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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Stomatitis nicotina ： ウィキペディア英語版 Stomatitis nicotina Stomatitis nicotina (also known as nicotine stomatitis, nicotinic stomatitis, nicotine palatinus,〔 stomatitis palatini,〔 leukokeratosis nicotina palate,〔 palatal leukokeratosis,〔 smoker's keratosis,〔 smoker's palate,〔 and smoker's patches), is a diffuse white patch on the hard palate, usually caused by tobacco smoking, usually pipe or cigar smoking.〔 It is painless, and it is caused by a response of the palatal oral mucosa to chronic heat. A more pronounced appearance can occur with reverse smoking, sometimes distinguished from stomatitis nicotina by the term reverse smoker's keratosis. While stomatitis nicotina that is caused by heat is not a premaligant condition (i.e. it does not carry an increased risk of transformation to oral cancer), the condition that is caused by reverse smoking is premalignant.〔 ==Signs and symptoms== The palate may appear gray or white and contain many papules or nodules that are slightly elevated with red dots in their center.〔 These red dots represent the ducts of minor salivary glands which have become inflamed by heat.〔 The condition is painless.〔 If a denture is normally worn while smoking, then the mucosa underneath the denture appears unaffected by the condition.〔 In severe cases, the mucosa may show fissuring and develop a "dried lake bed" appearance.〔 Other changes associated with tobacco use may be evident such as brown or black extrinsic staining of teeth from tar and other components of tobacco smoke.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Stomatitis nicotina」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.