Dental imaging and treatment system

• US 20050202363A1
• Filed: 02/10/2005
• Published: 09/15/2005
• Est. Priority Date: 02/21/2002
• Status: Abandoned Application

• Current Assignee: Nova Ranger Incorporated
• Original Assignee: Nova Ranger Incorporated
• Inventors: Osterwalder, J. Martin
• Application Number:
  US11/054,986
• Publication Number:
  US 20050202363A1
• Time in Patent Office: Days
• US Class Current: 433/29
• CPC Class Codes: A61C 19/004 Hand-held apparatus, e.g. guns
• CPC Class Codes: A61C 19/063 Medicament applicators for teeth or gums, e.g. treatment with fluorides
• CPC Class Codes: A61C 19/066 Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips
• CPC Class Codes: A61C 9/0006 Impression trays
• CPC Class Codes: A61C 9/004 Means or methods for taking digitized impressions
• CPC Class Codes: A61C 9/0053 Optical means or methods, e.g. scanning the teeth by a laser or light beam

Abstract

An intra-oral dental irradiation device for use in dental procedures for whitening teeth, imaging teeth, and making impressions of tooth structures of a patient. The device features one or a plurality of LED devices mounted to an arched shaped structure which project light upon or through teeth. In the whitening mode the light of the proper spectrum to activate enamel whitening material is projected. In the imaging mode light projected by the LED devices is received by a charged coupled device which communicates the image of the light passing through the teeth from the LED devices, to a computer. In making dental impressions, the device projects light in a spectrum that provides the catalyst to material that hardens when exposed to that spectrum thereby hardening dental impression material when inserted over the teeth of a patient.

Claims

1. A system for irradiating an object with electromagnetic energy which comprises:

a base member positionable in a predetermined orientation relative to the object;

an optical emitter mounted on said base member for generating a beam of electromagnetic energy;

a mirror mounted on said base member for directing the beam of electromagnetic energy from the emitter along a predetermined path for incidence at a location on the object; and

a computer means electronically connected with said mirror for selectively moving the mirror to sequentially redirect the beam of electromagnetic energy along a plurality of discreet beam paths to a respective plurality of different locations in a raster on the object.

2. A system as recited in claim 1 wherein the object is translucent and said system further comprises:

a detector engageable with said base member to position said detector on the beam path and establish a gap between said mirror and said detector for receiving the object therein and for placing the object in the path of the beam, wherein said detector activates to generate a signal in response to electromagnetic energy in the beam, and further wherein the signal generated by said detector is indicative of material in the object on the beam path; and

a monitoring means electronically connected with said detector to receive the plurality of discreet signals generated by the beam on respective beam paths, and to use the signals for creating a display image of the object.

3. A system as recited in claim 2 wherein the beam of electromagnetic energy comprises a plurality of energy pulses.

4. A system as recited in claim 3 wherein the plurality of energy pulses in the beam are generated at a repetition rate of approximately 3 MHz, and wherein each energy pulse is generated at substantially a peak power output from said optical emitter.

5. A system as recited in claim 2 wherein said optical emitter comprises at least one laser diode and said laser diode generates an electromagnetic beam of collimated blue light.

6. A system as recited in claim 5 wherein said detector is an LED chip.

7. A system as recited in claim 5 wherein said optical emitter comprises:

a red laser diode;

a green laser diode; and

a blue laser diode;

and further wherein said detector comprises;

a first LED chip responsive to said red laser diode;

a second LED chip responsive to said green laser diode; and

a third LED chip responsive to said blue laser diode.

8. A system as recited in claim 2 wherein said mirror is a Micro Electro-Mechanical-Systems (MEMS) mirror, and said mirror has a substantially flat reflective surface approximately 1.6 by 1.6 mm square.

9. A system as recited in claim 1 wherein the object is a tooth, and the raster includes at least one hundred thousand of said locations (100,000).

10. A system as recited in claim 1 further comprising:

a detector engageable with said base member for receiving the beam after the beam has been incident on the object, wherein said detector activates to generate a signal in response to electromagnetic energy in the beam; and

a monitoring means electronically connected with said detector to receive the plurality of discreet signals generated by the beam on respective beam paths and to use the signals for moving the mirror to direct the beam through the raster.

11. A system for irradiating an object with electromagnetic energy which comprises:

a laser means for generating a beam of collimated light;

a mirror for directing the beam of collimated light from the laser means along a predetermined path for incidence at a location on the object;

a computer means electronically connected with said mirror for selectively moving the mirror to sequentially redirect the beam of collimated light along a plurality of discreet beam paths to a respective plurality of different locations in a raster on the object;

a detector means engageable with said base member for receiving the beam after the beam has been incident on the object, wherein said detector activates to generate a signal in response to the collimated light of the beam; and

a monitoring means electronically connected with said detector to receive the plurality of discreet signals generated by the beam on respective beam paths and to use the signals for moving the mirror to direct the beam through the raster.

12. A system as recited in claim 11 wherein the object is translucent and further wherein the detector means is positioned to establish a gap between said mirror and said detector means for receiving the object therein and for placing the object in the path of the beam, and wherein the signal generated by said detector means is indicative of material in the object on the beam path, and the monitoring means uses the signals to create a display image of the object.

13. A system as recited in claim 12 wherein the beam of electromagnetic energy comprises a plurality of energy pulses generated at a repetition rate of approximately 3 MHz, and wherein each energy pulse is generated at substantially a peak power output from said laser means.

14. A system as recited in claim 12 wherein said laser means is a laser diode and said detector means is an LED chip.

15. A system as recited in claim 12 wherein said laser means comprises:

a red laser diode;

a green laser diode; and

a blue laser diode;

and further wherein said detector means comprises;

a first LED chip responsive to said red laser diode;

a second LED chip responsive to said green laser diode; and

a third LED chip responsive to said blue laser diode.

16. A system as recited in claim 12 wherein said mirror is a Micro Electro-Mechanical-Systems (MEMS) mirror, and said mirror has a substantially flat reflective surface approximately 1.6 by 1.6 mm square, and further wherein the object is a tooth, and the raster includes at least one hundred thousand of said locations (100,000).

17. A method for irradiating an object which comprises the steps of:

generating a beam of collimated light with at least one laser diode, wherein the beam comprises a plurality of energy pulses generated at a repetition rate of approximately 3 MHz, and wherein each energy pulse is generated at substantially a peak power output from said laser diode;

directing the beam of collimated light, with a mirror, along a predetermined path for incidence at a location on the object;

moving the mirror to sequentially redirect the beam of collimated light along a plurality of discreet beam paths to a respective plurality of different locations in a raster on the object;

detecting the beam, after the beam has been incident on the object, to generate a plurality of discrete signals in response to the collimated light of the beam on corresponding beam paths; and

using the signals to move the mirror to direct the beam through the raster.

18. A method as recited in claim 17 wherein the object is translucent and the generated signals are indicative of material in the object on the beam path, and further wherein said using step includes using the signals to create a display image of the object.

19. A method as recited in claim 17 wherein said generating step is accomplished with:

a red laser diode;

a green laser diode; and

a blue laser diode;

and further wherein said detecting step is accomplished with;

a first LED chip responsive to said red laser diode;

a second LED chip responsive to said green laser diode; and

a third LED chip responsive to said blue laser diode.

20. A method as recited in claim 17 wherein said mirror is a Micro Electro-Mechanical-Systems (MEMS) mirror, and said mirror has a substantially flat reflective surface approximately 1.6 by 1.6 mm square, and further wherein the object is a tooth, and the raster includes at least one hundred thousand of said locations (100,000).