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.

A method of delivering light energy to a pathological tissue includes emitting light energy from a first optical element within a cannula, producing a substantially uniform irradiance profile from the light energy within the cannula, transmitting the light energy emitted from the first optical element through a second optical element in thermal contact with a distal end of the cannula to the pathological tissue without ablating the pathological tissue, and conducting thermal energy from the pathological tissue through the second optical element and to the cannula.

Dermatological systems and methods for providing picosecond laser pulses at a plurality of treatment wavelengths, wherein at least one of the wavelengths is provided by an optical parametric oscillator (OPO) capable of providing laser pulses at a wavelength for treating one or more target tissue types. In some embodiments, multiple OPOs may be provided to enable a wide range of selectable treatment wavelengths.

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.

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.

A laser treatment apparatus that is configured to irradiate a laser beam to an affected area to treat the affected area. The laser treatment apparatus includes: a beam source device that is configured to output a laser beam; and a scanning device that is configured to scan a therapeutic range including the affected area with the laser beam by irradiating the laser beam to the therapeutic range. The scanning device has a transmission medium that is configured to change an output direction of a laser beam according to an applied voltage.

The disclosure pertains to biotransducers and particularly to methods and apparatus for treating medical conditions and ailments using light therapy biotransducers.

A method of delivering light energy to a pathological tissue includes emitting light energy from a first optical element within a cannula, producing a substantially uniform irradiance profile from the light energy within the cannula, transmitting the light energy emitted from the first optical element through a second optical element in thermal contact with a distal end of the cannula to the pathological tissue without ablating the pathological tissue, and conducting thermal energy from the pathological tissue through the second optical element and to the cannula.

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.

A laser treatment apparatus that is configured to irradiate a laser beam to an affected area to treat the affected area. The laser treatment apparatus includes: a beam source device that is configured to output a laser beam; and a scanning device that is configured to scan a therapeutic range including the affected area with the laser beam by irradiating the laser beam to the therapeutic range. The scanning device has a transmission medium that is configured to change an output direction of a laser beam according to an applied voltage.