Photomedicine and laser surgery · 2006
Native fluorescence of oral cavity structures: an experimental study in dogs.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Fiorotti Renata C, Nicola Jorge H, Nicola Ester M D
Аннотация
OBJECTIVE: The aim of this study was to compare the fluorescence of different areas of the buccal mucosa of dogs.
BACKGROUND DATA: Native fluorescence occurs in many animal and plant tissues following excitation by ultraviolet (UV) light. The fluorescence spectrum characteristic of a given tissue may vary with changes in tissue composition and organization. Hence, this optical phenomenon provides a reliable and minimally invasive diagnostic tool for examining tissues in normal and pathological conditions. The oral cavity contains a variety of structures, including the lips, tongue, palate, and gingiva that differ in their location and function. These structures can be easily traumatized or display different degrees of keratinization.
METHODS: The study sample was 20 healthy, adult, mongrel dogs of both sexes. The dogs were anesthetized and manipulated in compliance with institutional guidelines. The fluorescence spectra were obtained using a "plug-in" spectrometer and optical fibers, with a final resolution better than 2 nm. The fluorescence of seven different areas (floor of the mouth, palate, gingiva, dorsal and ventral surface of tongue, buccal mucosa, and teeth) was examined. A UVHg lamp (emission wavelength, 350-410 nm) was used for excitation.
RESULTS: One hundred and forty spectra were collected from various regions of the oral cavity, and all of them showed similar profiles, with maximum fluorescence of 500-520 nm.
CONCLUSION: The similarity of the spectra for the different sites allowed us to establish a standard fluorescence spectrum of the buccal cavity.
BACKGROUND DATA: Native fluorescence occurs in many animal and plant tissues following excitation by ultraviolet (UV) light. The fluorescence spectrum characteristic of a given tissue may vary with changes in tissue composition and organization. Hence, this optical phenomenon provides a reliable and minimally invasive diagnostic tool for examining tissues in normal and pathological conditions. The oral cavity contains a variety of structures, including the lips, tongue, palate, and gingiva that differ in their location and function. These structures can be easily traumatized or display different degrees of keratinization.
METHODS: The study sample was 20 healthy, adult, mongrel dogs of both sexes. The dogs were anesthetized and manipulated in compliance with institutional guidelines. The fluorescence spectra were obtained using a "plug-in" spectrometer and optical fibers, with a final resolution better than 2 nm. The fluorescence of seven different areas (floor of the mouth, palate, gingiva, dorsal and ventral surface of tongue, buccal mucosa, and teeth) was examined. A UVHg lamp (emission wavelength, 350-410 nm) was used for excitation.
RESULTS: One hundred and forty spectra were collected from various regions of the oral cavity, and all of them showed similar profiles, with maximum fluorescence of 500-520 nm.
CONCLUSION: The similarity of the spectra for the different sites allowed us to establish a standard fluorescence spectrum of the buccal cavity.