The present invention is directed to a system and method for photoeradication of microorganisms from a target. The method includes the step of obtaining test data for a plurality of experiments each of which comprises irradiating test microorganisms with a plurality of light pulses having a wavelength that ranges from 380 nm to 500 nm. The light pulses have a plurality of pulse parameters (peak irradiance, pulse duration, and off time between adjacent light pulses) and are provided at a radiant exposure that ranges from 0.5 J/cm.sup.2 to 60 J/cm.sup.2 during each of a plurality of irradiation sessions. The test data comprises a survival rate for the test microorganisms after irradiation with the light pulses. The method also includes the step of analyzing the test data to identify the pulse parameters for the light pulses and the radiant exposure for each of the irradiation sessions that result in a desired survival rate for the test microorganisms. The method further includes the step of irradiating the microorganisms of the target with light pulses having the identified pulse parameters at the identified radiant exposure for each of the irradiation sessions so as to photoeradicate all or a portion of the microorganisms.

A toothbrush having one or more light sources with an electronic interlock control device preventing operation of the light source when the toothbrush is removed from the user's mouth. The electronic interlock control over operation is necessary to prevent accidental eye exposure to the high intensity light source with a wavelength in the range of about 400 nm to about 1000 nm. The light-emitting toothbrush activates upon entering the user's mouth but deactivates immediately when removed, thus protecting the user's eyes from direct exposure to the high power light source contained in the brush head.

A multi-phase oral composition for whitening teeth.

A method treating a root canal in a tooth by introducing into the pulp chamber of a tooth and pulsing a laser light into the fluid reservoir so as to disintegrate pulp within the root canal without generation of any significant heat in said liquid fluid so as to avoid elevating the temperature of any of the dentin, tooth, or other adjacent tissue more than about 5° C.

Disclosed is a wireless induction power supply type light-up electric toothbrush, including a toothbrush handle body, a main body support, a mainboard, a battery, a motor, a motor sleeve, a waterproof ring, a toothbrush handle cover plate, a toothbrush head cover plate, a toothbrush head rod and a toothbrush head, wherein the toothbrush head is further provided with bristles and a toothbrush head LED panel arranged with several toothbrush head LED lamps. The toothbrush is added with a healthcare function through LED lamps, and the toothbrush head LED lamps are powered up in a wireless manner.

Intraoral phototherapy devices receive light from an associated light source and propagate the light into an oral cavity of a patient. The device comprises a light guide that receives light from an external light source. The light guide comprises a main body portion made of an optically transparent soft flexible biocompatible polymeric material sized and shaped to conform to contours of the oral cavity when inserted therein to direct the light to targeted regions of the oral cavity. The main body portion comprises a pair of spaced apart side wings sized and shaped to be received between a patient's teeth and cheeks on opposite sides of the oral cavity and a center flap intermediate the side wings for transmitting and directing the light to targeted regions of the oral cavity. A controller delivers light to the light guide in a controlled manner.

There is provided a method of biofilm reduction from the tongue which includes the steps of applying water to a selected area of biofilm and applying an Er, CR:YSGG solid state laser to the selected biofilm area from a hand held device. The method includes generating cavitation to the selected area of biofilm by the application of water and the application of the Er, CR:YSGG solid state laser to result in biofilm disruption without tissue injury. The biofilm disruption produces a reduction of the biofilm over a period of time, with a reduction in aerobic and anaerobic bacteria. A comparison of digital image analyses of tongue coatings over a period of time can determine the reduction in biofilm.

The present application is directed to systems, devices, and methods for diagnosing, preventing, and treating diseases and disorders through photobiomodulation therapy, either alone or in combination with one or more other therapies. More particularly, the present invention provides photon source devices configured to deliver light to a portion of an organism, which causes a physiological response within that light exposed organism. The invention also provides a system which includes one or more photon source devices and functionality for diagnosing or assessing a disease or disorder, and for monitoring responsiveness of the disease or disorder to treatment with the therapeutic light. Additionally, this application is directed to utilizing the present systems and devices in combination with known adjunctive therapies including devices, services, drugs, biologics, genetics and supplements to produce synergistic optimal therapeutic outcomes.

A bacteria removal laser is provided, especially for removing caries bacteria from natural or prosthetic teeth, the prosthetic teeth also being treated via extraoral approach, having a gripping handle, a laser radiation source, an application optics having a predetermined radiation exit surface, especially a radiation guide rod through which laser radiation passes, and an energy source such as a mains connection or an accumulator. The laser emits in the wavelength range between 2200 nm and 4000 nm and is especially designed as an Er:YAG laser. The energy output averaged over time is less than 1 mJ/mm.sup.2 at the radiation exit surface.

A laser and a minimally invasive dental surgical procedure using the laser to stimulate periodontal tissue formation.