A method of treating diseased tissue while healing the wound using a diode laser which generates a beam of light having a wavelength in the visible portion of the electromagnetic spectrum (400 nm-700 nm) at a laser power of 0.001 to 1.2 watts, used with intermittent stops to control tissue temperature and biostimulate epithelial regeneration when used with or without substrates. A method of treating diseased tissue using a laser light in the green wavelength range (520-570 nm) at a laser power of 0.001 W to 5 W. A method of treating diseased tissue using a laser light in the IR wavelength range (700-1400 nm) at a laser power of 0.001 W to 5 W.

The present invention relates to an electrochemical device for releasing ions, comprising an electrical circuit comprising a first electrode and a second electrode adapted for providing a galvanic cell when the electrodes are exposed to a fluid constituting an electrolyte, and a boost converter adapted for amplifying a potential generated between the first and the second electrode. The electrical circuit further comprises a third electrode connected with an output side of the boost converter, wherein the second and the third electrode constitutes an electrolytic cell powered by the galvanic cell when the electrodes are exposed to a fluid. The present invention further relates to devices, such as a toothbrush or a shaver, adapted for being used in connection with a fluid, comprising such electrochemical device for releasing ions.

Illumination devices for impinging light on tissue, for example within a body cavity of a patient, to induce various biological effects are disclosed. Biological effects may include at least one of inactivating and/or inhibiting growth of one or more pathogens, upregulating a local immune response, increasing endogenous stores of nitric oxide, releasing nitric oxide from endogenous stores, and inducing an anti-inflammatory effect. Wavelengths of light are selected based on intended biological effects for one or more of targeted tissue types and targeted pathogens. Light treatments may provide multiple pathogenic biological effects, either with light of a single wavelength or with light having multiple wavelengths. Devices for light treatments are disclosed that provide light doses for inducing biological effects on various targeted pathogens and tissues with increased efficacy and reduced cytotoxicity. Particular illumination devices are disclosed that provide safe and effective treatments for upper respiratory tract infections, including coronaviridae and orthomyxoviridae.

An unattended approach can increase the reproducibility and safety of the treatment as the chance of over/under treating of a certain area is significantly decreased. On the other hand, unattended treatment of uneven or rugged areas can be challenging in terms of maintaining proper distance or contact with the treated tissue, mostly on areas which tend to differ from patient to patient (e.g. facial area). Delivering energy via a system of active elements embedded in a flexible pad adhesively attached to the skin offers a possible solution. The unattended approach may include delivering of multiple energies to enhance a visual appearance.

In one aspect, embodiments relate to systems and methods for preventing one or more of discoloration and attrition of dental surfaces of a patient undergoing orthodontic realignment using a clear polymer aligner. An exemplary system includes: a laser arrangement configured to generate a laser beam, an optical arrangement configured to direct the laser beam toward exposed tooth surfaces, and a laser controller configured to control the laser beam in order to heat at least a portion of the exposed tooth surfaces to affect one or more of a mechanical property and a chemical property, wherein the exposed tooth surfaces are located within a cavity of the clear polymer aligner when worn.

A multi-phase oral composition and delivery carrier for whitening teeth.

A light-emitting diode (LED) therapy device and method of use is provided that increases healing of tissues by targeting damaged tissue at a predetermined wavelength and pulsed at a predetermined frequency. The device includes a housing and a light radiation module enclosed within the housing. The light radiation module includes an LED, a controller unit connected to the LED to control wavelength and pulsed frequency of the LED, and a rechargeable power source. The device also includes a light-diffusing member connected to the housing designed to diffuse light emitted from the LED to damaged tissue in a human cavity. Light in the red or near infrared range and pulsed at a Nogier frequency increases the effectiveness of the LED device to stimulate healing of damaged tissues. Particular devices include incorporation into a pacifier for healing an infant's gums, or nasal, auditory, vaginal, or anal cavities and adults or children.

The present invention provides methods for treating, reducing the severity, or inhibiting the growth of cancer (e.g., skin cancer). The methods of the present invention comprise administering to a subject in need thereof a therapeutically effective amount of a programmed death 1 (PD-1) antagonist (e.g., an anti-PD-1 antibody). In certain embodiments, the skin cancer is cutaneous squamous cell carcinoma or basal cell carcinoma.

Light-based systems and methods are provided with targeted antibacterial action for mouth care in animals such as dogs. In various embodiments, the device includes a substantially impermeable shell. The shell has an outer surface. The outer surface has at least one substantially transparent region. The device further includes at least one light-emitting diode disposed within the shell. The at least one light-emitting diode is adapted to emit light having a wavelength between about 400 nm and about 1,000 nm when powered. The at least one light-emitting diode is configured to provide an average light intensity of between about 10 and about 50 mW/cm.sup.2 across the at least one substantially transparent region of the outer surface. The device further includes a power source disposed within the shell. The device further includes a switch at least partially disposed within the shell and adapted to control current flow from the power source to the at least one light-emitting diode.

An unattended approach can increase the reproducibility and safety of the treatment as the chance of over/under treating of a certain area is significantly decreased. On the other hand, unattended treatment of uneven or rugged areas can be challenging in terms of maintaining proper distance or contact with the treated tissue, mostly on areas which tend to differ from patient to patient (e.g. facial area). Delivering energy via a system of active elements embedded in a flexible pad adhesively attached to the skin offers a possible solution. The unattended approach may include delivering of multiple energies to enhance a visual appearance.