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ISSN : 0376-4672
저출력레이저요법(low-level laser therapy (LLLT))은 일반적으로 1mW에서 500mW 범위의 저출력 레이저 빛을 병소에 적용함으로써 조직 재생을 촉진하고 염증을 감소시키며 통증을 경감하는 치료법이다. 조사되는 빛은 전형적으로 적색 또는 근적외선 영역의 좁은 스펙트럼 폭(600~1000nm)으로 1mW/㎠에서 5W/㎠의 출력밀도(power density, irradiance)를 갖는다. 대개 1분 가량, 1주에 몇 차례, 수주 동안 손상 부위에 적용한다. 저출력레이저요법은 다른 레이저 술식에서와 같이 제거 기전(ablative mechanism) 또는 열적 기전(thermal mechanism)에 의해서가 아니라, 빛이 흡수되고 화학적인 변화를 야기하는 광화학 효과(photochemical effect)에 의해 작용한다.
Low-level laser therapy (LLLT) is the application of light to pathology to promote tissue regeneration, reduce inflammation,and relieve pain. LLLT has a photochemical effect whereby the light is absorbed and exerts a chemical change. The clinical applications of LLLT include improvement in wound and bone healing processes, control of pain and tooth hypersensitivity,modulation of periodontal inflammation, the prevention and treatment of cancer therapy-induced oral mucositis, management of burning mouth syndrome, and improvement in temporomandibular disorder symptoms. Further research is needed to better elucidate the cellular mechanisms of LLLT and provide a solid scientific basis for the clinical application of LLLT in dentistry.
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