下顎小臼齒有lingual tilt
Mesial marginal ridges of mandibular first premolars slope cervically toward the lingual at about 45 degrees from horizontal.On second premolars, they are more horizontal(Mesial views).
29.有關下顎第一小臼齒的敘述,下列何者錯誤? (A)其舌側咬頭通常較小且較無..-阿摩線上測驗