味覚閾値に与える練歯磨及びその成分の影響 Effects of "Toothcream" and its Components on the Taste Threshold

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The authors noted the chage of tastes after cleaning teeth, and researched the change of the taste threshold after cleaning with toothcream and the effects of each component of the toothcream; the effects of surfactants which had been added to toothcream for 20 years or more were also discussed. The results are reported here. 1. The thresholds (special thresholds) of four fundamental tastes of sweet, salty, sour, and bitter in the test group were almost similar to those which were reported 40 years ago. Therefore, the difference in the taste thresholds by age was not observed. It indicated that the surfactants added to toothcream for a long time did not affect the tastes. 2. PH of the saliva not affected by cleaning of teeth. 3. Tastes of sweet and bitter were delayed to be differentiated after cleaning of teeth, but the sour taste was not affected. 4. The tastes which were affected by intraoral stimulation by commercially available "toothcream" and the mixture solution of its components were two tastes of sweet and bitter, while salty and sour tastes were hardly affected. 5. The thresholds were increased or reduced, but generally they were increased in many cases and the threshold concentration reached to 2 to 4 times as high as the original one. 6. The component of "toothcream" which can cause the change of taste thresholds was found to be sodium laurylsulfate. Perfumes strongly affected particularly sweetness and bitterness, and sodium laurylsulfate influenced sweet, salty and bitter tastes; glycerin affected only sweetness. 7. It took 3 to 15 minutes to recover the activity to differentiate sweet, salty, sour and bitter tastes after cleaning teeth with commercially available "toothcream".

The authors noted the chage of tastes after cleaning teeth, and researched the change of the taste threshold after cleaning with toothcream and the effects of each component of the toothcream; the effects of surfactants which had been added to toothcream for 20 years or more were also discussed. The results are reported here. 1. The thresholds (special thresholds) of four fundamental tastes of sweet, salty, sour, and bitter in the test group were almost similar to those which were reported 40 years ago. Therefore, the difference in the taste thresholds by age was not observed. It indicated that the surfactants added to toothcream for a long time did not affect the tastes. 2. PH of the saliva not affected by cleaning of teeth. 3. Tastes of sweet and bitter were delayed to be differentiated after cleaning of teeth, but the sour taste was not affected. 4. The tastes which were affected by intraoral stimulation by commercially available "toothcream" and the mixture solution of its components were two tastes of sweet and bitter, while salty and sour tastes were hardly affected. 5. The thresholds were increased or reduced, but generally they were increased in many cases and the threshold concentration reached to 2 to 4 times as high as the original one. 6. The component of "toothcream" which can cause the change of taste thresholds was found to be sodium laurylsulfate. Perfumes strongly affected particularly sweetness and bitterness, and sodium laurylsulfate influenced sweet, salty and bitter tastes; glycerin affected only sweetness. 7. It took 3 to 15 minutes to recover the activity to differentiate sweet, salty, sour and bitter tastes after cleaning teeth with commercially available "toothcream".

収録刊行物

  • 大學紀要. 第2分冊, 家政系編

    大學紀要. 第2分冊, 家政系編 24, 1-15, 1983-03-31

    和洋女子大学

各種コード

  • NII論文ID(NAID)
    110000982855
  • NII書誌ID(NCID)
    AN10066997
  • 本文言語コード
    JPN
  • 資料種別
    Departmental Bulletin Paper
  • 雑誌種別
    大学紀要
  • ISSN
    02893193
  • NDL 記事登録ID
    2586767
  • NDL 刊行物分類
    PS1;SC671;SC221
  • NDL 雑誌分類
    ZV1(一般学術誌--一般学術誌・大学紀要)
  • NDL 請求記号
    Z22-429
  • データ提供元
    NDL  NII-ELS  IR 
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