CA2562335A1 - Instrument for delivery of optical energy to the dental root canal system for hidden bacterial and live biofilm thermolysis - Google Patents
Instrument for delivery of optical energy to the dental root canal system for hidden bacterial and live biofilm thermolysis Download PDFInfo
- Publication number
- CA2562335A1 CA2562335A1 CA002562335A CA2562335A CA2562335A1 CA 2562335 A1 CA2562335 A1 CA 2562335A1 CA 002562335 A CA002562335 A CA 002562335A CA 2562335 A CA2562335 A CA 2562335A CA 2562335 A1 CA2562335 A1 CA 2562335A1
- Authority
- CA
- Canada
- Prior art keywords
- optical probe
- root canal
- radiation
- probe
- optical
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims abstract 30
- 230000001580 bacterial effect Effects 0.000 title 1
- 238000001149 thermolysis Methods 0.000 title 1
- 210000004746 tooth root Anatomy 0.000 title 1
- 239000000523 sample Substances 0.000 claims abstract 33
- 238000000034 method Methods 0.000 claims abstract 20
- 210000004262 dental pulp cavity Anatomy 0.000 claims abstract 19
- 230000005855 radiation Effects 0.000 claims abstract 17
- 241000894006 Bacteria Species 0.000 claims abstract 8
- 238000003780 insertion Methods 0.000 claims abstract 4
- 230000037431 insertion Effects 0.000 claims abstract 4
- 239000006185 dispersion Substances 0.000 claims abstract 3
- 230000008029 eradication Effects 0.000 claims abstract 2
- 208000015181 infectious disease Diseases 0.000 claims 11
- 239000013307 optical fiber Substances 0.000 claims 5
- 230000005540 biological transmission Effects 0.000 claims 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 3
- 229910052594 sapphire Inorganic materials 0.000 claims 3
- 239000010980 sapphire Substances 0.000 claims 3
- 229910052726 zirconium Inorganic materials 0.000 claims 3
- 241000186046 Actinomyces Species 0.000 claims 1
- 241000606125 Bacteroides Species 0.000 claims 1
- 241000194033 Enterococcus Species 0.000 claims 1
- 241000186394 Eubacterium Species 0.000 claims 1
- 241000605909 Fusobacterium Species 0.000 claims 1
- 241000186660 Lactobacillus Species 0.000 claims 1
- 241000191992 Peptostreptococcus Species 0.000 claims 1
- 241000605861 Prevotella Species 0.000 claims 1
- 241000186429 Propionibacterium Species 0.000 claims 1
- 241000194017 Streptococcus Species 0.000 claims 1
- 238000001804 debridement Methods 0.000 claims 1
- 229940039696 lactobacillus Drugs 0.000 claims 1
- 244000000010 microbial pathogen Species 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 108091092889 HOTTIP Proteins 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000000015 thermotherapy Methods 0.000 abstract 1
- 210000005239 tubule Anatomy 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/0046—Dental lasers
-
- 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
- A61C5/40—Implements for surgical treatment of the roots or nerves of the teeth; Nerve needles; Methods or instruments for medication of the roots
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
- A61N5/0624—Apparatus adapted for a specific treatment for eliminating microbes, germs, bacteria on or in the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/067—Radiation therapy using light using laser light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0651—Diodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N5/0613—Apparatus adapted for a specific treatment
Abstract
A system and process for thermolytic eradication of bacteria and biofilm in the root canal (22) of a human tooth involve an elongated and flexible optical probe(20)and a 5 laser oscillator (28) that provides the probe with low infrared energy. The optical probe is sufficiently long for insertion into substantially the entire length of the root canal of the tooth. The optical probe causes lateral dispersion of the radiation from the probe throughout the root canal. The radiation is provided at an energy density and for a period of time that are necessary to selectively target bacteria and live biofilm in the dentinal tubules of an entire root canal system, at once, thereby (a) inhibiting creation of a blackbody "hot tip" and (a) inducing laser interstitial thermotherapy (LITT) within the root-canal space.
Claims (22)
1. A system for the thermolytic eradication of bacteria and biofilm in the root canal of a human tooth, said system comprising an elongated and flexible optical probe, a laser oscillator communicating with the distal end of said optical probe through at least one optical fiber, a power supply operatively connected to said laser oscillator, and a control operatively connected to said power supply and said laser oscillator:
(a) said optical probe being composed of a member of the class consisting of sapphire and zirconium, and having an optically diffusive surface dispersing optical energy throughout 3600 laterally of said optical probe and along the entire length of said optical probe;
(b) said optical fiber ranging in diameter between 400 µm to 1000 µm;
(c) said optical probe ranging in diameter from ISO 20 to ISO 70;
(d) said laser oscillator generating radiation in the low infrared wavelength range of 700 nm to 1100 nm;
(e) said optical fiber being operatively connected between said laser oscillator and an ingress at the proximal end of said optical probe;
(f) said optical probe being sufficiently long for insertion into substantially the entire length of the root canal of said tooth;
(g) said optical probe causing lateral dispersion of said radiation from said probe throughout said root canal; and (h) said control energizing said laser oscillator for dispersion of said radiation at an energy density and for a period of time that are necessary to destroy said bacteria in said root canal.
(a) said optical probe being composed of a member of the class consisting of sapphire and zirconium, and having an optically diffusive surface dispersing optical energy throughout 3600 laterally of said optical probe and along the entire length of said optical probe;
(b) said optical fiber ranging in diameter between 400 µm to 1000 µm;
(c) said optical probe ranging in diameter from ISO 20 to ISO 70;
(d) said laser oscillator generating radiation in the low infrared wavelength range of 700 nm to 1100 nm;
(e) said optical fiber being operatively connected between said laser oscillator and an ingress at the proximal end of said optical probe;
(f) said optical probe being sufficiently long for insertion into substantially the entire length of the root canal of said tooth;
(g) said optical probe causing lateral dispersion of said radiation from said probe throughout said root canal; and (h) said control energizing said laser oscillator for dispersion of said radiation at an energy density and for a period of time that are necessary to destroy said bacteria in said root canal.
2. The system of claim 1 wherein said period of time is sufficient to destroy pathogenic microorganisms in said root canal.
3. The system of claim 1 wherein said laser oscillator is a diode and said radiation is continuous mode radiation.
4. The system of claim 1 wherein said laser oscillator is a diode and said radiation is gated continuous mode radiation.
5. The system of claim 1 wherein said laser oscillator is a Nd:YAG laser and said radiation is free running pulsed mode radiation.
6. A process for treatment of the root canal of a human tooth, said process comprising:
(a) preliminary removal of bacteria and biofilm from the entire elongated space of said root canal;
(b) debridement of said entire elongated space;
(c) insertion of an elongated optical probe into said entire elongated space;
(d) transmission of low infrared radiation longitudinally into the entire length of said optical probe and laterally through the surface of said elongated probe to the surface of said root canal defining said space, and through the dentinals adjoining said root canal;
(e) said transmission being of sufficient energy density and sufficient time duration to destroy remnants of said bacteria and biofilm in and adjacent to said root canal; and (f) obturation of said space with an apical seal.
(a) preliminary removal of bacteria and biofilm from the entire elongated space of said root canal;
(b) debridement of said entire elongated space;
(c) insertion of an elongated optical probe into said entire elongated space;
(d) transmission of low infrared radiation longitudinally into the entire length of said optical probe and laterally through the surface of said elongated probe to the surface of said root canal defining said space, and through the dentinals adjoining said root canal;
(e) said transmission being of sufficient energy density and sufficient time duration to destroy remnants of said bacteria and biofilm in and adjacent to said root canal; and (f) obturation of said space with an apical seal.
7. The process of claim 6 wherein said optical probe is composed of a member of the class consisting of sapphire and zirconium.
8. The process of claim 6 wherein said optical probe has an optically diffusive surface dispersing optical energy throughout 3600 laterally of said optical probe and along the entire length of said optical probe.
9. The process of claim 6 wherein said radiation is transmitted from said laser to said probe via at least one optical fiber ranging in diameter between 400 µm to 1000 µm.
10. The process of claim 6 wherein said optical probe ranges in diameter from ISO 20 to ISO 70.
11. The process of claim 6 wherein said laser oscillator generates radiation in the low infrared wavelength range of 700 nm to 1100 nm.
12. A process for treatment of an infection in the root canal of a human tooth, said process comprising:
(a) mechanical and chemical removal of bacteria and biofilm from the elongated space of said root canal;
(b) mechanical shaping of said elongated space;
(c) insertion of an elongated optical probe into said elongated space;
(d) transmission of low infrared radiation longitudinally into the entire length of said optical probe and laterally through the surface of said elongated probe to the surface of said root canal defining said space;
(e) said transmission being of sufficient energy density and sufficient time duration to destroy remnants of said bacteria and biofilm in and adjacent to said root canal; and (f) obturation of said space with an apical seal.
(g) said optical probe being composed of a member of the class consisting of sapphire and zirconium;
(h) said optical probe having an optically diffusive surface dispersing optical energy throughout 3600 laterally of said optical probe and along substantially the entire length of said optical probe;
(i) said radiation being transmitted from said laser to said probe via at least one optical fiber ranging in diameter between 400 µm to 1000 µm;
(j) said optical probe ranging in diameter from ISO 20 to ISO 70;
(k) said laser oscillator generating radiation in the low infrared wavelength range of 700 nm to 1100 nm.
(a) mechanical and chemical removal of bacteria and biofilm from the elongated space of said root canal;
(b) mechanical shaping of said elongated space;
(c) insertion of an elongated optical probe into said elongated space;
(d) transmission of low infrared radiation longitudinally into the entire length of said optical probe and laterally through the surface of said elongated probe to the surface of said root canal defining said space;
(e) said transmission being of sufficient energy density and sufficient time duration to destroy remnants of said bacteria and biofilm in and adjacent to said root canal; and (f) obturation of said space with an apical seal.
(g) said optical probe being composed of a member of the class consisting of sapphire and zirconium;
(h) said optical probe having an optically diffusive surface dispersing optical energy throughout 3600 laterally of said optical probe and along substantially the entire length of said optical probe;
(i) said radiation being transmitted from said laser to said probe via at least one optical fiber ranging in diameter between 400 µm to 1000 µm;
(j) said optical probe ranging in diameter from ISO 20 to ISO 70;
(k) said laser oscillator generating radiation in the low infrared wavelength range of 700 nm to 1100 nm.
13. The process of claim 12 wherein the infection includes Fusobacterium.
14. The process of claim 12 wherein the infection includes Peptostreptococcus.
15. The process of claim 12 wherein the infection includes Eubacterium.
16. The process of claim 12 wherein the infection includes Prevotella.
17. The process of claim 12 wherein the infection includes Lactobacillus.
18. The process of claim 12 wherein the infection includes Streptococcus.
19. The process of claim 12 wherein the infection includes Bacteroides.
20. The process of claim 12 wherein the infection includes Enterococcus.
21. The process of claim 12 wherein the infection includes Actinomyces.
22. The process of claim 12 wherein the infection includes Propionibacterium.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/821,442 US7470124B2 (en) | 2003-05-08 | 2004-04-09 | Instrument for delivery of optical energy to the dental root canal system for hidden bacterial and live biofilm thermolysis |
| US10/821,442 | 2004-04-09 | ||
| PCT/US2004/020520 WO2005102033A2 (en) | 2004-04-09 | 2004-06-25 | Instrument for delivery of optical energy to the dental root canal system for hidden bacterial and live biofilm thermolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2562335A1 true CA2562335A1 (en) | 2005-11-03 |
| CA2562335C CA2562335C (en) | 2011-05-17 |
Family
ID=35197458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2562335A Expired - Fee Related CA2562335C (en) | 2004-04-09 | 2004-06-25 | Instrument for delivery of optical energy to the dental root canal system for hidden bacterial and live biofilm thermolysis |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US7470124B2 (en) |
| EP (2) | EP1732463B1 (en) |
| JP (1) | JP2007532176A (en) |
| CN (1) | CN101060816A (en) |
| AT (1) | ATE437612T1 (en) |
| AU (1) | AU2004318667A1 (en) |
| CA (1) | CA2562335C (en) |
| DE (1) | DE602004022336D1 (en) |
| ES (1) | ES2330939T3 (en) |
| HK (1) | HK1100387A1 (en) |
| WO (1) | WO2005102033A2 (en) |
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-
2004
- 2004-04-09 US US10/821,442 patent/US7470124B2/en not_active Expired - Fee Related
- 2004-06-25 ES ES04756164T patent/ES2330939T3/en active Active
- 2004-06-25 JP JP2007507292A patent/JP2007532176A/en active Pending
- 2004-06-25 CN CNA2004800432442A patent/CN101060816A/en active Pending
- 2004-06-25 DE DE602004022336T patent/DE602004022336D1/en active Active
- 2004-06-25 WO PCT/US2004/020520 patent/WO2005102033A2/en active Application Filing
- 2004-06-25 EP EP04756164A patent/EP1732463B1/en not_active Not-in-force
- 2004-06-25 AU AU2004318667A patent/AU2004318667A1/en not_active Abandoned
- 2004-06-25 CA CA2562335A patent/CA2562335C/en not_active Expired - Fee Related
- 2004-06-25 EP EP09166317A patent/EP2127611A1/en not_active Withdrawn
- 2004-06-25 AT AT04756164T patent/ATE437612T1/en not_active IP Right Cessation
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- 2007-06-18 HK HK07106555.7A patent/HK1100387A1/en not_active IP Right Cessation
- 2007-08-20 US US11/841,348 patent/US20080138772A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU2004318667A1 (en) | 2005-11-03 |
| JP2007532176A (en) | 2007-11-15 |
| EP1732463A4 (en) | 2007-08-22 |
| ATE437612T1 (en) | 2009-08-15 |
| HK1100387A1 (en) | 2007-09-21 |
| DE602004022336D1 (en) | 2009-09-10 |
| EP1732463A2 (en) | 2006-12-20 |
| WO2005102033A2 (en) | 2005-11-03 |
| US20040224288A1 (en) | 2004-11-11 |
| US7470124B2 (en) | 2008-12-30 |
| US20080138772A1 (en) | 2008-06-12 |
| ES2330939T3 (en) | 2009-12-17 |
| EP2127611A1 (en) | 2009-12-02 |
| CN101060816A (en) | 2007-10-24 |
| EP1732463B1 (en) | 2009-07-29 |
| CA2562335C (en) | 2011-05-17 |
| WO2005102033A3 (en) | 2006-02-02 |
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