齒頭 [齿头]

Jyutping ci2 tau4
Pinyin chǐ tóu

Definitions (Wiktionary)
  1. noun, Hokkien
    root of the tooth; base of the tooth
    (syn.) 牙腳, 牙脚, 喙齿根, 齿龈根, 齒齦根, 喙齒根, 齿跤, 齒根, 齒跤, 齿根, 牙根