WO2005023132A2 - Improved obturators - Google Patents
Improved obturators Download PDFInfo
- Publication number
- WO2005023132A2 WO2005023132A2 PCT/US2004/029434 US2004029434W WO2005023132A2 WO 2005023132 A2 WO2005023132 A2 WO 2005023132A2 US 2004029434 W US2004029434 W US 2004029434W WO 2005023132 A2 WO2005023132 A2 WO 2005023132A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- dental obturator
- dental
- obturator
- tip
- Prior art date
Links
- VONKRKBGTZDZNV-UHFFFAOYSA-N CC=C1CCCC1 Chemical compound CC=C1CCCC1 VONKRKBGTZDZNV-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/50—Implements for filling root canals; Methods or instruments for medication of tooth nerve channels
Definitions
- This invention relates to dental implements and, more particularly to such implements which are particularly designed for the filling of root canals with sealing materials.
- Dental obturators often referred to as pluggers or, if provided with heating elements, heat carrier/pluggers, are designed for the insertion and packing of tapered gutta percha cones into a previously prepared root canal.
- My patent 5,921,775 describes ar endodontic treatment system in which the shaping instruments, irrigation cannulas, filling implements and related materials designed to safely create specific tapers in root canal preparation are provided. All of these various implements are designed with the same taper, preferably one which is greater than the standard ISO taper of 0.02mm of taper/mm of flute length.
- My patent describes some of the benefits to be realized from using a taper which is greater than the 0.02 taper (the ISO standard) and also benefits derived from having all of the files and auxiliary implements with the same taper.
- a taper which is greater than the 0.02 taper (the ISO standard)
- My patent describes some of the benefits to be realized from using a taper which is greater than the 0.02 taper (the ISO standard) and also benefits derived from having all of the files and auxiliary implements with the same taper.
- Patent 4,165,562 of Sarfatti discloses a base and sleeve jointly provided with mating threads to facilitate precise longitudinal adjustment of the file relative to the sleeve. The / / bottom end of the sleeve is utilized as a stop which abuts the tooth to thereby limit the depth of file penetration.
- GT Obturators in accordance with the invention are designed to be used in root canal shapes that are created with GT files specified in my Patent 5,921,775 which establish a predefined tapered shape within the canal .
- the obturators of the invention have specific structural configurations which have one or more projections from the surface of the carrier that stop the insertion of the carrier at a point which is back from the end of the tapered canal .
- these projections are in the form of auto-stop carrier bumps located 3mm back from the tip of the carrier.
- the projections are mounted on the carrier surface on three sides, all at the same 3mm distance from the tip.
- the bumps are sized to automatically bind the canal wall when the tip of the carrier is exactly 1mm from the canal terminus .
- the clinician is eliminated as a variable in apical accuracy in filling the canal.
- the variations in clinicians' abiliti ⁇ s to place the carrier accurately have been leveled.
- a post space can now be drilled through the coronal portion of the carrier in the same dentist visit.
- Previously known designs required a second visit after the sealer and gutta percha are fully set to hold the carrier in place. Cutting a post space with a post space drill prior to gutta percha and sealer setting often results in over-insertion of the carrier and the expulsion of unnecessary surplus of filling material beyond the terminus of the root canal .
- the diameter of the carrier handle which is provided is dramatically reduced in size. Handles which are currently in use are difficult for an assistant to grasp with locking cotton pliers which are used in passing the heated carrier to the doctor for placement in the canal . With the reduction in diameter of carriei handles in accordance with the invention, the handles are much easier to grasp with cotton pliers. Also the smaller handles significantly increase the doctor's visibility of the access cavity during placement of the carrier, as opposed to the doctor having to look around his fingers which fill the operative field of view. Furthermore, in multi-canal teeth, it is difficult to place two carriers, with their handles side by side, and it is impossible to place more than two carriers without cutting the handles off.
- the placement and packing of the filling material can be accomplished in half the time formerly required to fill with carriers, and without requiring a costly second appointment in cases where a post space is needed.
- Use of arrangements of the present invention also provide the benefits of eliminating filling length errors, and allow multiple carriers to be placed in a tooth, one after another, before cutting them all in one cutting operation. As a result, dentists are able to concentrate more on the task and less on their techniques.
- the surface projections are in the general form of partial spheres installed on the outer surface of the carrier, preferably at a distance of one- third the carrier length from the tip.
- bumps are situated in groups of three, spaced approximately equidistant about the circumference of the carrier and all at the same distance from the tip.
- the center of each transverse bump i ⁇ located on the outer diameter of the carrier.
- the diameter of each spherical projection is preferably X A of the carrier diameter at the location of the bumps .
- the projections are in the form of spaced-apart ridges, again mounted generally equidistant about the circumference of the carrier.
- the ridges may be arranged in a spiral configuration. The advantage of using the ridged embodimeijtt is that it provides some leeway in the insertion of the carrier into the root canal.
- the spiral ridge embodiment in particular, also provides a better support for the filling material to be held along the carrier.
- the carrier is bare for the final 1.5mm of its length. This means that the filling material does not extend along the last 1.5mm from the tip. As a result, gutta percha removal is not required at the tip as contrasted with present practice where the gutta percha extends beyond the tip and must be trimmed before use.
- FIG. 1 is a schematic view showing a carrier/obturator in accordance with the present invention
- FIG. 2 is a sectional view taken along the line 2-2 in FIG. 1
- FIG. 3 is a schematic side view of one particular carrier in accordance with the invention
- FIG. 4 is an enlarged view of a portion of the carrier of FIG. 3
- FIG. 5 is a schematic view of the carrier of FIG. 3, viewed from the right-hand end
- FIG. 6 is a schematic side view of another carrier in accordance with the invention
- FIG. 7 is an enlarged view of a portion of the carrier of FIG.
- FIG. 8 is a schematic view of the carrier of FIG. 6, viewed from the right-hand end;
- FIG. 9 is a schematic side view of still another carrier in accordance with the invention;
- FIG. 10 is an enlarged view of a portion of the carrier of FIG. 9;
- FIG. 11 is a schematic view of the carrier of FIG. 9, viewed from the right-hand end;
- / / FIG. 12 is a simulated photograph of the carrier of FIG. 3;
- FIG. 13 is a simulated photograph of the carrier of FIG . 6 ;
- FIG. 14 is a simulated photograph of the carrier of FIG. 9 ;
- FIGs.,15A and 15B, 16A and 16B, and 17A and 17B are enlarged views of the carriers of FIGs . 12, 13 and 14, respectively.
- FIGs. 1 and 2 show one particular embodiment of the present invention as it is prepared for use.
- a carrier 10 is provided with a tip 12, a tapered portion 14, and a portion 16 of fixed diameter terminating at a cut-off end 18.
- the tapered portion 14 extends from the tip 12 tcj> the point 15.
- the carrier 10 is shown with a gutta percha plug 2(1 positioned thereon and extending at the rearward end to a plate 22.
- the plug 20 terminates at a forward end 24 which is located approximately 1.5mm back from the tip 12.
- the length of the tapered portion 14 is shown at a.
- a spherical projection or button 30 Approximately one-third (a/3) o ⁇ the tapered length 14 back from the tip 12 is a spherical projection or button 30.
- This button 30 (one of three) is mountec. on the outer surface of the carrier at a distance b from the tip 12.
- a cylindrical tactile collar 32 On the fixed-diameter portion of the carrier 10 is a cylindrical tactile collar 32 which tapers outwardly from its point of juncture with the outer surface of the fixed-diameter portion 16 of the carrier 10.
- the collar 32 serves to provide the user with a tactile indication of that point on the carrier, as well as serving as a stop for the oven arm in the heating of the gutta perch .
- the carrier 10 has three spherical bumps or buttons 30 projecting from the outer surface of the carrier 10.
- the diameter of the carrier at the position of the bumps is indicated as CD3.
- Extending axially along the tapered portion 14 of the carrier 10 is an elongated, shallow groove 40. This groove makes it easier to withdraw the carrier from the gutta percha plug 20.
- a plate 22 which is slidable along the carrier is placed at the proximal end of the plug 20. When the carrier is to be removed from the root canal after placement of the plug 20, the plate 22 serves to retain the plug 20 in position as the carrier 10 is withdrawn.
- the buttons 30 may be located equally spaced about the circumference of the carrier 10 at about 120-degree locations.
- buttons 30 may be space ⁇ . approximately 90 degrees apart with the center button 30 being on the opposite side of the carrier 10 from the groove 40.
- a carrier 10 having spherical buttons 30 is shown.
- the buttons 30 ar located at 120 degrees about the periphery of the tapered portion 14.
- the carrier of the FIG. 3 embodiment has a collar 32 with an adjacent stop plate 22' which is slidable along the carrier 10 to retain the plug in place when the carrier is being withdrawn from the root canal.
- FIGs. 6, 7 and 8 depict an alternative embodiment to that of FIGs. 3, 4 and 5.
- this carrier 110 has three elongate longitudinal ridges 130 projecting outwardly from the carrier surface. These longitudinal ridges 130 are rounded in shape and serve the same function as the bumps 30, constituting stops for the carrier 110 when it is being inserted into a root canal with the gutta percha plug 20 mounted on the tapered portion of the carrier. Being elongated, they provide better attachment of the gutta percha plug on the tapered portion of the carrier 110 than is afforded by the bumps 30.
- FIGs. 9, 10 and 11 depict still another embodiment of the invention in which a carrier 210 is shown having a tactile collar 232, a tapered portion 214, and a tip 212. Three spiral ridges 230 are positioned along the tapered portion 214 in the same manner as the ridges 130 of the embodiment of FIG. 6, except that these ridges 230 are spiraled slightly. Otherwise, the carrier 21( is essentially identical to the carrier 110 of the FIG. 6 embodiment.
- FIGs. 12, 13 and 14 are simulated photographs of the three embodiments of FIGs. 3, 6 and 9, respectively. These views show that the carriers are devoid of a conventional handle which is typically significantly larger in diameter than the diameter of the carrier. Since there is no handle to extend radially from the outer end of the carriers, more carriers can be inserted into a root canal without interference from others. With carriers having conventional handles, at most two carriers can be inserted at a time. With the feature of the present invention providing carriers without handles extending beyond the carrier, as many as four carriers can be inserted into a tooth, one for each root canal, and the outer ends can then all be severed at once.
- FIGs. 15A-15B, 16A-16B and 17A-17B are enlarged simulated photographs of the carriers shown in FIGs. 12, 13 and 14, respectively.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04783615A EP1670408A4 (en) | 2003-09-05 | 2004-09-07 | Improved obturators |
JP2006525546A JP5020632B2 (en) | 2003-09-05 | 2004-09-07 | Improved obturator |
US11/663,416 US7942673B2 (en) | 2003-09-05 | 2004-09-07 | Dental obturator |
US13/107,842 US8986006B2 (en) | 2003-09-05 | 2011-05-13 | Dental obturator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US50062303P | 2003-09-05 | 2003-09-05 | |
US60/500,623 | 2003-09-05 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/663,416 A-371-Of-International US7942673B2 (en) | 2003-09-05 | 2004-09-07 | Dental obturator |
US13/107,842 Division US8986006B2 (en) | 2003-09-05 | 2011-05-13 | Dental obturator |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005023132A2 true WO2005023132A2 (en) | 2005-03-17 |
WO2005023132A3 WO2005023132A3 (en) | 2005-06-30 |
Family
ID=34272976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/029434 WO2005023132A2 (en) | 2003-09-05 | 2004-09-07 | Improved obturators |
Country Status (5)
Country | Link |
---|---|
US (2) | US7942673B2 (en) |
EP (1) | EP1670408A4 (en) |
JP (1) | JP5020632B2 (en) |
KR (1) | KR100921305B1 (en) |
WO (1) | WO2005023132A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100076478A1 (en) * | 2006-12-15 | 2010-03-25 | Smith Robert C | Trocar assembly with obturator design |
WO2011131895A1 (en) * | 2010-04-23 | 2011-10-27 | Micro Mega International Manufactures | Method for sealing a root canal, and rotary plugger for carrying out the method |
WO2017005951A1 (en) * | 2015-07-03 | 2017-01-12 | Institut Catala D'especialitats Odontologiques, S.L. | Dental implantation device |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7204874B2 (en) | 2001-10-24 | 2007-04-17 | Pentron Clinical Technologies, Llc | Root canal filling material |
WO2005089370A2 (en) * | 2004-03-16 | 2005-09-29 | Goodis Charles J | Endodontic files and obturator devices and methods of manufacturing same |
WO2013190539A1 (en) * | 2012-06-19 | 2013-12-27 | Medic Nrg Ltd. | Gutta-percha sealant having removable electrode for locating apical foramen |
SA114350757B1 (en) | 2014-09-24 | 2015-07-07 | عبدالله محمد الشهري محمد | Endodontic apical plug |
US20160298049A1 (en) * | 2015-04-10 | 2016-10-13 | United Technologies Corporation | Solid lubricant filled structural matrix |
EP3500207B1 (en) | 2016-08-19 | 2021-02-17 | DENTSPLY SIRONA Inc. | Carrier based dental root canal obturator and manufacturing method thereof |
CN108035033B (en) * | 2018-01-18 | 2021-04-13 | 孚日集团股份有限公司 | Three-dimensional colorful printed towel |
ES2864877B2 (en) * | 2020-04-13 | 2022-10-14 | Galician Endodontic Company S L | ENDODONTIC OBTURATOR WITH GUTTA-PERCHA ROD AND APPLICATION PROCEDURE |
Citations (1)
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US4758156A (en) | 1987-04-02 | 1988-07-19 | Johnson William B | Tool for use in applying filler material to an endodontically prepared root canal |
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US1694857A (en) | 1924-12-03 | 1928-12-11 | Kulik Irving | Apparatus for filling root canals |
JPS59140713U (en) * | 1983-03-12 | 1984-09-20 | カネボウ株式会社 | Matrix tube for abutment construction |
CA1220369A (en) * | 1984-12-21 | 1987-04-14 | Hans-Werner Weisskircher | Self-adapting retentive endodontic build-up post |
JP2561697B2 (en) * | 1988-04-19 | 1996-12-11 | ウイリアム・ビー・ジヨンソン | Tool used in applying filling material to endodontically prepared root canals |
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US5118297A (en) | 1991-01-09 | 1992-06-02 | Johnson William B | Obturator body for use in filling an endontically prepared root |
US5098298A (en) * | 1991-04-18 | 1992-03-24 | Johnson William B | Appliance and method of use for filling an endodontically prepared root canal |
US5302129A (en) * | 1991-11-19 | 1994-04-12 | Heath Derek E | Endodontic procedure and instrument |
US5257934A (en) * | 1992-03-25 | 1993-11-02 | Giovanni Cossellu | Endodontic instrument for preparing the root canal |
US5328367A (en) * | 1993-04-14 | 1994-07-12 | Johnson William B | Method and apparatus for applying gutta percha to a carrier |
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US5833457A (en) * | 1996-11-18 | 1998-11-10 | Dentsply International Inc. | Endodontic obturator |
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US7168952B2 (en) * | 1999-05-12 | 2007-01-30 | Pentron Clinical Technologies, Llc | Endodontic post and obturating system |
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US6966774B2 (en) * | 2001-08-16 | 2005-11-22 | Cloudland Institute, Llc. | Endodontic instrument having notched cutting surfaces |
US6638067B2 (en) * | 2001-09-04 | 2003-10-28 | Ultradent Products, Inc. | Flocked endodontic files and other flocked devices |
US7018205B2 (en) * | 2002-05-10 | 2006-03-28 | Abelity, Llc | Barbed endodontic instrument |
AU2003253906A1 (en) * | 2002-07-19 | 2004-02-09 | Osteotech, Inc. | Chisels and procedure for insertion of spinal implant in a spinal disc space |
DE10338440A1 (en) * | 2003-08-19 | 2005-03-31 | Werner Mannschedel | Guttapercha tip and manufacturing process |
US7901404B2 (en) * | 2004-01-16 | 2011-03-08 | Arthrocare Corporation | Bone harvesting device and method |
US20070219565A1 (en) * | 2006-03-17 | 2007-09-20 | Vahid Saadat | Kinetic anchoring deployment system |
-
2004
- 2004-09-07 WO PCT/US2004/029434 patent/WO2005023132A2/en active Application Filing
- 2004-09-07 JP JP2006525546A patent/JP5020632B2/en not_active Expired - Fee Related
- 2004-09-07 KR KR1020067003491A patent/KR100921305B1/en active IP Right Grant
- 2004-09-07 EP EP04783615A patent/EP1670408A4/en not_active Withdrawn
- 2004-09-07 US US11/663,416 patent/US7942673B2/en not_active Expired - Fee Related
-
2011
- 2011-05-13 US US13/107,842 patent/US8986006B2/en active Active
Patent Citations (1)
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US4758156A (en) | 1987-04-02 | 1988-07-19 | Johnson William B | Tool for use in applying filler material to an endodontically prepared root canal |
Non-Patent Citations (1)
Title |
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See also references of EP1670408A4 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100076478A1 (en) * | 2006-12-15 | 2010-03-25 | Smith Robert C | Trocar assembly with obturator design |
US8845670B2 (en) * | 2006-12-15 | 2014-09-30 | Covidien Lp | Trocar assembly with obturator design |
US20150012030A1 (en) * | 2006-12-15 | 2015-01-08 | Covidien Lp | Trocar assembly with obturator design |
WO2011131895A1 (en) * | 2010-04-23 | 2011-10-27 | Micro Mega International Manufactures | Method for sealing a root canal, and rotary plugger for carrying out the method |
FR2959115A1 (en) * | 2010-04-23 | 2011-10-28 | Micro Mega Int Mfg Sa | METHOD FOR SEALING A RADICULAR CHANNEL AND A ROTARY FOLDER SUITABLE FOR THE IMPLEMENTATION OF THE METHOD |
WO2017005951A1 (en) * | 2015-07-03 | 2017-01-12 | Institut Catala D'especialitats Odontologiques, S.L. | Dental implantation device |
Also Published As
Publication number | Publication date |
---|---|
WO2005023132A3 (en) | 2005-06-30 |
US8986006B2 (en) | 2015-03-24 |
KR100921305B1 (en) | 2009-10-13 |
EP1670408A2 (en) | 2006-06-21 |
JP2007503939A (en) | 2007-03-01 |
US20110217669A1 (en) | 2011-09-08 |
JP5020632B2 (en) | 2012-09-05 |
EP1670408A4 (en) | 2009-07-15 |
US20080014554A1 (en) | 2008-01-17 |
US7942673B2 (en) | 2011-05-17 |
KR20060128823A (en) | 2006-12-14 |
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