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High-resolutionElectronMicroscopic Studyof theRole of saliva ir Remineralization

Research Project

Project/Area Number 11470382
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Morphological basic dentistry
Research InstitutionTOKYO DENTAL COLLEGE

Principal Investigator

YANAGISAWA Takaaki  TOKYO DENTAL COLLEGE, DEPARTMENT OF DENTISTRY, PROFESSOR, 歯学部, 教授 (10096513)

Co-Investigator(Kenkyū-buntansha) MIAKE Yauo  TOKYO DENTAL COLLEGE, DEPARTMENT OF DENTISTRY, ASSISTANT PROFESSOR, 歯学部, 助教授 (00157421)
MINAGUCHI Kiyoshi  TOKYO DENTAL COLLEGE, DEPARTMENT OF DENTISTRY, PROFESSOR, 歯学部, 教授 (00133380)
Project Period (FY) 1999 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥13,400,000 (Direct Cost: ¥13,400,000)
Fiscal Year 2002: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2001: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2000: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1999: ¥10,400,000 (Direct Cost: ¥10,400,000)
Keywordsfuliy impacted teeth / parotid grand saliva / remineralizatlion / ground section / contact microradiography / optical microscopy / scanning electron microscopy / high-resolution transmission electron microsqopy / 顕微X線法 / 走査型電子顕微鏡 / 透過型電子顕微鏡 / 研磨切片 / 透過型高分解能電子顕微鏡 / 人為的脱灰 / 非脱灰研磨切片 / 高分解能電子顕微鏡
Research Abstract

It has longbeenknown (hat salivaplays arole in reminera!ization, but many of the studies previously conducted on the topic have been conceptual and have provided no objective proof from the standpoint of crystal morphology. This study involves experiments on completely impacted human enamel to elucidate the topic. llwasperformed inkeepingwith theregulafionof theEthicsCommitteeofTokyoDental College.Employingamodification of the windowmethod,we prepared several groups; an untreated(control) group,experimental groupAconsistingofuntreatedmaterials thathadbeen immersed inparotidfcaliva, untreated artificially demineralized material(control), and experimental group B consisting of artificially demineralized material that had been immersed in parotid saliva. In addition, fractured experimental materials were subjected to acid etching to determine acid resistance. These materials were observed by means of CMR, SEM, and HR-TEM.
CMR images showed acceleration of mineralization in experimental gro … More up A and a reniineralized layer in experimental group B, providing objective proof of the role that saliva plays in rjemineralization. Both the area of accelerated mineralization and the remineralized layer had acquired acid resistance.Because this connection must not be overlooked, the role of saliva-proteins is to be the one of our next research. Post-eruptive maturation of enamel crystals is observation made in connection withsaliva-induced remineralization clarifiedby this study. It is strongly suspected that acquisitionof acid resistance, together with this maturation, helps to reduce the likelihood of susceptibility to caries. The crystals on the surfaces ofuntreated materials were small and granular. Large and small crystalswith rounded angles wereobserved indemineralizedmaterials. Occasionallycentral perforations were seen. In contrast, minute granular or small granulated crystals were deposited on the outermost surface inmaterials fromexperimental group A. 3n addition tominute granular crystals, large numbers of needle crystals had deposited in materials from experimental group B,. Since enamel crystals grow from needle shape to hexagonal forms out of the c-axis,it seems probable that saliva contributes notonly to remineralization, butalso to crystal growth. We plan to make this our research theme. Less

Report

(5 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] 見明康雄, 柳澤孝彰: "実験的エナメル質脱灰層の再石灰化に及ぼすキシリトールの影響"歯科基礎医学会雑誌. 42. 580-589 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 佐伯洋二, 高橋 満, 川上慎吾, 徳本 匠, 見明康雄, 奥田克爾, 柳澤孝彰: "フノリ抽出物と第2リン酸カルシウムを配合したキシリトールチューインガムの実験的初期齲蝕エナメル質に及ぼす再石灰化促進効果"歯科基礎医学会雑誌. 42. 590-600 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 高橋 満, 佐伯洋二, 見明康雄, 柳澤孝彰: "再石灰化に及ぼす糖アルコールとカルシウム剤の影響"歯科学報. 100. 755-762 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 高橋 満, 佐伯洋二, 見明康雄, 柳澤孝彰: "実験的初期齲蝕病巣におけるフノリ抽出物と第2リン酸カルシウムを配合したキシリトール粒ガムの再石灰化促進効果のin vivo評価"歯学学報. 101. 1033-1042 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 古屋一明, 見明康雄, 柳澤孝彰: "脱灰エナメル質の再石灰化に及ぼす唾液の影響"歯科学報. 102. 29-41 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 佐伯洋二, 高橋 満, 今野慎吾, 勝山裕之, 見明康雄, 柳澤孝彰: "実験的初期齲蝕エナメル質に及ぼすフノリ抽出物と第2リン酸カルシウムを配合したキシリトールタブレットの再石灰化促進効果"J. Hard Tissue Biology. 10. 148-154 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 柳澤孝彰, 見明康雄, 中川寛一, 平井義人: "フノリ抽出物と第2リン酸カルシウム配合キシリトールガムおよびカゼインホスホペプチド-非結晶性リン酸カルシウム複合体キシリトールガムの実験的初期齲蝕エナメル質に及ぼす再石灰化促進効果"日本歯科保存学雑誌. 45. 984-991 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yanagisawa T., Miake Y., Saeki Y., Takahashi M.: "Remineralization in Enamel Caries and Restoration of Carious Lesions by Enhanced Remineralization Induced by Saliva and Xylitol"Dentistry in Japan. 39(In press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yanagisawa T.: "New Approach of Dental Caries Prevention"Korean Society of Dental Caries Prevention. 152 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yanagisawa T.: "Proceedings of the 1^<st> International Congress on Mastication and Health"Korean Association(in press). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Miake, Y. andYanagisawa, T.: "Effects ofxylitol remineralizalion of artificial demineraiized enamel"Jap J Oral Biol. 42-6. 580-589 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Saeki, Y., Takahashi, M., Kawakami, S., Tokumoto, T., Miake, Y., Yamada, S., Okuda, K. and Yanagisawa, I.: "Remineralization effect of xylitol chewing gum containing Gloiopeltis furucata extract and calcium nydrogenphosphate on initial caries-like enamel lesions"Jap J Oral Biol. 42-6. 590-600 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., Saeki, Y., Miake, Y. and Yanagisawa, T.: "Effects of sugar alcohol and calcium compounds on reminerzation"Shikwa Gakuho. 100-8. 755-762 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takahashi, M., Saeki, Y., Fujimoto, K.. Matsuzaki, H., Miake, Y. and Yanagisawa,T.: "Remineralization effects ofxylitol dragee gumcontaining Gloiopel'tis furcataextract and calcium hydrogenphosphate on initial caries-like enamellesions in vivo"Shikwa Gakuho. 101-ll. 1033-1042 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Furuya, K., Miake, Y., and Yanagisawa, T.: "Effects of Saliva on remineralization.of decalcified enamel"Shikwa Gakuho. 102-1. 29-41 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Saeki, Y., Takahashi, M., Konno, S., Katsuyama, H., Miake, Y. and Yanagisawa, T.: "Remineralization effects of xylitol tablets containing Glouipeltis furcata extract and calcium hydrogenpbosphate on initial enamel caries-like lesions"J Hard Tiss Biol. 10-3. 148-154 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Jfanagisawa, T., Miake, Y., Nakagawa, K. Hirai, Y.: "Reniineralization effect of xylitol chewing gum containing Gloiopeltis furcata extract and calcium hydrogenphosphate, versua xylitol chewinggum containing casein phosphopeptideamorphous caiciumphosphate, on initial caries enamel lesions"Jap J Conservative Dentistry. 45-6. 984-991 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yanagisawa, T.: "Remineralization based on morphologicalevidences and itsenhancement by the action of saliva and Xyliiol on initial caries"New Approach of Dental Caries Prevention, Korean Society of Dentai Hygene Education, Seol, Korea. 75-152 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yanagisawa, T., Miake, Y., Saeki, Y. and Takahashi, M.: "Remineralization in enasiel caries and restorationof cariouslesions by enhanced remineralization induced by saliva and xylitol"Dentistry in Japan. 30,in press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yanagisawa, T.: "Caries-preventative effects of saliva on remineralization and their enhancement"Proc 1^<st> Int Cong on Mastication and Health. in press. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 高橋 満, 佐伯洋二, 藤本桂司, 松崎久雄, 見明康雄, 柳澤孝彰: "実験的初期齲蝕病巣におけるフノリ抽出物と第2リン酸カルシウムを配合したキシリトール粒ガムの再石灰化促進効果のin vitro評価"歯科学報. 101・11. 1033-1042 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 古屋一明, 見明康雄, 柳澤孝彰: "脱灰エナメル質の再石灰化に及ぼす唾液の影響"歯科学報. 102・1. 29-41 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 佐伯洋一, 高橋 満, 今野慎吾, 勝山裕之, 見明康雄, 柳澤孝彰: "実験的初期齲蝕エナメル質に及ぼすフノリ抽出物と第2リン酸カルシウムを配合したキシリトールタブレットの再石灰化促進効果"J. Hard Tissue Biology. 10・3. 148-154 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 柳澤孝彰, 見明康雄, 中川寛一, 平井義人: "フノリ抽出物と第2リン酸カルシウム配合キシリトールガムおよびカゼインホスホペプチド-非結晶性リン酸カルシウム複合体キシリトールガムの実験的初期齲蝕エナメル質に及ぼす再石灰化促進効果"日本歯科保存学雑誌. 45・6. 984-991 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yanagisawa, T., Miake, Y., Saeki, Y., Takahashi, M.: "Reminaeralization in Enamel Caries And Restration of Carious Lesions by Enhanced Remineralization Induced by Salive and Xylitol"Dentistry in Japan. 39(in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yanagisawa, T.: "Proceedings of the 1^<st> International Congress on Mastication and Health"日本咀嚼学会(in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 高橋 満, 佐伯洋二, 藤本桂司, 松崎久雄, 見明康雄, 柳澤孝彰: "実験的初期齲蝕病巣におけるフノリ抽出物と第2リン酸カルシウムを配合したキシリトール粒ガムの再石灰化促進効果のin vivo評価"歯科学報. 101巻・11号. 1033-1042 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 高橋 満, 佐伯洋二, 見明康雄, 柳澤孝彰: "再石灰化に及ぼす糖アルコールとカルシウム剤の影響"

    • Related Report
      2001 Annual Research Report
  • [Publications] 見明康雄,柳澤孝彰: "実験的エナメル質脱灰層の再石灰化に及ぼすキシリトールの影響"歯科基礎医学会雑誌. 42・6. 580-589 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 佐伯洋二,高橋満,川上新吾,徳本匠,見明康雄,奥田克爾,柳澤孝彰: "フノリ抽出物と第2リン酸カルシウムを配合したキシリトールチューインガムの実験的初期齲蝕エナメル質に及ぼす再石灰化促進効果"歯科基礎医学会雑誌. 42・6. 590-600 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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