Laser/tissue interaction: what happens to laser light when it strikes tissue?

Article Abstract:

Different types of interactions can occur between laser light and different tissues of the human body. Lasers are used in dentistry and other medical disciplines for different types of treatment. Laser light may be reflected, scattered, absorbed or transmitted to surrounding tissue. The type of interaction that occurs depends on a number of different factors. These include the properties of the laser system, the treatment regimen, the optical properties of the tissues and the healing and immune response of the patient. Dentists can control some of the interaction that occurs between laser light and patient tissue. The most important factor is the wavelength of laser light used for a treatment. The wavelength in combination with the optical properties of the tissue determines whether the laser light is absorbed. The carbon dioxide laser is absorbed by most types of materials including human tissue.

Physiological aspects, Laser beams, Tissues, Tissues (Anatomy)

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CO2 laser fusion of a vertical root fracture: case report

Article Abstract:

A dentist describes his use of a carbon dioxide laser to treat a vertical root fracture in a tooth. These fractures are a serious problem because they can lead to loss of the tooth. A carbon dioxide laser can create a glaze on the surface of the tooth that can seal the fracture.

Care and treatment, Evaluation, Teeth, Fractures (Injuries), Fractures, Tooth roots

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Lasers in dentistry: Separating science from hype

Article Abstract:

Laser and its legitimate use in dentistry are discussed in detail. Both soft- and hard-tissue applications are focused, including frenectomy, gingival contouring, caries removal and bleaching.

Science & research, Research, Usage, Dentistry, Lasers in medicine, Medical lasers

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