The junctional epithelium ( JE ) is the gingival portion of the dento - gingival tissue interface attached the tooth surface.
结合上皮是龈牙结合部的牙龈上皮组成部分,呈领圈状紧密附着于牙面.
During the last 20 years, there has been remarkable progress in surgical correction of dento - maxillofacial deformities.
近20年来, 牙颌面畸形外科矫治取得了令人瞩目的进展.