Effects of Experimental Palatal Appliances on Oral Senses

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著者

    • KODAMA Naoki
    • Occlusion and Removable Prosthodontics, Okayama University Hospital
    • NISHIGAWA Goro
    • Occlusion and Removable Prosthodontics, Okayama University Hospital
    • MARUO Yukinori
    • Occlusion and Removable Prosthodontics, Okayama University Hospital
    • MINAGI Shogo
    • Department of Occlusal and Oral Functional Rehabilitation, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
    • MATSUO Ryuji
    • Department of Oral Physiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences

抄録

Denture wearers often claim an alteration of taste and oral senses. There are many sensory spots on the hard palate but not taste receptors, so a palatal appliance does not cover taste receptors. Thus, the causes of these claims are not fully understood. In this experiment, we examined the effects of an experimental palatal appliance on taste and form discrimination ability. We took maxillary impressions and made a palatal appliance of acrylic resin. The subjects were seven healthy women (aged 21 to 25). They were divided randomly into two groups and the following two experiments were performed. Experiment 1: we checked the taste threshold for four basic taste stimuli (sucrose, NaCl, acetic acid, and hydrochloric acid quinine) by means of the whole mouth test and filter paper-disk method. Experiment 2: we examined their form discrimination ability. For form discrimination ability, we prepared test blocks of four forms of different sizes. Volunteers were asked to put one of the blocks into their mouth, and to identify the form of the block. There was no significant difference in the taste threshold whether they were wearing a palatal appliance or not. In form discrimination ability, there was no significant difference between subjects with and without a palatal appliance. The insertion of a palatal appliance causes few, if any, changes in oral senses. This study suggests that the alteration of oral senses after wearing dentures may be due to mental factors, the contact of food and oral mucosa, and the flow, flavor, and temperature of food and so on.

収録刊行物

  • Prosthodontic research & practice  

    Prosthodontic research & practice 7(2), 186-188, 2008-07-01 

    Japan Prosthodontic Society

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各種コード

  • NII論文ID(NAID)
    10021955201
  • NII書誌ID(NCID)
    AA11728086
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13477021
  • データ提供元
    CJP書誌  J-STAGE 
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