齒中齒 (Khí-tiong-khí) (漢字 (Hàn-jī),齒中齒,英語 (Eng-gí),dens in dente) 又閣 (iū-koh)叫做 (kiò-chò)內陷齒 (lāi-hām-khí) (內陷齒,dens invaginatus),是 (sī)等 (téng)gok永久 (éng-kiú)赤 (chhek)毛起 (mn̂g-khí)的 (ê)齒釉質 (khí-iū-chit)佇 (tī)舌側 (sia̍t-chhek)發生 (hoat-seng)內餡 (lāi-hām)所 (só͘)形成 (hêng-sêng)。差不就 (Chha-put-tō)攏是 (lóng-sī)相觸 (siang-chhek)發生,佇電光 (tiān-kong)鼻 (phīⁿ)來 (lâi)看 (khòaⁿ),會使 (ē-sái)發現 (hoat-hiàn)1齒 (khí)喙齒 (chhùi-khí)包含 (pau-hâm)佇另 (lēng)1齒喙齒內短 (lāi-té)。來陷齒 (Lāi-hām-khí)誠 (chiâⁿ)賢 (gâu)造成 (chō-sêng)食物 (chia̍h-mi̍h)的屯則 (tûn-chek),引起 (ín-khí)蛀齒 (chiù-khí),齒髓炎 (khí-chhóe-iām),佮 (kap)齒根尖 (khí-kin-chiam)齒周炎 (khí-chiu-iām)。若 (Nā)干淡 (kan-tāⁿ)是蛀齒就 (tio̍h)會當 (ē-tàng)趕緊 (kóaⁿ-kín)共 (kā)恬捕 (thiâm-pó͘)起來 (khí-lâi),若已經 (í-keng)引起齒髓炎或 (he̍k)齒根尖齒周炎就愛 (tio̍h-ài)做 (chò)根管 (kin-kńg)治療 (tī-liâu)。