other oral ariables ( number of dental decays, fillings, crowns, and root canal treatments ) were not significantly associated with a tongue cancer risk 另外的口腔變化(齲齒數(shù)目,屑,牙冠,根管治療)與舌癌的發(fā)病風(fēng)險(xiǎn)沒有顯著相關(guān)性。
other oral variables ( number of dental decays, fillings, crowns, and root canal treatments ) were not significantly associated with a tongue cancer risk 另外的口腔變化(齲齒數(shù)目,屑,牙冠,根管治療)與舌癌的發(fā)病風(fēng)險(xiǎn)沒有顯著相關(guān)性。
according to a study by the veterans affairs boston healthcare system, cigarette smoking can lead not only to tooth dis coloration and gum disease, but often to the need for root canal treatment as well 根據(jù)退伍老兵事務(wù)波士頓保健系統(tǒng)公司進(jìn)行的一項(xiàng)研究,吸煙不僅會引起牙齒變色和齒齦疾病,而且通常會導(dǎo)致必須進(jìn)行根管治療。