Journal of Japanese Society for Laser Dentistry最新文献

{"title":"Histological Observation on Dental Hard Tissue Irradiated by Ultra-short Pulsed Laser","authors":"T. Uchizono, Akihiro Igarashi, J. Kato, Y. Hirai, D. Mohri, K. Awazu","doi":"10.5984/JJPNSOCLASERDENT.17.81","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.17.81","url":null,"abstract":"","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134349255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Report of Nd:YAG Laser in Insurance Medical Treatment","authors":"A. Suzaki","doi":"10.5984/JJPNSOCLASERDENT.31.20","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.31.20","url":null,"abstract":"","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131755620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cytological Responses in Periodontal Tissue to Photobiomodulation by Low-level Diode Laser Irradiation","authors":"Yujin Ohsugi, Keita Toyoshima, Masahiro Hatasa, Tsuyoshi Shimohira, Takahiko Shiba, Keiji Komatsu, Yosuke Tsuchiya, Shunsuke Fukuba, Hiromi Niimi, Sayaka Katagiri, T. Iwata, A. Aoki","doi":"10.5984/jjpnsoclaserdent.32.33","DOIUrl":"https://doi.org/10.5984/jjpnsoclaserdent.32.33","url":null,"abstract":"","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129371999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct Deposition of an Apatite Film on Dentin Using the Er:YAG Laser-Ablation Method","authors":"S. Hontsu, E. Yamamoto, N. Kato, K. Yoshikawa, K. Yasuo, Kazuyo Yamamoto","doi":"10.5984/JJPNSOCLASERDENT.26.10","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.26.10","url":null,"abstract":"","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study of photodynamic therapy for interstitial laser irradiation methods using Microselectron ® tube","authors":"K. Masumoto, I. Yamada, K. Hashimoto, T. Hirano","doi":"10.5984/JJPNSOCLASERDENT.9.32","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.9.32","url":null,"abstract":"The purpose of this study is to evaluate after-loading interstitial photodynamic therapy using Microselectron ® tube for advanced cancer. Materials and Methods: VX2 carcinoma was transplanted into the dorsal surface of Japanese white rabbits. When the cancer grows up to the size of 32×20×20mm, a dose of 5mg/kg of the photosensitizer, Hematoporphyrin derivative made by the QUENTRON OPTICS company was administered intravenously. Microselectron ® tube was implanted into the tumor 24 hours after the administration in which the optic fiber was inserted and rotated. The irradiation conditions were 40.8mm/min, 17.5R.P.M., a pulse repetition frequency of 80Hz and 5mJ/pulse. The total light doses along a tube were 150J/cm. Result: No significant change of tumor temperature by laser beam was observed. The tumor around the tube was destroyed up to the extent of 28mm in diameter. We suggest that after-loading interstitial photodynamic therapy using Microselectron ® tube is applicable for treatment of advanced cancer.","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117015082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bactericidal Effect of Er:YAG Laser Irradiation on Periodontal Pocket","authors":"T. Nagase","doi":"10.5984/JJPNSOCLASERDENT.22.109","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.22.109","url":null,"abstract":"","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121949162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bactericidal Effects of Nd","authors":"Y. Sekine, R. Wadachi, A. Ebihara, A. Takeda, H. Suda","doi":"10.5984/JJPNSOCLASERDENT.6.31","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.6.31","url":null,"abstract":"The purpose of this study was to investigate the effect of Nd: YAG laser irradiation on Streptococcus mutans.Roots of intact bovine incisors were used in this experiment. After cleaning and shaping of the root canal, they were acid-etched for 1 minute and ultrasonically irrigated. The root surface was coated with nail enamel and the samples were sterilized. Each root canal was filled with 50μl of culture medium where S. mutans was incubated at 37°C for 24 hours. One hundred roots were divided into 10 groups according to irradiation energy and addition of evans blue in the culture medium. Non-irradiated samples were used as control.The culture medium in the root canal was irradiated under up-and-down motion between the apical and cervical portion of the root canal with an optical fiber (∅=600, μm) for 30 seconds using Nd: YAG laser (100mJ or 200mJ and 10 or 30 pps). After the irradiation, bacterial samples of 10μl were taken from each root canal and incubated aerobically on Mitis Salivalius Agar at 37°C for 72 hours. The number of colonies on the medium was counted and colony-forming-units (CFUs) /ml were calculated.Thermal change caused by Nd: YAG laser irradiation in the root canal and culture medium was also monitored with a thermal camera. In addition, the irradiated dentin surface of the canal wall was observed with SEM.The results were as follows:1. In comparison with the control group, the CFUs in 100mJ 10pps, 200mJ 10pps, 100mJ 30pps and 200mJ 30pps irradiated groups without evans blue were reduced to 41%, 37%, 16% and 2%, respectively. Likewise, the CFUs in 100mJ 10pps, 200mJ 10pps, 100mJ 30pps and 200mJ 30pps irradiated groups with evans blue were reduced to 46%, 34%, 3% and 0%, respectively. The bactericidal effect in all experimental groups was statistically significant compared with the control group (t-test, P<0.01).2. No significant difference was found between the groups with and without evans blue when irradiation energy was the same.3. The maximum temperature rise in the culture medium was 40°C in accordance with the temperature rise on the root surface of about 5°C under the lasing condition of 200mJ 3Opps.4. In SEM observation, most part of the lased canal wall surface showed open dentinal tubles, partially closed in other part.","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116803781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical Application of Er:YAG Laser to Peri-implantitis Therapy","authors":"A. Tsukui","doi":"10.5984/JJPNSOCLASERDENT.29.26","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.29.26","url":null,"abstract":"","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125050167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Etched Surface of Enamel with Nd: YAG Laser and Phosphoric Acid","authors":"S. I. Myaki, J. Imparato, W. T. Oliveira, C. Eduardo, L. Watanabe","doi":"10.5984/JJPNSOCLASERDENT.5.59","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.5.59","url":null,"abstract":"ヒトのエナメル質を35%リン酸およびNd: YAGレーザー (0.75W～1.00W, 15pps, 90秒) 照射の2つの異なる方法でエッチングしエナメル質の表面性状を比較検討した.エッチングされたエナメル質表面に両群共, 窩溝填塞剤であるDelton (J & J) を填塞しtag形成の状態を2群で比較した.その結果, Nd: YAGレーザーでエッチングしたエナメル質の場合より, リン酸でエッチングしたエナメル質に多量のmicroporosities (脱灰された小柱端末) がユニフォームに形成された.またtag形成についても, Nd: YAGレーザーで処置したエナメル質よりリン酸で処置したエナメル質において良好であることが示された.","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128750735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Proposal of Educational Guideline for Laser Dentistry","authors":"K. Shinkai, S. Oda, H. Yamaguchi, M. Yamada, K. Yoshikawa, Y. Yoshimine, Hisashi Watanabe","doi":"10.5984/JJPNSOCLASERDENT.26.28","DOIUrl":"https://doi.org/10.5984/JJPNSOCLASERDENT.26.28","url":null,"abstract":"新しい歯科診療機器の開発・製品化そして日常臨床への 導入により,歯科大学における学生教育にも新しい教育内 容が追加されている。レーザー歯学に関する教育もその例 外ではない。歯科医学教授要綱1)には,到達目標として 「レーザーを応用した歯内療法を説明できる」,「歯周疾患 に対するレーザー治療について理解する」があげられ, キーワードとして「歯科用レーザー,レーザー蛍光法, レーザー溶接法」などレーザーに関連するものが散見され る。また,歯科医師国家試験出題基準にもレーザー装置, レーザー療法が記載されており,実際に過去の歯科医師国 家試験でレーザーに関する問題が少なからず出題されてい る。しかしながら,本学会の教育問題検討委員会によるア ンケート調査報告2)では,全国の歯科大学と大学歯学部 における卒前のレーザー歯学教育は,カリキュラムにおけ る位置付けが不明瞭であり,独立した科目としては扱われ ていないことが明らかとなった。また,この報告で,レー ザーを応用している治療内容に関する調査では,大学病院 における歯科治療よりも歯科診療所における歯科治療の方 が,高い割合でレーザーを応用していることが明らかと なった。このようにレーザー歯科治療の教育と臨床が乖離 する状況は好ましいことではなく,卒前におけるレーザー 歯学,とくにレーザーに関する基礎教育の必要性を指摘し ている。したがって,大学での卒前レーザー歯学教育を標 準化すべく,コアカリキュラム作成が必須と考えられる。 そこで,本委員会では,まずコアカリキュラムの骨子と なるべきレーザー歯学教授要綱を歯科医師国家試験出題基 準の書式に準じて作成した。","PeriodicalId":187459,"journal":{"name":"Journal of Japanese Society for Laser Dentistry","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128258005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}