上顎前突症 じょうがくぜんとつしょう Meanings Noun maxillary prognathism Kanji 上 up. Read as ジョウ. 顎 jaw. Read as ガク. 前 front. Read as ゼン. 突 thrust. Read as トツ. 症 symptom. Read as ショウ. Word lists Medicine Jinuma: Japanese Dictionary · Word lists