Dentistry – Method or material for testing – treating – restoring – or... – Endodontic
Patent
1993-09-30
1996-04-02
O'Connor, Cary E.
Dentistry
Method or material for testing, treating, restoring, or...
Endodontic
433 29, 433102, A61C 510, A61C 100
Patent
active
055035590
ABSTRACT:
An endodontic apparatus and related method for the instant detection of the anatomical structure of a tooth and for the restoration of a dead or severely decayed tooth using induced fluorescence spectroscopy. A root canal probe having an optical fiber through its center transmits excitation light into the tooth's root canal. The excitation light induces the tissue within the root canal to fluoresce. The fluorescent light is collected by the optical fiber and transmitted back to a sensor that generates electrical signals indicative of the intensity of light within predetermined wavelength bands. The electrical signals are processed to identify the tissues within the root canal. The probe may include a slightly conical metal surface having flutes for shaving and removing dentin from within the root canal. Using the fluorescent emission properties of the tissues of components of a tooth, the entrance of the root canal is located. The root canal is cleaned and shaped and the apex of the root canal located using the difference between the fluorescence spectrum of the apex and the root canal. The root canal is sealed and filled by a light cure restorative delivered into the root canal through a tube. The light cure restorative is activated by light transmitted into the root canal by an optical fiber. The light activation and polymerization of the light cure restorative can be controlled by monitoring the intensity of the restorative's fluorescence spectrum.
REFERENCES:
patent: 3313290 (1963-08-01), Chance et al.
patent: 3590232 (1971-06-01), Sadowski
patent: 3614414 (1971-09-01), Gores
patent: 3706612 (1971-10-01), Clemens
patent: 3789506 (1974-02-01), Johns
patent: 3830222 (1974-08-01), Chance
patent: 3975098 (1976-08-01), West
patent: 4162405 (1979-07-01), Chance et al.
patent: 4170987 (1979-10-01), Anselmo et al.
patent: 4178917 (1979-12-01), Shapiro
patent: 4184175 (1980-01-01), Mullane, Jr.
patent: 4212639 (1980-07-01), Schaffner
patent: 4236526 (1980-12-01), Richard
patent: 4412543 (1983-11-01), Vassiliadis et al.
patent: 4449535 (1984-05-01), Renault
patent: 4479499 (1984-10-01), Alfano
patent: 4569354 (1986-02-01), Shapiro et al.
patent: 4608990 (1986-09-01), Elings
patent: 4629693 (1985-12-01), Khanna
patent: 4631413 (1986-12-01), Jensen et al.
patent: 4675529 (1987-06-01), Kushida
patent: 4818229 (1989-04-01), Vasile
patent: 4894547 (1990-01-01), Leffell et al.
patent: 4930516 (1990-06-01), Alfano et al.
patent: 4951669 (1928-08-01), Maxwell et al.
patent: 4957114 (1990-09-01), Zeng et al.
patent: 4979900 (1990-12-01), Okamoto et al.
patent: 4981138 (1991-01-01), Deckelbaum et al.
patent: 4981779 (1991-01-01), Wagner
patent: 5001054 (1991-05-01), Wagner
patent: 5007837 (1991-04-01), Werly
patent: 5014707 (1991-05-01), Schwartz
patent: 5034189 (1991-07-01), Cox et al.
patent: 5037738 (1991-08-01), Lamos et al.
patent: 5042494 (1991-08-01), Alfano
patent: 5046501 (1991-10-01), Crilly
patent: 5072373 (1991-12-01), Taratuta et al.
patent: 5074306 (1991-12-01), Green et al.
patent: 5092773 (1992-03-01), Levy
patent: 5093266 (1992-03-01), Leader et al.
patent: 5098298 (1992-03-01), Johnson
patent: 5115137 (1992-05-01), Anderson-Engels et al.
patent: 5116227 (1992-05-01), Levy
patent: 5127405 (1992-07-01), Alcala et al.
patent: 5151029 (1992-09-01), Levy
patent: 5172693 (1992-12-01), Doody
patent: 5209231 (1993-05-01), Cote et al.
patent: 5217456 (1993-08-01), Narcisco, Jr.
patent: 5284443 (1994-02-01), Weil
patent: 5286193 (1994-02-01), Roane
Hartles et al., "The Identification of Pyrimidines in the Fluorescing Fractions of the Teeth of the Sperm Whale," J. D. Res., vol. 34, No. 6, Dec. 1955, pp. 820-830.
Hoerman et al., "Fluorometric Demonstration of Tryptophan in Dentin and Bone Protein," J. Dent. Res., vol. 43, No. 2, 3-4/64, pp. 276-280.
Fukushima et al., "Topography of Fluorescence and its Possible Composites in Human Teeth," Cell. & Molec. Bio., vol. 33(3), 1987, pp. 725-736.
Kvaal et al., "Fluorencence from detin and cementum in human mandibular second premolars and its relation to age," Scand. J. Dent. Res., 1989, pp. 97:131-138.
Per Torell, "Iron and Dental Caries," Sweden Dental Journal, 1988, pp. 12:113-124.
Hafstrom-Bjorkman et al., "Comparison of Laser Fluor. & Longitudinal Microradiography for Quantitative Assess. of in vitro Enamel Caries," Caries Res., 1992, 26:241-247.
Giunta et al., "Dentin formation in miniature pigs with special ref. to indomethacin and orthodontic treatment," Scandinavian J. of Dent. Res., 1993, 101:261-264.
Feghali-Assaly et al., "Cytokeratin profile of the junctional epithelium in partially erupted teeth," J. Periodont Res. 1994, 29:185-195.
Parker et al., "Metabolism of .sup.3 H!-Noradrenaline in Human Dental Pulp in Vitro," Archs oral Biol. vol. 39, No. 1, 1994, pp. 43-49.
Yoshiba et al., "A Confocal Laser Scanning Microscopic Study, etc.," Niligata Univ. School of Dent., Japan, Archs oral Biol. vol. 39, No. 5, 1994, pp. 395-400.
Patent Abstracts of Japan, vol. 015, No. 302 (C-0855), Aug. 2, 1991 & JP, A,03112549 (Matsutani Seisakusho), May 14, 1995.
Katsura et al., "Unitraviolet Absorption of Human Teeth as Revealed by Microphotomety," ACTA Histochem, Cytochem, vol. 7, No. 4, 1974, pp. 328-333.
Horibe et al., "Multiple Distribution of the Fluorescence in Human Teeth," ACTA Histochem, Cytochem, vol. 7, No. 4, 1984, pp. 334-341.
Willenborg, "Dental Laser Applications: Emerging to Maturity," Lasers in Surgery and Medicine, vol. 9 pp. 309-313 (1989).
Hibst et al., "Experimental Studies of the Application of the Er: YAG Laser on Dental Hard Substances," Lasers in Surgery & Medicine, vol. 9, pp. 338-351 (1989).
Pini et al., "Laser Dentistry: A New Application of Eximer Laser in Root Canal Therapy," Lasers in Surgery and Medicine, vol. 9, pp. 352-357 (1989).
Pini et al., "Laser Dentistry: Root Canal Diagnostic Technique Based on Ultraviolet-Induced Fluorescence Spectroscopy," Lasers in Surgery and Medicine, vol. 9, pp. 358-361 (1989).
Myers, "Emergence of Lasers in Dentistry," CDA Journal, vol. 19, No. 3, Mar. 1991, pp. 53-58.
Buchanan, "Paradigm Shifts In Cleaning and Shaping," CDA Journal, vol. 19, No. 5, May 1991, pp. 23-34.
Goon, "Managing the Obstructed Root Canal Space," CDA Journal, vol. 19, No. 5, May 1991, pp. 51-60.
Chess, "Laser Dentistry," CDA Journal, vol. 19, No. 11, Nov. 1991, pp. 19-23.
Myers, et al. "The Pulsed Nd: YAG Dental Laser," CDA Journal, vol. 19, No. 11, Nov. 1991, pp. 25-30.
Zakariasen, "Dental Lasers and Science," CDA Journal, vol. 19, No. 11, Nov. 1991, pp. 31-36.
Smith, "Patient Response to Dental Laser Treatment," CDA Journal, vol. 19, No. 11, Nov. 1991, pp. 37-41.
Parkins et al., "YAG Laser Treatment in Pediatric Centistry," CDA Journal, vol. 19, No. 11, Nov. 1991, pp. 43-50.
Kutsch et al., "Guided Tissue Regeneration by Intermittent Nd: YAG Laser De-Epithelialization," vol. 19, No. 11 Nov. 1991, pp. 52-58.
Biswas, "Optical Fiber Coatings for Biomedical Applications," Optical Engineering, vo. 31, No. 7, Jul. 1992, pp. 1400-1403.
Paghdiwala, "Does the Laser Work on Hard Dental Tissue?", J. Am. Dental Assoc., Jan. 1991, pp. 1, 79-80.
"Substance Identification Neural Network," Physical Optical Corp. product information, Date: unknown.
Dental Supply Cataog, Winter/Spring 1991, pp. 1, 72-73, 93.
Bassnett et al., "Intracellular pH measurement using single excitation-dual emission fluorescence ratios," Am. J. Physiol. 258, 1990, pp. C171-C178.
Ring et al., "In-Vitro Evaluation of New Fiber Optic pH, Carbon Dioxide, and Oxygen Sensor Systems," Date: unknown, 10 pages.
Ring et al., "In-Vitro Evaluation of New Fiber Optic pH, Carbon Dioxide and Oxygen Sensor Systems," SPIE OE Laser '92, Conf. 1648, Jan. 92, 11 pages.
Green et al., "Burn Depth Estimation Using Indocyanine Green Fluorescence Arch Dermatol," vol. 128, Jan. 1992, pp. 43-49.
Moneta et al., "Infrared Fluorescence Videomicroscopy of Sking Capillaries With Indocynine Green," Int. J. Microcirc. Clin. Exp., pp. 25-34, (1987).
Gotti et al., "Evaluation of the Burn Wound with Perfusion Fluorometry," J. Trauma vol. 23, No. 3, Mar. 1983, pp. 202-206.
Afromowitz et al
Cedars-Sinai Medical Center
Fawcett Robroy R.
O'Connor Cary E.
Poplawski Edward G.
LandOfFree
Fiber-optic endodontic apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fiber-optic endodontic apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber-optic endodontic apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2013332