項(xiàng)目?jī)?nèi)容正常乳牙☆★咬合粗略的認(rèn)為,上下牙的接觸關(guān)系和恒牙咬合大致呈同樣的關(guān)系。根據(jù)牙列中間隙的有無(wú)分為有隙型和閉鎖型。乳牙列空隙種類和出現(xiàn)率(%)原始間隙上頜15.3%下頜10.3%原始間隙+發(fā)育間隙上頜69.4%下頜53.6%發(fā)育間 (共 244 字) [閱讀本文] >>
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 項(xiàng)目?jī)?nèi)容正常乳牙☆★咬合粗略的認(rèn)為,上下牙的接觸關(guān)系和恒牙咬合大致呈同樣的關(guān)系。根據(jù)牙列中間隙的有無(wú)分為有隙型和閉鎖型。乳牙列空隙種類和出現(xiàn)率(%)原始間隙上頜15.3%下頜10.3%原始間隙+發(fā)育間隙上頜69.4%下頜53.6%發(fā)育間 (共 244 字) [閱讀本文] >>