题目内容

24 0:04:40选择题 髓腔体积最小的是:()

A. 上颌中切牙
B. 上颌侧切牙
C. 下颌中切牙
D. 下颌侧切牙

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24 0:04:40 Multiple choice question The tooth with the smallest pulp cavity is _________. ()

A. maxillary central incisor
B. maxillary lateral incisor
C. mandibular central incisor
D. mandibular lateral incisor

25 0:03:56选择题 前磨牙中,双根管发生概率最高的牙齿是:()

A. 上颌第一前磨牙
B. 上颌第二前磨牙
C. 下颌第一前磨牙
D. 下颌第二前磨牙

25 0:03:56 Multiple choice question Among the premolars, which of the following teeth has the highest proportion of having double root canals: ()

A. Maxillary first premolar
B. Maxillary second premolar
C. Mandibular first premolar
D. Mandibular second premolar

26 0:08:09选择题 关于下颌第一磨牙的髓腔形态的描述不正确的是:()

A. 髓室近远中径大于颊舌径大于髓室高度
B. 髓室顶形凹,最凹处约与颈缘平齐
C. 舌侧髓角高度约近牙冠中1/3
D. 颊侧和远中髓角较低,位于牙冠颈1/3或颈缘附近
E. 近中根管为双管型者占13%

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