A.鼻腭神經(jīng)和腭前神經(jīng) B.腭前神經(jīng)和上牙槽前神經(jīng) C.鼻腭神經(jīng)和上牙槽前神經(jīng) D.腭前神經(jīng)和眶下神經(jīng) E.眶下神經(jīng)和上牙槽前神經(jīng)
A.翼外肌 B.翼內(nèi)肌 C.顳肌 D.咬肌 E.咽上縮肌
A.消除早接觸點(diǎn) B.減少牙周組織所受的側(cè)向力 C.降低臨床牙冠長(zhǎng)度 D.避免前牙因后牙推動(dòng)而擁擠 E.減小深覆蓋程度