PATHOLOGIC ANALYSIS OF PHOTOTHERMAL AND PHOTOMECHANICAL EFFECTS OF LASER–TISSUE INTERACTIONS

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Abstract

<jats:p><jats:bold>Abstract—</jats:bold> —Pathologic analysis of the biologic effects and mechanisms of laser–tissue interactions requires correlation of the irradiation parameters with the biologic status and response of the target tissues over time. The photobiologic mechanisms of laser‐induced tissue injury can be separated into three categories, photochemical, photothermal and photomechanical. Anatomic pathologic analysis of laser‐induced lesions reveals alterations that represent either specific markers of the photobiologic mechanism or non‐specific reactions to tissue injury. Repair, regeneration and wound healing of laser induced lesions appear to be non‐specific responses to the type of tissue damage rather than the photobiologic mechanism producing the lesion.</jats:p>

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