US20160228227A1 - Three-dimensional curing light - Google Patents
Three-dimensional curing light Download PDFInfo
- Publication number
- US20160228227A1 US20160228227A1 US15/078,119 US201615078119A US2016228227A1 US 20160228227 A1 US20160228227 A1 US 20160228227A1 US 201615078119 A US201615078119 A US 201615078119A US 2016228227 A1 US2016228227 A1 US 2016228227A1
- Authority
- US
- United States
- Prior art keywords
- tooth
- curing light
- housing
- facet
- light
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/003—Apparatus for curing resins by radiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
-
- F21Y2101/02—
Definitions
- the present invention relates to the field of curing lights and, more particularly, to the field of three-dimensional curing lights.
- teeth have a 3-dimensional shape
- prior art dental curing lights all emit light that can only be applied to one side of a tooth at a time. Exposing the entire tooth to light emitted by a curing light uses up valuable dentist chair time.
- a 3-dimensional curing light is disclosed.
- FIG. 1 depicts an example 3-dimensional curing light.
- FIG. 2 depicts a cross-sectional view of an example 3-dimensional curing light.
- FIG. 3 depicts another cross-sectional view of an example 3-dimensional curing light.
- Three dimensional curing lights are disclosed that can emit light for polymerizing monomers into polymers from 3 sides of a tooth at the same time. This approach can also be used to enhance the properties of the cured dental composite, and to achieve a deeper cure.
- FIG. 1 depicts a perspective view of a 3-dimensional curing light.
- a control box 101 controls operation of the light. It includes a display 102 , control buttons 103 , 104 , and 105 for controlling power, curing mode, and light emitting selections respectively.
- An electrical cord 106 is attached to the control box 101 to provide electrical power from an AC outlet.
- a cable 107 transfers electrical power from the control box to a 3-dimensional curing light head 108 .
- the 3D curing light head has 3 facets, 109 , 110 , and 111 .
- the 3 facets form a 3-dimensional channel Inside the channel, the light is emitted from the inside of the facets.
- the light beams 112 , 113 , and 114 from each facet combine to cover the 3-dimensional space occupied by a tooth. Thus any three dimensional object inside the channel can be cured at once.
- the light emitted from the 3 facets can be controlled to be emitted together or individually depending on the need.
- FIG. 2 depicts a cross-sectional view of a 3-dimensional curing light head using LEDs as a light source.
- the light head there are 3 facets, 201 , 202 , and 203 .
- Each facet has a similar structure and they are oriented at about 90 degrees to each other.
- the facets form a channel therebetween into which an object to be cured is placed.
- Each facet contains an LED light source 204 .
- the LED light source can be a single LED, multiple LEDs, LED arrays, and combinations of different LEDs.
- the wavelength of the LEDs can range from less than 280 nm to more than 5000 nm depending on application.
- the power of the LEDs can range from less than 50 to more than 3000 mW/cm2.
- the LED light source is attached to a heat sink 205 using a fixture 206 with screw 207 .
- the cover 210 can be a simple protection cover, or an optical lens to shape or focus a light beam.
- the LED light source can contain its own heat sink so that heat sink 205 serves as a secondary heat sink for greater heat dissipation. Instead of an LED light source, a semiconductor laser or any other desired light source could be used.
- FIG. 3 depicts the curing of a tooth filling using a 3-dimensional curing light.
- a light head 301 is on top of a tooth structure 302 with a filling 303 in the tooth.
- Three LEDs on 3 facets emit light beams 304 , 305 , and 306 from three sides. This allows the 3 light beams to reach the filling material from 3 directions to cure it into a durable dental restoration. Even though the light beams 305 and 306 need to penetrate the tooth structure to reach the filling material, the resulting dental restoration will be stronger and more durable than a restoration cured from one side only.
Abstract
A curing light may include a housing sized and configured for placement over a tooth. A first facet positioned within the housing may have a first LED mounted thereon, a second facet positioned within the housing may have a second LED mounted thereon, and a third facet positioned within the housing may have a third LED mounted thereon.
Description
- This continuation application claims the benefit of and priority to U.S. patent application Ser. No. 12/776,695 titled THREE DIMENSIONAL CURING LIGHT filed on May 10, 2010 which is a continuation application of U.S. patent application Ser. No. 11/445,498 filed on Jun. 1, 2006 which claims priority to U.S. Provisional Patent Application Ser. No. 60/686,261 filed on Jun. 1, 2005. The content of each of the aforementioned applications is incorporated herein by reference in their entirety.
- The present invention relates to the field of curing lights and, more particularly, to the field of three-dimensional curing lights.
- Although teeth have a 3-dimensional shape, prior art dental curing lights all emit light that can only be applied to one side of a tooth at a time. Exposing the entire tooth to light emitted by a curing light uses up valuable dentist chair time.
- A 3-dimensional curing light is disclosed.
-
FIG. 1 depicts an example 3-dimensional curing light. -
FIG. 2 depicts a cross-sectional view of an example 3-dimensional curing light. -
FIG. 3 depicts another cross-sectional view of an example 3-dimensional curing light. - Three dimensional curing lights are disclosed that can emit light for polymerizing monomers into polymers from 3 sides of a tooth at the same time. This approach can also be used to enhance the properties of the cured dental composite, and to achieve a deeper cure.
-
FIG. 1 depicts a perspective view of a 3-dimensional curing light. Acontrol box 101 controls operation of the light. It includes adisplay 102,control buttons electrical cord 106 is attached to thecontrol box 101 to provide electrical power from an AC outlet. Acable 107 transfers electrical power from the control box to a 3-dimensionalcuring light head 108. The 3D curing light head has 3 facets, 109, 110, and 111. The 3 facets form a 3-dimensional channel Inside the channel, the light is emitted from the inside of the facets. Thelight beams -
FIG. 2 depicts a cross-sectional view of a 3-dimensional curing light head using LEDs as a light source. In the light head, there are 3 facets, 201, 202, and 203. Each facet has a similar structure and they are oriented at about 90 degrees to each other. The facets form a channel therebetween into which an object to be cured is placed. Each facet contains anLED light source 204. The LED light source can be a single LED, multiple LEDs, LED arrays, and combinations of different LEDs. The wavelength of the LEDs can range from less than 280 nm to more than 5000 nm depending on application. The power of the LEDs can range from less than 50 to more than 3000 mW/cm2. The LED light source is attached to a heat sink 205 using afixture 206 withscrew 207. There isheat conduction paste 208 located betweenLED 204 and heat sink 205 to facilitate heat transfer. There is aheat insulation layer 209 within the head housing to create an air gap between the heat sink and the outside casing so that the heat will not conducted to the outside casing. On the light-emitting side of the LEDs, there is aprotection cover 210 to cover the LEDs and protect them from damage and contaminants Thecover 210 can be a simple protection cover, or an optical lens to shape or focus a light beam. The LED light source can contain its own heat sink so that heat sink 205 serves as a secondary heat sink for greater heat dissipation. Instead of an LED light source, a semiconductor laser or any other desired light source could be used. -
FIG. 3 depicts the curing of a tooth filling using a 3-dimensional curing light. Alight head 301 is on top of atooth structure 302 with a filling 303 in the tooth. Three LEDs on 3 facets emitlight beams light beams - While the present invention has been described and illustrated in conjunction with a number of specific embodiments, those skilled in the art will appreciate that variations and modifications may be made without departing from the principles of the invention as herein illustrated, described, and claimed. The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects as only illustrative, and not restrictive. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (8)
1. A curing light, comprising:
a housing sized and configured for placement over a tooth;
a first facet positioned within the housing having a first LED mounted thereon, said first facet configured to face a crown of the tooth when the housing is placed over the tooth;
a second facet positioned within the housing having a second LED mounted thereon, said second facet configured to face a first exposed side of the tooth when the housing is placed over the tooth; and
a third facet positioned within the housing having a third LED mounted thereon, said third facet configured to face a second exposed side of the tooth when the housing is placed over the tooth, said second exposed side of the tooth being opposite of said first exposed side.
2. The curing light head of claim 1 , wherein each facet includes an outer surface and an inner surface spaced from said outer surface.
3. The curing light head of claim 2 , wherein each LED is positioned within a space defined by said outer surface spaced from said inner surface.
4. The curing light head of claim 3 , wherein each said LED is mounted on a heat sink.
5. The curing light head of claim 4 , wherein each said heat sink is spaced from said outer surface.
6. The curing light head of claim 5 , wherein an air gap is positioned between each said heat sink and said outer surface.
7. The curing light of claim 1 , wherein said second and third facets are oriented parallel to one another.
8. The curing light of claim 1 , wherein said first facet is oriented at about a ninety degree angle with respect to at least one of the second and third facets.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/078,119 US20160228227A1 (en) | 2005-06-01 | 2016-03-23 | Three-dimensional curing light |
US16/784,753 US20200170768A1 (en) | 2005-06-01 | 2020-02-07 | Three-dimensional curing light |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68626105P | 2005-06-01 | 2005-06-01 | |
US11/445,498 US20060275733A1 (en) | 2005-06-01 | 2006-06-01 | Three-dimensional curing light |
US12/776,695 US9295537B2 (en) | 2005-06-01 | 2010-05-10 | Three dimensional curing light |
US15/078,119 US20160228227A1 (en) | 2005-06-01 | 2016-03-23 | Three-dimensional curing light |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/776,695 Continuation US9295537B2 (en) | 2005-06-01 | 2010-05-10 | Three dimensional curing light |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/784,753 Continuation-In-Part US20200170768A1 (en) | 2005-06-01 | 2020-02-07 | Three-dimensional curing light |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160228227A1 true US20160228227A1 (en) | 2016-08-11 |
Family
ID=37494538
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/445,498 Abandoned US20060275733A1 (en) | 2005-06-01 | 2006-06-01 | Three-dimensional curing light |
US12/776,695 Active US9295537B2 (en) | 2005-06-01 | 2010-05-10 | Three dimensional curing light |
US15/078,119 Abandoned US20160228227A1 (en) | 2005-06-01 | 2016-03-23 | Three-dimensional curing light |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/445,498 Abandoned US20060275733A1 (en) | 2005-06-01 | 2006-06-01 | Three-dimensional curing light |
US12/776,695 Active US9295537B2 (en) | 2005-06-01 | 2010-05-10 | Three dimensional curing light |
Country Status (1)
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US (3) | US20060275733A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11116616B2 (en) | 2014-09-17 | 2021-09-14 | Garrison Dental Solutions, L.L.C. | Dental curing light |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6200134B1 (en) | 1998-01-20 | 2001-03-13 | Kerr Corporation | Apparatus and method for curing materials with radiation |
US7728345B2 (en) | 2001-08-24 | 2010-06-01 | Cao Group, Inc. | Semiconductor light source for illuminating a physical space including a 3-dimensional lead frame |
US8251689B2 (en) * | 2005-09-20 | 2012-08-28 | Summit Business Products, Inc. | Ultraviolet light-emitting diode device |
US7470921B2 (en) * | 2005-09-20 | 2008-12-30 | Summit Business Products, Inc. | Light-emitting diode device |
US20080064009A1 (en) * | 2006-09-13 | 2008-03-13 | Clark David J | Dental Separator Rings And A Seamless, Single Load Cavity Preparation And Filling Technique |
US8393897B2 (en) | 2007-11-07 | 2013-03-12 | David J. Clark | Methods and devices for diastema closure |
US7959282B2 (en) * | 2007-12-20 | 2011-06-14 | Summit Business Products, Inc. | Concentrated energy source |
US20090191506A1 (en) | 2008-01-29 | 2009-07-30 | Clark David J | Dental Composite Dispenser For Injection Molded Filling Techniques |
BR122019024420B8 (en) * | 2008-12-30 | 2021-06-22 | Ultradent Products Inc | dental healing light device |
US9072572B2 (en) | 2009-04-02 | 2015-07-07 | Kerr Corporation | Dental light device |
US9066777B2 (en) | 2009-04-02 | 2015-06-30 | Kerr Corporation | Curing light device |
JP2013017616A (en) * | 2011-07-11 | 2013-01-31 | Gc Corp | Polymerization apparatus for dental technology |
US20160077074A1 (en) | 2011-12-21 | 2016-03-17 | The Regents Of The University Of California | Interconnected corrugated carbon-based network |
WO2013134207A1 (en) | 2012-03-05 | 2013-09-12 | The Regents Of The University Of California | Capacitor with electrodes made of an interconnected corrugated carbon-based network |
US9358080B2 (en) | 2012-03-26 | 2016-06-07 | David J. Clark | Dental separator ring |
US8992224B2 (en) | 2012-08-15 | 2015-03-31 | Kerrhawe Sa | Scanning polymerization of dental material |
DE102014104993A1 (en) * | 2013-06-24 | 2014-12-24 | Qioptiq Photonics Gmbh & Co. Kg | Dental measuring device for the three-dimensional measurement of teeth |
US10211495B2 (en) | 2014-06-16 | 2019-02-19 | The Regents Of The University Of California | Hybrid electrochemical cell |
AU2015349949B2 (en) | 2014-11-18 | 2019-07-25 | The Regents Of The University Of California | Porous interconnected corrugated carbon-based network (ICCN) composite |
KR102631764B1 (en) | 2015-12-22 | 2024-01-30 | 더 리전트 오브 더 유니버시티 오브 캘리포니아 | Cellular graphene film |
JP7150328B2 (en) | 2016-01-22 | 2022-10-11 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | high voltage device |
KR102361374B1 (en) | 2016-03-23 | 2022-02-09 | 나노테크 에너지, 인크. | Devices and Methods for High Voltage and Solar Applications |
AU2017245151B2 (en) | 2016-04-01 | 2022-03-17 | The Regents Of The University Of California | Direct growth of polyaniline nanotubes on carbon cloth for flexible and high-performance supercapacitors |
US11097951B2 (en) | 2016-06-24 | 2021-08-24 | The Regents Of The University Of California | Production of carbon-based oxide and reduced carbon-based oxide on a large scale |
KR101664446B1 (en) * | 2016-08-02 | 2016-10-10 | 주식회사 비앤디네트웍스 | Optical Dental device |
CN109845004B (en) | 2016-08-31 | 2022-10-14 | 加利福尼亚大学董事会 | Devices including carbon-based materials and their manufacture |
USD810293S1 (en) | 2017-01-20 | 2018-02-13 | Garrison Dental Solutions, Llc | Dental instrument |
CA3067725A1 (en) | 2017-07-14 | 2019-01-17 | Volker Strauss | Simple route to highly conductive porous graphene from carbon nanodots for supercapacitor applications |
WO2021021958A1 (en) * | 2019-07-29 | 2021-02-04 | Cao Group, Inc | Curing light |
KR102318406B1 (en) * | 2019-09-23 | 2021-10-28 | 주식회사 루멘스 | Gum treatment device using LEDs |
US10938032B1 (en) | 2019-09-27 | 2021-03-02 | The Regents Of The University Of California | Composite graphene energy storage methods, devices, and systems |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080233541A1 (en) * | 2004-05-11 | 2008-09-25 | Remedent, Inc. | Method and Device for Enhancing the Treatment of Teeth and Gums |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4468197A (en) * | 1983-04-26 | 1984-08-28 | Wayne Provost | Apparatus and method for detecting cavities |
JPS6397175A (en) * | 1986-10-15 | 1988-04-27 | 森 敬 | Light irradiation apparatus for emitting tooth germ treating light |
US4790752A (en) * | 1987-01-30 | 1988-12-13 | Poly-Optical Products, Inc. | Illuminated dental impression tray |
US4867682A (en) * | 1987-11-13 | 1989-09-19 | Dentsply Research & Development Corp. | Dental impression tray |
US5316473A (en) * | 1988-06-17 | 1994-05-31 | Dentsply Research & Development Corp. | Light curing apparatus and method |
US5487662A (en) * | 1994-03-22 | 1996-01-30 | Minnesota Mining And Manufacturing Company | Dental impression tray for photocurable impression material |
US5718577A (en) * | 1996-03-15 | 1998-02-17 | Minnesota Mining & Manufacturing | Dental impression tray with chemiluminescent light source |
US5702250A (en) * | 1996-07-19 | 1997-12-30 | Minnesota Mining And Manufacturing Co. | Compact dental impression tray for photocurable impression material |
US6391283B1 (en) * | 1997-01-10 | 2002-05-21 | Ultradent Products, Inc. | Methods and apparatus for activating dental compositions |
US6162055A (en) * | 1998-02-13 | 2000-12-19 | Britesmile, Inc. | Light activated tooth whitening composition and method of using same |
US6077073A (en) * | 1998-09-15 | 2000-06-20 | Jacob; Gregory S. | Light emitting diode-array light apparatus |
US6755649B2 (en) * | 1999-09-24 | 2004-06-29 | Cao Group, Inc. | Curing light |
IE20000790A1 (en) * | 1999-10-01 | 2001-04-18 | Stockeryale Irl Ltd | Linear illumination |
US6497575B2 (en) * | 2000-03-27 | 2002-12-24 | Peter D. Zavitsanos | System and method for whitening teeth |
US6422868B1 (en) * | 2000-05-08 | 2002-07-23 | Ultradent Products, Inc. | In-office tooth whitening |
US6299441B1 (en) * | 2000-07-05 | 2001-10-09 | Unique Industries, Inc. | Chemiluminescent mouthpiece |
US6741410B2 (en) * | 2001-05-18 | 2004-05-25 | Ivoclar Vivadent Ag | Light resolution element for irradiating dental replacement pieces with light to effect the hardening thereof |
US6733290B2 (en) * | 2001-08-28 | 2004-05-11 | John West | Dental illumination device |
US6976841B1 (en) * | 2002-02-21 | 2005-12-20 | Nova Ranger, Inc. | Intra oral dental irradiation device for material curing and dental imaging |
US20050202363A1 (en) * | 2002-02-21 | 2005-09-15 | Osterwalder J. M. | Dental imaging and treatment system |
DE10320141B4 (en) * | 2003-05-06 | 2010-11-25 | Ivoclar Vivadent Ag | light polymerization |
US20050064371A1 (en) * | 2003-07-21 | 2005-03-24 | Soukos Nikos S. | Method and device for improving oral health |
US6893259B1 (en) * | 2004-03-08 | 2005-05-17 | Igor Reizenson | Oral hygiene device and method of use therefor |
CN101014295A (en) * | 2004-07-02 | 2007-08-08 | 底斯柯斯牙齿印模公司 | Curing light device having a reflector |
US20080032252A1 (en) * | 2004-08-25 | 2008-02-07 | Discus Dental Impressions, Llc | Illumination system for dental applications |
US20060061997A1 (en) * | 2004-09-20 | 2006-03-23 | Cao Group, Inc. | Serviceable, exchangeable LED assembly |
-
2006
- 2006-06-01 US US11/445,498 patent/US20060275733A1/en not_active Abandoned
-
2010
- 2010-05-10 US US12/776,695 patent/US9295537B2/en active Active
-
2016
- 2016-03-23 US US15/078,119 patent/US20160228227A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080233541A1 (en) * | 2004-05-11 | 2008-09-25 | Remedent, Inc. | Method and Device for Enhancing the Treatment of Teeth and Gums |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11116616B2 (en) | 2014-09-17 | 2021-09-14 | Garrison Dental Solutions, L.L.C. | Dental curing light |
Also Published As
Publication number | Publication date |
---|---|
US20100216089A1 (en) | 2010-08-26 |
US20060275733A1 (en) | 2006-12-07 |
US9295537B2 (en) | 2016-03-29 |
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