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36 results on '"Hosoya, Noriyasu"'

10. Generation of gaseous sulfur-containing compounds in tumour tissue and suppression of gas diffusion as an antitumour treatment

Author

Yamagishi, Kazue, Onuma, Kazuo, Chiba, Yota, Yagi, Shinya, Aoki, Shigenobu, Sato, Tomoyuki, Sugawara, Yasushi, Hosoya, Noriyasu, Saeki, Yasutake, Takahashi, Minoru, Fuji, Masayoshi, Ohsaka, Takeo, Okajima, Takeyoshi, Akita, Kenji, Suzuki, Takashi, Senawongse, Pisol, Urushiyama, Akio, Kawai, Kiyoshi, Shoun, Hirofumi, Ishii, Yoshimasa, Ishikawa, Hiroya, Sugiyama, Shigeru, Nakajima, Madoka, Tsuboi, Masaru, and Yamanaka, Tateo

Published
2012
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30. Generation of gaseous sulfur-containing compounds in tumour tissue and suppression of gas diffusion as an antitumour treatment

Author

Yamagishi, Kazue, primary, Onuma, Kazuo, additional, Chiba, Yota, additional, Yagi, Shinya, additional, Aoki, Shigenobu, additional, Sato, Tomoyuki, additional, Sugawara, Yasushi, additional, Hosoya, Noriyasu, additional, Saeki, Yasutake, additional, Takahashi, Minoru, additional, Fuji, Masayoshi, additional, Ohsaka, Takeo, additional, Okajima, Takeyoshi, additional, Akita, Kenji, additional, Suzuki, Takashi, additional, Senawongse, Pisol, additional, Urushiyama, Akio, additional, Kawai, Kiyoshi, additional, Shoun, Hirofumi, additional, Ishii, Yoshimasa, additional, Ishikawa, Hiroya, additional, Sugiyama, Shigeru, additional, Nakajima, Madoka, additional, Tsuboi, Masaru, additional, and Yamanaka, Tateo, additional

Published
2011
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32. Application of Thermography in Dentistry-Visualization of Temperature Distribution on Oral Tissues-

Author

KOMORIYAMA, Manabu, primary, NOMOTO, Rie, additional, TANAKA, Rin, additional, HOSOYA, Noriyasu, additional, GOMI, Kazuhiro, additional, IINO, Fumiaki, additional, YASHIMA, Akihiro, additional, TAKAYAMA, Yasuko, additional, TSURUTA, Masahiko, additional, TOKIWA, Hajime, additional, KAWASAKI, Kenzo, additional, ARAI, Takashi, additional, HOSOI, Toshio, additional, HIRASHITA, Ayao, additional, and HIRANO, Susumu, additional

Published
2003
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35. [Efficacy of Slightly Acidic Electrolyzed Water against Contamination of Water Line of Dental Units].

Author

Nakano M, Takao A, Maeda N, and Hosoya N

Subjects
Time Factors, Dental Offices, Equipment Contamination prevention & control, Hydrogen Peroxide, Water Supply methods
Abstract

Objectives: The purpose of this study was to evaluate the efficacy of slightly acidic electrolyzed water (SAEW) against the contamination of the water line of dental units and the effects of SAEW on the water line., Materials and Methods: The experimental material was a prototype dental unit equipped with a SAEW generator. SAEW is directly supplied to each device or part of this unit system. Experimental SAEW samples were collected from a high-speed handpiece (HS-1), an ultrasonic scaler, and a cup filler of the prototype dental unit. Control samples were taken before and after the prescribed flushing from another high-speed handpiece (HS-2) that is directly supplied with tap water in the same dental unit. The samples were analyzed for free chlorine and heterotrophic bacteria for 7 years to assess the efficacy and effects of SAEW. The substances eluted in SAEW were examined to investigate the effect of SAEW on the water line. A questionnaire survey was conducted on patients on whom dental uints supplied with SAEW were used., Results: SAEW always showed a higher free chlorine concentration than tap water during the observation period of 7 years. In HS-2 supplied with tap water, the free chlorine concentration increased significantly owing to the prescribed flushing. SAEW always showed a significantly smaller number of heterotrophic bacteria than tap water. No abnormal levels values of water line components eluted into SAEW were observed. There were few negative comments from patients on whom dental units supplied with SAEW were used., Conclusions: SAEW continuously used for 7 years was effective for contamination control in the water line of dental units.

Published
2020
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36. Enamel surface changes caused by hydrogen sulfide.

Author

Yamaguchi T, Hanabusa M, Hosoya N, Chiba T, Yoshida T, and Morito A

Abstract

Background: Volatile sulfur compounds (VSCs) produced inside the mouth are a well-known cause of halitosis. Recent studies have suggested that VSCs modify the pathology of periodontitis by encouraging the migration of bacterial toxins associated with increased permeability of gingival epithelia, and enhancing the production of matrix metalloproteinases in gingival connective tissue. Nonetheless, the effects on the enamel of direct exposure to VSCs within the oral cavity remain unclear. In the present study, we observed the effects of VSCs in the form of hydrogen sulfide (H2S) on enamel surfaces and determined their effects on restorations., Materials and Methods: Extracted human tooth and bovine tooth samples were divided into the H2S experimental side and the control side. We observed the effects of H2S on enamel surfaces using electron microscopy and conducted a shear test., Results: We found that exposure to H2S obscured the enamel surface's crystal structure. The surface also exhibited coarseness and reticular changes. Shear testing did not reveal any differences in bond strength., Conclusions: Our findings suggested that H2S occurring inside the mouth causes changes to the crystal structure of the enamel surface that can lead to tooth wear, but that it does not diminish the effects of dental bonding in adhesive restorations.

Published
2015
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