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26 results on '"Jayawardena, Jayanetti A."'

1. Supplemental Figure 2 from Fenretinide, Tocilizumab, and Reparixin Provide Multifaceted Disruption of Oral Squamous Cell Carcinoma Stem Cell Properties: Implications for Tertiary Chemoprevention

Author

Mallery, Susan R., primary, Wang, Daren, primary, Santiago, Brian, primary, Pei, Ping, primary, Bissonnette, Caroline, primary, Jayawardena, Jayanetti Asiri, primary, Schwendeman, Steven P., primary, Spinney, Richard, primary, and Lang, James, primary

Published
2023
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2. Supplemental Figure 5 from Fenretinide, Tocilizumab, and Reparixin Provide Multifaceted Disruption of Oral Squamous Cell Carcinoma Stem Cell Properties: Implications for Tertiary Chemoprevention

Author

Mallery, Susan R., primary, Wang, Daren, primary, Santiago, Brian, primary, Pei, Ping, primary, Bissonnette, Caroline, primary, Jayawardena, Jayanetti Asiri, primary, Schwendeman, Steven P., primary, Spinney, Richard, primary, and Lang, James, primary

Published
2023
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3. Supplemental Figure 3 from Fenretinide, Tocilizumab, and Reparixin Provide Multifaceted Disruption of Oral Squamous Cell Carcinoma Stem Cell Properties: Implications for Tertiary Chemoprevention

Author

Mallery, Susan R., primary, Wang, Daren, primary, Santiago, Brian, primary, Pei, Ping, primary, Bissonnette, Caroline, primary, Jayawardena, Jayanetti Asiri, primary, Schwendeman, Steven P., primary, Spinney, Richard, primary, and Lang, James, primary

Published
2023
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5. Supplemental Figure 1 from Fenretinide, Tocilizumab, and Reparixin Provide Multifaceted Disruption of Oral Squamous Cell Carcinoma Stem Cell Properties: Implications for Tertiary Chemoprevention

Author

Mallery, Susan R., primary, Wang, Daren, primary, Santiago, Brian, primary, Pei, Ping, primary, Bissonnette, Caroline, primary, Jayawardena, Jayanetti Asiri, primary, Schwendeman, Steven P., primary, Spinney, Richard, primary, and Lang, James, primary

Published
2023
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7. Supplemental Figure 4 from Fenretinide, Tocilizumab, and Reparixin Provide Multifaceted Disruption of Oral Squamous Cell Carcinoma Stem Cell Properties: Implications for Tertiary Chemoprevention

Author

Mallery, Susan R., primary, Wang, Daren, primary, Santiago, Brian, primary, Pei, Ping, primary, Bissonnette, Caroline, primary, Jayawardena, Jayanetti Asiri, primary, Schwendeman, Steven P., primary, Spinney, Richard, primary, and Lang, James, primary

Published
2023
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15. A Morphological Study on Root Canal Preparation Using Erbium, Chromium:YSGG Laser.

Author

Matsuoka, Emi, Jayawardena, Jayanetti Asiri, and Matsumoto, Koukichi

Subjects
ROOT canal treatment, IRRADIATION, DENTAL extraction, LASER surgery, DENTISTRY, DENTAL care, SCANNING electron microscopes, ERBIUM, CHROMIUM
Abstract

Purpose: To observe morphological changes of root canal walls, and to evaluate the performance of Er,Cr:YSGG laser irradiation in root canal preparation in vitro. Materials and Methods: Fifteen extracted single-rooted human mandibular incisors were used for this study. The root canals were prepared by laser irradiation at two different parameters (20 Hz/2 W and 20Hz/3W) using fine fiber tips of two different diameters (320 μm and 200 μm). After laser irradiation, the teeth were bisected longitudinally, and the specimens were observed with a stereoscope and a scanning electron microscope (SEM), Results: It was possible to prepare root canals using this type of laser irradiation. The irradiated areas of root canal walls showed scaly surfaces and open dentinal tubules. Conclusion: The Er,Cr:YSGG laser system may be an effective alternative method of preparing straight root canals. [ABSTRACT FROM AUTHOR]

Published
2005

16. A proposed core curriculum for dental English education in Japan

Author

Rodis, MM Omar, Barroga, Edward, Barron, J Patrick, Hobbs, James, Jayawardena, Jayanetti A, Kageyama, Ikuo, Kalubi, Bukasa, Langham, Clive, Matsuka, Yoshizo, Miyake, Yoichiro, Seki, Naoko, Oka, Hiroko, Peters, Martin, Shibata, Yo, Stegaroiu, Roxana, Suzuki, Kazuyoshi, Takahashi, Shigeru, Tsuchiya, Hironori, Yoshida, Toshiko, Yoshimoto, Katsuhiko, Rodis, MM Omar, Barroga, Edward, Barron, J Patrick, Hobbs, James, Jayawardena, Jayanetti A, Kageyama, Ikuo, Kalubi, Bukasa, Langham, Clive, Matsuka, Yoshizo, Miyake, Yoichiro, Seki, Naoko, Oka, Hiroko, Peters, Martin, Shibata, Yo, Stegaroiu, Roxana, Suzuki, Kazuyoshi, Takahashi, Shigeru, Tsuchiya, Hironori, Yoshida, Toshiko, and Yoshimoto, Katsuhiko

Abstract

Background: Globalization of the professions has become a necessity among schools and universities across the world. It has affected the medical and dental professions in terms of curriculum design and student and patient needs. In Japan, where medicine and dentistry are taught mainly in the Japanese language, profession-based courses in English, known as Medical English and Dental English, have been integrated into the existing curriculum among its 83 medical and 29 dental schools. Unfortunately, there is neither a core curriculum nor a model syllabus for these courses. Methods: This report is based on a survey, two discussion forums, a workshop, and finally, the drafting of a proposed core curriculum for dental English approved by consensus of the participants from each university. Results: The core curriculum covers the theoretical aspects, including dental English terms and oral pathologies; and practical aspects, including blended learning and dentist-patient communication. It is divided into modules and is recommended to be offered for at least two semesters. Conclusions: The core curriculum is expected to guide curriculum developers in schools where dental English courses are yet to be offered or are still in their early development. It may also serve as a model curriculum to medical and dental schools in countries in Asia, Europe, Africa, and Central and South America, where English is not the medium of instruction.

Published
2014

17. A proposed core curriculum for dental English education in Japan

Author

Rodis, Omar MM, primary, Barroga, Edward, additional, Barron, J Patrick, additional, Hobbs, James, additional, Jayawardena, Jayanetti A, additional, Kageyama, Ikuo, additional, Kalubi, Bukasa, additional, Langham, Clive, additional, Matsuka, Yoshizo, additional, Miyake, Yoichiro, additional, Seki, Naoko, additional, Oka, Hiroko, additional, Peters, Martin, additional, Shibata, Yo, additional, Stegaroiu, Roxana, additional, Suzuki, Kazuyoshi, additional, Takahashi, Shigeru, additional, Tsuchiya, Hironori, additional, Yoshida, Toshiko, additional, and Yoshimoto, Katsuhiko, additional

Published
2014
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26. Basic Study of Morphological Changes and Surface Roughness of Cavities Prepared by TEA CO2 Laser Irradiation

Author

Nakamura, Yukio, Hossain, Mozammal, Yamada, Yoshishige, Masuda, Yoshiko Murakami, Jayawardena, Jayanetti Asiri, and Matsumoto, Koukichi

Abstract

Objective: The purpose of this study was to investigate the morphological change of dental hard tissue and surface roughness of cavities prepared by transversely excited, atmospheric pressure (TEA) CO2 laser irradiation. Background Data: It has been reported that dental hard tissues and bone can be removed by a longpulse of TEA CO2 laser irradiation with minimal thermal damage. However, there are few reports on the surface roughness of lased teeth. Methods: The TEA CO2 laser was irradiated on the enamel and dentin surfaces of extracted human teeth under the following conditions: wavelength, 10.6 µm; output, 95 mJ/pulse; pulse repetition rate, 1 Hz; irradiation time, 7.5 µsec/shot; and energy density, 7.9 J/cm2. Morphological studies were performed by histological and scanning electron microscopic (SEM) examination. Surface roughness of prepared cavities was measured by three-dimensional laser microscopy. Results: Irradiated dentin produced a deeper defect (705 ± 11 µm) than the enamel (501 ± 10 µm). Histological appearance showed a basophilic line at the margin of lased dentin. SEM observation noted that the surfaces of the enamel cavity seem to be melted, and dentinal tubules were sealed. The surface roughness of the enamel cavity wall and dentin floor were 175 ± 5 µm and 170 ± 6 µm, respectively. Conclusion: These findings suggest that it is possible to remove carious dental hard tissue or cavity preparation with the TEA CO2 laser irradiation. Lased dental hard tissue can facilitate caries prevention, and surface roughness of the cavities might improve the bond strength of restorative dental materials.

Published
2006
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