Ⅱ类洞
Ⅱ 类洞
皿类洞 V类洞 5元
Ⅲ 类洞 Ⅳ 类洞
V类洞
Ⅴ 类洞
VI洞 元元5
VI洞
Maxillary incisor, lngual view Class I Class 6 Class 1 Class 4 Class2 Class 5 Mandibular molar, Mandibular premolar, Mandibular lateral incisor, proximofacial view lingual view facial view
Class 1 Class 2 Class 1 Class 2 Class 3 Class 4 Class 5 Class 6