooth to be treated protrudes is located inside the oral cavity. This is also true of strips of half-width (2.5-6 mm) and for thread-shaped material.
- clamping elements particularly in the shape of rods, are arranged in the area of the free end of each of the two sides or legs of the tweezers, wherein, in the closed position of the tweezers, at least one clamping element arranged at a leg contacts two clamping elements arranged at a distance from one another at the other leg or engages in a recess located in the latter.
- tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics are arranged in the area of the free end of each of the two legs of the tweezers, wherein in the closed position of the tweezers, at least one clamping element arranged at a leg contacts two clamping elements arranged at a distance from one another at the other leg or engages in a recess located in the latter.
- the tweezers outfitted according to the invention it is possible to hold the strip-shaped or thread-shaped material, for example, a polishing strip located inside the oral cavity, without difficulty so that a strip, which can also be made from metal, can be moved back and forth in the gap between two adjacent teeth or on the lateral surface of a tooth in order to polish the surface.
- the tweezers make it possible to hold the strip-shaped or thread-shaped material without difficulty by means of the clamping elements without the material, e.g., the polishing strip, being bent by the cooperating clamping elements.
- Strips of half-width (2.5-3 mm) can be introduced into the interdental space below the contact point of adjacent teeth and can be moved without difficulty in the longitudinal direction of the strip and also transverse to the strip, so that every point on the tooth can be reached by the strip.
- the working part of the polishing strip or thread can be varied continuously in length (working length) by letting go and then holding again with the tweezers. Therefore, it is not necessary to exchange the strip or thread in the course of a polishing or working process; rather, the entire length of the strip or thread is available for working. Therefore, use of the tweezers according to the invention also makes it possible to economize on strips or threads in dental practice.
- the clamping elements are constructed as cylinders, preferably with circular cross section, which are arranged axially parallel to one another. They can be fastened to the inner side of the legs of the tweezers by gluing, soldering or welding.
- the cylinders can also be flattened toward the outer side of the tweezers.
- the cylinders could also have an elliptical cross section in a section vertical to their axis.
- the cylinders can also be worked out of the material of the tweezers directly, in which case the clamping elements need not be fastened by special fastening means or by gluing, soldering or welding.
- the clamping elements of the tweezers according to the invention can be arranged in such a way that they project above the legs of the tweezers on at least one side. In this way, it can be ensured that the clamping elements have sufficient free length to clamp strip-shaped material over its entire width, so that the strip-shaped material is clamped without being damaged.
- clamping elements terminate flush with the longitudinal boundaries of the legs of the tweezers.
- This embodiment form dispenses with clamping elements projecting over the tweezers.
- the outer surface of the clamping elements has a friction coating, e.g., diamond powder, at least in the area of contact with the strip-shaped or thread-shaped material, as is provided in a preferred embodiment form of the tweezers according to the invention.
- the parts of the outer surface of the clamping elements which do not come into contact with the strip-shaped or thread-shaped material during the clamping process and the plane end faces of the clamping elements advisably do not have a friction coating and, in particular, are polished.
- the arrangement of the clamping elements can be carried out in such a way that in the clamping position of the tweezers the centers of the circular cross sections form corner points of an isosceles right-angled triangle in an imaginary section through the clamping cylinder normal to the axis.
- the cylinder diameters of the clamping elements provided on tweezers can also differ from one another.
- FIG. 1 shows a tooth in longitudinal section adjacent to a tooth shown in a front view
- FIG. 2 is a top view of FIG. 1;
- FIG. 3 shows an embodiment form of tweezers according to the invention in a three-dimensional view
- FIG. 4 shows the tweezers according to FIG. 3 in a side view
- FIG. 5 shows a section along line V-V in FIG. 4
- FIG. 6 shows the front end of tweezers with polishing strips clamped between the legs
- FIG. 7 is a three-dimensional view showing an embodiment form of tweezers according to the invention that is modified from the view in FIG. 3;
- FIG. 8 is a side view of the tweezers shown in FIG. 7;
- FIG. 9 shows the detail from FIG. 8, designated by reference number 9 , in an enlarged view compared with FIG. 8, wherein a polishing strip is shown in a position in which it is clamped by the legs of the tweezers.
- a polishing strip such as is used in dentistry is designated by 1 in the drawing as an example of the strip-shaped or thread-shaped material.
- the tooth 11 to be polished by means of the polishing strip 1 is provided with a dental restoration 12 in the form of a crown which is fastened by adhesion to the tooth stump.
- glue can exit laterally from the clamping joint and forms a bead 13 which must be removed in order to achieve a smooth lateral tooth surface.
- the polishing strip 1 is used to remove such irregularities.
- Tweezers are advisably used for holding and moving the polishing strip 1 , wherein clamping elements 4 , 4 ′ are arranged in the area of the free end of each leg 2 , 3 of the tweezers.
- clamping elements are constructed in a rod-shaped manner in the embodiment examples (FIGS. 3 to 9 ) shown in the drawing.
- the polishing strips can be made from plastic or metal (metal matrix strips).
- the thickness is preferably on the order of magnitude of 40 ⁇ m.
- a clamping element 4 ′ arranged at the leg 2 of the tweezers contacts two clamping elements 4 arranged at a distance from one another at the other leg 3 .
- the clamping element which is provided at one leg and constructed in the manner of a knob (ball joint), for example, could also engage in a congruent recess arranged at the other leg in a manner not shown in the drawing.
- the clamping elements 4 , 4 ′ are constructed as circular cylinders arranged with axes parallel to one another.
- the fastening of the cylinders to the legs 2 and 3 can be carried out by gluing, soldering or welding to the inner side 2 ′, 3 ′ of the legs 2 , 3 of the tweezers.
- screw fastening could also be provided.
- the cylinders could also be attached to the free ends of the legs in the manner of carriers or slides, in which case the ends of the legs could engage in a longitudinal slot which is arranged at the cylindrical clamping element proceeding from a side surface of the clamping element.
- the clamping elements on one side project above the legs of the tweezers.
- the arrangement could also be carried out in such a way that the clamping elements project above the legs of the tweezers on both sides, preferably to 2 ⁇ 3 of its length on one side and to 1 ⁇ 3 of its length on the other side.
- the clamping elements 4 , 4 ′ terminate flush with the longitudinal boundaries of the legs 2 , 3 of the tweezers.
- the longitudinal axis 7 and 7 ′ of the rod-shaped clamping elements 4 , 4 ′ enclose an obtuse angle a with the longitudinal axis 8 and 9 of the legs 2 , 3 , respectively.
- the outer surface of the clamping elements 4 , 4 ′ with a friction coating at least in the area of contact with the polishing strip 1 ; in the other areas, the clamping elements can be polished.
- a suitable friction coating is, e.g., diamond powder which is applied to the surface of the clamping elements.
- the centers 10 , 10 ′ of the circular cross sections form the corner points of an isosceles right-angled triangle in the clamping position in a section through the clamping cylinders normal to the axis.
- the cylinder cross sections can also be elliptical in a manner which is not shown.
Abstract
Tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics are disclosed, for example, for dental purposes, wherein clamping elements, particularly in the shape of rods, are arranged in the area of the free end of each of the two legs of the tweezers, and wherein, in the closed position of the tweezers, at least one clamping element arranged at a leg contacts two clamping elements arranged at a distance from one another at the other leg or engages in a recess located in the latter.
Description
- This application is a continuation of U.S. application Ser. No. 09/953,017, filed Sep. 14, 2001, which claims priority of Austrian Application No. A 1580/2000, filed Sep. 15, 2000, the complete disclosures of which are hereby incorporated by reference.
- The invention is directed to tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics, for example, for dental purposes. During intraoral working of tooth fillings and with dental restorations, particularly crowns, which are attached by adhesion, the use of commercially available polishing strips and finishing strips having a width of 5-6 mm as strip-shaped material causes difficulties, primarily with respect to space, especially when a dental dam through which a tooth to be treated protrudes is located inside the oral cavity. This is also true of strips of half-width (2.5-6 mm) and for thread-shaped material.
- It is one of the objects of the invention to remedy this difficulty in that clamping elements, particularly in the shape of rods, are arranged in the area of the free end of each of the two sides or legs of the tweezers, wherein, in the closed position of the tweezers, at least one clamping element arranged at a leg contacts two clamping elements arranged at a distance from one another at the other leg or engages in a recess located in the latter.
- In particular, in accordance with the invention, tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics, for example, for dental purposes, particularly in the shape of rods, are arranged in the area of the free end of each of the two legs of the tweezers, wherein in the closed position of the tweezers, at least one clamping element arranged at a leg contacts two clamping elements arranged at a distance from one another at the other leg or engages in a recess located in the latter.
- By using the tweezers outfitted according to the invention, it is possible to hold the strip-shaped or thread-shaped material, for example, a polishing strip located inside the oral cavity, without difficulty so that a strip, which can also be made from metal, can be moved back and forth in the gap between two adjacent teeth or on the lateral surface of a tooth in order to polish the surface. The tweezers make it possible to hold the strip-shaped or thread-shaped material without difficulty by means of the clamping elements without the material, e.g., the polishing strip, being bent by the cooperating clamping elements. Strips of half-width (2.5-3 mm) can be introduced into the interdental space below the contact point of adjacent teeth and can be moved without difficulty in the longitudinal direction of the strip and also transverse to the strip, so that every point on the tooth can be reached by the strip. The working part of the polishing strip or thread can be varied continuously in length (working length) by letting go and then holding again with the tweezers. Therefore, it is not necessary to exchange the strip or thread in the course of a polishing or working process; rather, the entire length of the strip or thread is available for working. Therefore, use of the tweezers according to the invention also makes it possible to economize on strips or threads in dental practice.
- In a further development of the invention, the clamping elements are constructed as cylinders, preferably with circular cross section, which are arranged axially parallel to one another. They can be fastened to the inner side of the legs of the tweezers by gluing, soldering or welding. The cylinders can also be flattened toward the outer side of the tweezers. However, the cylinders could also have an elliptical cross section in a section vertical to their axis. The cylinders can also be worked out of the material of the tweezers directly, in which case the clamping elements need not be fastened by special fastening means or by gluing, soldering or welding.
- In a further embodiment form, the clamping elements of the tweezers according to the invention can be arranged in such a way that they project above the legs of the tweezers on at least one side. In this way, it can be ensured that the clamping elements have sufficient free length to clamp strip-shaped material over its entire width, so that the strip-shaped material is clamped without being damaged.
- Handling is improved in a further development of the invention when the longitudinal axis of the rod-shaped clamping elements encloses an obtuse angle with the longitudinal axis of the legs of the tweezers. However, constructions with an acute angle or right angle can also be used. In poorly accessible locations, the angle can be between 75° and 90°.
- In another possible embodiment form of the clamping elements, the latter terminate flush with the longitudinal boundaries of the legs of the tweezers. This embodiment form dispenses with clamping elements projecting over the tweezers.
- In order to increase friction between the clamping elements and the strip-shaped or thread-shaped material, it is advisable when the outer surface of the clamping elements has a friction coating, e.g., diamond powder, at least in the area of contact with the strip-shaped or thread-shaped material, as is provided in a preferred embodiment form of the tweezers according to the invention. The parts of the outer surface of the clamping elements which do not come into contact with the strip-shaped or thread-shaped material during the clamping process and the plane end faces of the clamping elements advisably do not have a friction coating and, in particular, are polished.
- The arrangement of the clamping elements can be carried out in such a way that in the clamping position of the tweezers the centers of the circular cross sections form corner points of an isosceles right-angled triangle in an imaginary section through the clamping cylinder normal to the axis. The cylinder diameters of the clamping elements provided on tweezers can also differ from one another.
- The invention will be described more fully in the following by way of example with reference to the drawing.
- In the drawings:
- FIG. 1 shows a tooth in longitudinal section adjacent to a tooth shown in a front view;
- FIG. 2 is a top view of FIG. 1;
- FIG. 3 shows an embodiment form of tweezers according to the invention in a three-dimensional view;
- FIG. 4 shows the tweezers according to FIG. 3 in a side view;
- FIG. 5 shows a section along line V-V in FIG. 4;
- FIG. 6 shows the front end of tweezers with polishing strips clamped between the legs;
- FIG. 7 is a three-dimensional view showing an embodiment form of tweezers according to the invention that is modified from the view in FIG. 3;
- FIG. 8 is a side view of the tweezers shown in FIG. 7; and
- FIG. 9 shows the detail from FIG. 8, designated by
reference number 9, in an enlarged view compared with FIG. 8, wherein a polishing strip is shown in a position in which it is clamped by the legs of the tweezers. - A polishing strip such as is used in dentistry is designated by1 in the drawing as an example of the strip-shaped or thread-shaped material. The
tooth 11 to be polished by means of thepolishing strip 1 is provided with adental restoration 12 in the form of a crown which is fastened by adhesion to the tooth stump. When gluing, glue can exit laterally from the clamping joint and forms abead 13 which must be removed in order to achieve a smooth lateral tooth surface. Thepolishing strip 1 is used to remove such irregularities. Tweezers are advisably used for holding and moving thepolishing strip 1, whereinclamping elements leg - In the closed position of the tweezers, a
clamping element 4′ arranged at theleg 2 of the tweezers contacts twoclamping elements 4 arranged at a distance from one another at theother leg 3. The clamping element which is provided at one leg and constructed in the manner of a knob (ball joint), for example, could also engage in a congruent recess arranged at the other leg in a manner not shown in the drawing. With an appropriate design of the clamping elements, it is also possible in this case to prevent damage to the surface of the strip-shaped material, e.g., by formation of a fold in the clamping area. - In the present embodiment examples, the
clamping elements legs inner side 2′, 3′ of thelegs - In the embodiment form according to FIGS. 3 and 4, the clamping elements on one side project above the legs of the tweezers. The arrangement could also be carried out in such a way that the clamping elements project above the legs of the tweezers on both sides, preferably to ⅔ of its length on one side and to ⅓ of its length on the other side. In contrast, in the embodiment form according to FIGS.7 to 9, the
clamping elements legs - In the embodiment forms shown herein, the
longitudinal axis shaped clamping elements longitudinal axis legs - In order to increase the friction between the clamping elements and the thread-shaped or strip-shaped material (polishing strip1), it is advisable to provide the outer surface of the
clamping elements strip 1; in the other areas, the clamping elements can be polished. A suitable friction coating is, e.g., diamond powder which is applied to the surface of the clamping elements. - As is shown in FIGS. 2 and 5, the
centers - With respect to the arrangement of the clamping elements on the legs of the tweezers, right-hand and left-hand tweezers can be produced. The end faces of the clamping elements should be polished and should therefore not have a friction coating. This ensures that less experienced users of the tweezers will not scratch the surrounding hard tooth structure so that the surface of the tooth remains smooth.
- While the foregoing description and drawings represent the present invention, it will be obvious to those skilled in the art that various changes may be made therein without departing from the true spirit and scope of the present invention.
Claims (10)
1. Tweezers for holding strip-shaped or thread-shaped material with particularly abrasive characteristics including for dental purposes, comprising:
clamping elements in the shape of rods, being arranged in the area of a free end of each of two legs of the tweezers;
at least one clamping element arranged at a leg so that the at least one claiming element contacts two other clamping elements arranged at a distance from one another at the other leg in a closed position of the tweezers.
2. Tweezers according to claim 1 , wherein the clamping elements are constructed as cylinders, with circular cross section, which are arranged axially parallel to one another and are fastened to the inner side of the legs of the tweezers by gluing, soldering or welding.
3. Tweezers according to claim 1 , wherein the clamping elements project above the legs of the tweezers on at least one side.
4. Tweezers according to claim 1 , wherein the longitudinal axis of the rod-shaped clamping elements encloses an obtuse angle with the longitudinal axis of the legs.
5. Tweezers according to claim 1 , wherein the clamping elements at both ends terminate flush with the longitudinal boundaries of the legs of the tweezers.
6. Tweezers according to claim 1 , wherein the outer surface of the clamping elements has a friction coating, at least in the area of contact with the strip-shaped or thread-shaped material.
7. Tweezers according to claim 6 , wherein the friction coating is a diamond powder.
8. Tweezers according to claim 2 , wherein in the clamping position, the centers of the circular cross sections form corner points of an isosceles right-angled triangle in a section through the clamping cylinder normal to the axis.
9. Tweezers for holding strip-shaped or thread-shaped material with abrasive characteristics including for dental purposes, comprising:
first and second legs each with an attached end and a free end, the attached ends of the first and second legs being attached to each other;
a first clamping element, in the shape of a rod, arranged in the area of the free end of the first leg;
second and third clamping elements, in the shape of a rod, arranged in the area of the free end of the second leg and spaced from each other;
the first clamping element contacting the second and third clamping elements in a closed position of the tweezers.
10. The tweezers according to claim 9 , wherein at least one of the clamping elements is constructed as a cylinder with a circular cross section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/872,665 US20040229191A1 (en) | 2000-09-15 | 2004-06-21 | Tweezers |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA1580/2000 | 2000-09-15 | ||
AT0158000A AT408717B (en) | 2000-09-15 | 2000-09-15 | Pincers |
US09/953,017 US6776615B2 (en) | 2000-09-15 | 2001-09-14 | Tweezers |
US10/872,665 US20040229191A1 (en) | 2000-09-15 | 2004-06-21 | Tweezers |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/953,017 Continuation US6776615B2 (en) | 2000-09-15 | 2001-09-14 | Tweezers |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040229191A1 true US20040229191A1 (en) | 2004-11-18 |
Family
ID=3688373
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/953,017 Expired - Fee Related US6776615B2 (en) | 2000-09-15 | 2001-09-14 | Tweezers |
US10/872,665 Abandoned US20040229191A1 (en) | 2000-09-15 | 2004-06-21 | Tweezers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/953,017 Expired - Fee Related US6776615B2 (en) | 2000-09-15 | 2001-09-14 | Tweezers |
Country Status (3)
Country | Link |
---|---|
US (2) | US6776615B2 (en) |
EP (1) | EP1199003A1 (en) |
AT (1) | AT408717B (en) |
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US20080176180A1 (en) * | 2005-05-05 | 2008-07-24 | Dellinger Eugene L | Orthodontic tooth retention system |
US20090305182A1 (en) * | 2005-05-05 | 2009-12-10 | Dellinger Eugene L | Orthodontic tooth retention system |
US20100304329A1 (en) * | 2009-05-30 | 2010-12-02 | Young Ku Heo | Implant fixture remover |
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FR2851655B1 (en) * | 2003-02-24 | 2006-01-27 | Oreal | DEVICE FOR MAKING A SAMPLING OF MATTER ON KERATIN FIBERS, IN PARTICULAR HAIR |
US7758586B2 (en) * | 2003-05-02 | 2010-07-20 | Atrium Medical Corporation | Method and apparatus for introducing catheters |
US20050166939A1 (en) * | 2004-02-04 | 2005-08-04 | Stroud Anna D. | False eyelash applicator |
US7621742B2 (en) * | 2004-04-30 | 2009-11-24 | Michaelson Dennis J | Orthodontic hand tool system |
US8088142B2 (en) * | 2006-12-31 | 2012-01-03 | Yamada Jason M | Sinus membrane perforation patching material carrying instrument |
US20100279244A1 (en) * | 2008-01-15 | 2010-11-04 | Nicholson James A | Method of removing an archwire from an orthodontic bracket and wire disengagement instruments for applying such method |
US20090181337A1 (en) * | 2008-01-15 | 2009-07-16 | Nicholson James A | Wire disengagement instrument |
FR2937430B1 (en) * | 2008-10-16 | 2010-12-31 | Commissariat Energie Atomique | TWEEZERS WITH GRIPPING ELEMENTS MOUNTED TO PIVOTE ON BRANCHES. |
US8052420B2 (en) * | 2009-10-29 | 2011-11-08 | Navarro Carlos F | Apparatus and method for adjusting orthodontic wire |
US20110151406A1 (en) * | 2009-12-17 | 2011-06-23 | Mildred Solano | Dental articulating paper forceps |
EP2605720B1 (en) | 2010-08-19 | 2014-07-16 | Dental Care Innovation GmbH | Double-arched tweezers for dental operations |
DE102010060101A1 (en) * | 2010-09-20 | 2012-03-22 | Aesculap Ag | Spinal stabilization system and surgical device for temporarily stiffening a flexible intermediate portion of a spinal stabilization system connector |
DE102010050345A1 (en) * | 2010-11-05 | 2012-05-10 | Mahle International Gmbh | Hybrid bolt for connecting a piston for an internal combustion engine with a connecting rod and pressing device for producing the hybrid pin |
US20120209316A1 (en) * | 2011-02-14 | 2012-08-16 | Taso, Llc | Multifunctional grooming tweezers |
KR101206732B1 (en) * | 2012-01-31 | 2012-11-30 | 김중한 | Tool for adhesion of teeth correction bracket |
WO2014047440A1 (en) | 2012-09-21 | 2014-03-27 | Triodent Holdings Limited | Double ended tweezers |
US8608774B1 (en) | 2012-10-02 | 2013-12-17 | Hasan M. Sh. Sh. Alshemari | Bifurcated forceps |
USD795429S1 (en) * | 2016-04-12 | 2017-08-22 | Dental Tool Development, LLC | Dental implant tool |
US11224451B2 (en) * | 2018-09-10 | 2022-01-18 | Ocusoft, Inc. | Forceps |
US10414037B1 (en) * | 2018-09-25 | 2019-09-17 | Michael Heavrin | Hammer drill adapter for driving cleats onto sheet metal edges |
US10485365B1 (en) * | 2019-02-12 | 2019-11-26 | Big Sky Product Innovation, LLC | Single-handed locking tongs |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080176180A1 (en) * | 2005-05-05 | 2008-07-24 | Dellinger Eugene L | Orthodontic tooth retention system |
US20090305182A1 (en) * | 2005-05-05 | 2009-12-10 | Dellinger Eugene L | Orthodontic tooth retention system |
US7854610B2 (en) * | 2005-05-05 | 2010-12-21 | Dellinger Eugene L | Orthodontic tooth retention system |
US20110143302A1 (en) * | 2005-05-05 | 2011-06-16 | Dellinger Eugene L | Orthodontic tooth retention system |
US8147244B2 (en) | 2005-05-05 | 2012-04-03 | Dellinger Eugene L | Orthodontic tooth retention system |
US8523564B2 (en) | 2005-05-05 | 2013-09-03 | Eugene L. Dellinger | Orthodontic tooth retention system |
US20100304329A1 (en) * | 2009-05-30 | 2010-12-02 | Young Ku Heo | Implant fixture remover |
Also Published As
Publication number | Publication date |
---|---|
US20020127514A1 (en) | 2002-09-12 |
US6776615B2 (en) | 2004-08-17 |
ATA15802000A (en) | 2001-07-15 |
AT408717B (en) | 2002-02-25 |
EP1199003A1 (en) | 2002-04-24 |
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