為便于臨床診斷和(he)矯治(zhi)設計，學者們(men)提出(chu)了一些分類法，現簡(jian)要介(jie)紹(shao)兩種：

　　①安(an)格爾分類(lei)(lei)(lei)法 。由 E.H.安(an)格爾于(yu)1899年提出(chu) 。他認為(wei)(wei)上(shang)(shang)(shang)頜第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)的(de)位(wei)置最為(wei)(wei)恒(heng)(heng)(heng)(heng)(heng)定，故以該牙(ya)(ya)(ya)(ya)為(wei)(wei)基(ji)準，將(jiang)錯(cuo)合(he)(he)(he)(he)分為(wei)(wei)3類(lei)(lei)(lei)。第(di)(di)(di)(di)(di)(di)一(yi)(yi)類(lei)(lei)(lei)為(wei)(wei)中(zhong)(zhong)(zhong)性錯(cuo)合(he)(he)(he)(he)。上(shang)(shang)(shang)下(xia)牙(ya)(ya)(ya)(ya)弓的(de)近(jin)(jin)遠(yuan)(yuan)中(zhong)(zhong)(zhong)關系正常(chang)；即正中(zhong)(zhong)(zhong)合(he)(he)(he)(he)位(wei)時(shi)，上(shang)(shang)(shang)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)的(de)近(jin)(jin)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)尖(jian)咬合(he)(he)(he)(he)于(yu)下(xia)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)的(de)近(jin)(jin)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)溝。若(ruo)全口牙(ya)(ya)(ya)(ya)齒無一(yi)(yi)錯(cuo)位(wei)，稱為(wei)(wei)正常(chang)合(he)(he)(he)(he)；有(you)錯(cuo)位(wei)者稱為(wei)(wei)第(di)(di)(di)(di)(di)(di)一(yi)(yi)類(lei)(lei)(lei)錯(cuo)合(he)(he)(he)(he)。第(di)(di)(di)(di)(di)(di)二類(lei)(lei)(lei)為(wei)(wei)遠(yuan)(yuan)中(zhong)(zhong)(zhong)錯(cuo)合(he)(he)(he)(he)。當上(shang)(shang)(shang)下(xia)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)的(de)近(jin)(jin)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)尖(jian)相(xiang)對(dui)(dui)時(shi)，為(wei)(wei)輕度(du)遠(yuan)(yuan)中(zhong)(zhong)(zhong)錯(cuo)合(he)(he)(he)(he)；若(ruo)上(shang)(shang)(shang)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)近(jin)(jin)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)尖(jian)咬合(he)(he)(he)(he)于(yu)下(xia)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)與(yu)第(di)(di)(di)(di)(di)(di)二雙尖(jian)牙(ya)(ya)(ya)(ya)之(zhi)間，則(ze)為(wei)(wei)完全的(de)遠(yuan)(yuan)中(zhong)(zhong)(zhong)錯(cuo)合(he)(he)(he)(he)關系。第(di)(di)(di)(di)(di)(di)三類(lei)(lei)(lei)為(wei)(wei)近(jin)(jin)中(zhong)(zhong)(zhong)錯(cuo)合(he)(he)(he)(he)。若(ruo)上(shang)(shang)(shang)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)近(jin)(jin)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)尖(jian)與(yu)下(xia)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)遠(yuan)(yuan)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)尖(jian)相(xiang)對(dui)(dui)時(shi)，則(ze)為(wei)(wei)輕度(du)近(jin)(jin)中(zhong)(zhong)(zhong)錯(cuo)合(he)(he)(he)(he) ；當上(shang)(shang)(shang)第(di)(di)(di)(di)(di)(di)一(yi)(yi)恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)近(jin)(jin)中(zhong)(zhong)(zhong)頰(jia)(jia)(jia)尖(jian)咬合(he)(he)(he)(he)于(yu)下(xia)第(di)(di)(di)(di)(di)(di)一(yi)(yi)、二恒(heng)(heng)(heng)(heng)(heng)磨牙(ya)(ya)(ya)(ya)之(zhi)間時(shi)，為(wei)(wei)完全的(de)近(jin)(jin)中(zhong)(zhong)(zhong)錯(cuo)合(he)(he)(he)(he)關系。

　　②毛(mao)(mao)燮均分類(lei)(lei)法。毛(mao)(mao)燮均于1959年在錯(cuo)合癥狀(zhuang)、機理、矯治原則三結合的(de)基礎上提出的(de)，共有(you)6類(lei)(lei)：第一(yi)類(lei)(lei)，牙量骨(gu)量不(bu)(bu)調(diao)。第二類(lei)(lei)，長度(du)不(bu)(bu)調(diao)。第三類(lei)(lei)，寬度(du)不(bu)(bu)調(diao)。第四類(lei)(lei)，高度(du)不(bu)(bu)調(diao)。第五(wu)類(lei)(lei)，個別牙錯(cuo)位。第六類(lei)(lei)，其他。

　　根據病史、牙頜(he)面的檢查及(ji)X射線片資料 ，分(fen)析其病因(yin)，做出分(fen)類診斷及(ji)矯治設計。

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