Abstract: 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/cm2 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.

Abstract: 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/cm2 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.

Abstract: 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/cm2 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.

Abstract: The present invention relates to a handheld dental device that provides photodynamic therapy. The device of the present invention may have an elongated housing; an applicator tip extending from the distal end of the housing; wherein the applicator tip has a lumen defined by a wall; an optic fiber extending through the lumen of the applicator tip; at least one power source attached to or residing within the housing; at least one light source that provides light to the optic fiber and emits a wavelength that ranges from about 650 nm to about 1400 nm; and at least one oxygen source that provides oxygen to a passage that communicates with the oxygen source and the applicator tip. Oxygen and light may be provided at the applicator tip simultaneously. The device may be used to eliminate or reduce bacteria which cause oral disease or conditions, such as endodontic treatment failures.

Abstract: Methods for permeabilizing biofilms using stress waves are described. The methods involve applying one or more stress waves to a biofilm, e.g., on a surface of a device or food item, or on a tissue surface in a patient, and then inducing stress waves to create transient increases in the permeability of the biofilm. The increased permeability facilitates delivery of compounds, such as antimicrobial or therapeutic agents into and through the biofilm.