Application of multiphoton fluorescence imaging technique to detect subgingival calculus
博士 === 國立陽明大學 === 臨床牙醫學研究所 === 99 === Dental calculus has been recognized as the major cause of periodontitis, which is one of the main chronic infectious diseases of oral cavities and a principal cause of tooth loss in humans. Bacteria deposited in subgingival calculus or plaque cause gingival infl...
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ndltd-TW-099YM0055940082015-10-13T20:37:08Z http://ndltd.ncl.edu.tw/handle/35081181538279010171 Application of multiphoton fluorescence imaging technique to detect subgingival calculus 應用多光子雷射偵測牙齦下結石的螢光影像 Oi-Hong Tung 董愛康 博士 國立陽明大學 臨床牙醫學研究所 99 Dental calculus has been recognized as the major cause of periodontitis, which is one of the main chronic infectious diseases of oral cavities and a principal cause of tooth loss in humans. Bacteria deposited in subgingival calculus or plaque cause gingival inflammation, function deterioration, and then periodontitis. However, subgingival calculus within the periodontal pocket is a complicated and potentially delicate structure to be detected with current dental armamentaria, namely dental x-rays and dental probes. Consequently, complete removal of subgingival calculus remains a challenge to periodontal therapies. In this study, the detection of subgingival calculus employing a multiphoton autofluorescence imaging method was characterized in comparison with a one-photon confocal fluorescence imaging technique. This characteristic gives multiphoton fluorescence microscopy technique the ability to discriminate against fluorescence originating from regions outside the focal plane. Feasibility of such a system was studied based on fluorescence response of gingiva, healthy teeth, and calculus with and without gingiva covered. The result of one-photon autofluorescence images showed that the contrast between healthy teeth, calculus, and gingiva was very low. The result of autofluorescence intensity from two-photon autofluorescence images showed a good contrast between healthy teeth, calculus, and gingiva: The fluorescence of healthy teeth and gingiva was very low when compared to that of calculus. Characteristics of two-photon fluorescence imaging technology were studied and the technique was employed on the detection of subgingival calculus. The multiphoton fluorescence technology perceived the tissue-covered subgingival calculus that cannot be observed by the one-photon confocal fluorescence method. Shyh-Yuan Lee How-Foo Chen 李士元 陳浩夫 2011 學位論文 ; thesis 81 zh-TW |
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博士 === 國立陽明大學 === 臨床牙醫學研究所 === 99 === Dental calculus has been recognized as the major cause of periodontitis, which is one of the main chronic infectious diseases of oral cavities and a principal cause of tooth loss in humans. Bacteria deposited in subgingival calculus or plaque cause gingival inflammation, function deterioration, and then periodontitis. However, subgingival calculus within the periodontal pocket is a complicated and potentially delicate structure to be detected with current dental armamentaria, namely dental x-rays and dental probes. Consequently, complete removal of subgingival calculus remains a challenge to periodontal therapies. In this study, the detection of subgingival calculus employing a multiphoton autofluorescence imaging method was characterized in comparison with a one-photon confocal fluorescence imaging technique. This characteristic gives multiphoton fluorescence microscopy technique the ability to discriminate against fluorescence originating from regions outside the focal plane. Feasibility of such a system was studied based on fluorescence response of gingiva, healthy teeth, and calculus with and without gingiva covered. The result of one-photon autofluorescence images showed that the contrast between healthy teeth, calculus, and gingiva was very low. The result of autofluorescence intensity from two-photon autofluorescence images showed a good contrast between healthy teeth, calculus, and gingiva: The fluorescence of healthy teeth and gingiva was very low when compared to that of calculus. Characteristics of two-photon fluorescence imaging technology were studied and the technique was employed on the detection of subgingival calculus. The multiphoton fluorescence technology perceived the tissue-covered subgingival calculus that cannot be observed by the one-photon confocal fluorescence method.
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author2 |
Shyh-Yuan Lee |
author_facet |
Shyh-Yuan Lee Oi-Hong Tung 董愛康 |
author |
Oi-Hong Tung 董愛康 |
spellingShingle |
Oi-Hong Tung 董愛康 Application of multiphoton fluorescence imaging technique to detect subgingival calculus |
author_sort |
Oi-Hong Tung |
title |
Application of multiphoton fluorescence imaging technique to detect subgingival calculus |
title_short |
Application of multiphoton fluorescence imaging technique to detect subgingival calculus |
title_full |
Application of multiphoton fluorescence imaging technique to detect subgingival calculus |
title_fullStr |
Application of multiphoton fluorescence imaging technique to detect subgingival calculus |
title_full_unstemmed |
Application of multiphoton fluorescence imaging technique to detect subgingival calculus |
title_sort |
application of multiphoton fluorescence imaging technique to detect subgingival calculus |
publishDate |
2011 |
url |
http://ndltd.ncl.edu.tw/handle/35081181538279010171 |
work_keys_str_mv |
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