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问题 单项选择题 A1型题

上颌第三磨牙的拔除适应证不包括（）

A.妨碍义齿的制作与戴入

B.部分萌出，反复发生冠周炎症

C.妨碍下颌髁突运动

D.防止邻牙龋坏

E.完全埋伏于骨内但无症状者

答案

参考答案：E

解析：髁突在下颌切迹的后方，上颌第三磨牙的萌出与之无明显关系。而当上颌第三磨牙位置不当时会影响髁突的运动。妨碍义齿的制作与戴入，部分萌出，反复发生冠周炎症，可能导致邻牙龋坏的情况都应及时拔除。但对于完全埋伏于骨内但无症状者可以保留不做处理。

完形填空

在短文的空格中填入恰当的词 (每个空格只能填一个单词)，使全文意义完整、通顺。

Last summer my family moved to a new neighborhood. Ramon, a boy living right across the street from our new house, came by to ___小题1:___ hello. When school started, I was happy that Ramon was in my class. One day Mr. Rosen, our teacher, told us about the big Art and Music Festival coming up at school. He said, “Who wants to be in the show? Raise your hands.” The class became restless. About a dozen hands went up. I started to raise my hand, ___小题2:___ I stopped and put it down. I couldn’t say a word. I just sat there while the others volunteered. “There is a piano in the hall. We could use a piano player,” said Mr. Rosen. Still I said nothing. And ___小题3:___ asked me to perform at the festival, for I had never even told anyone that I could play the piano. Every day when I went home to learn the sonata in C Major(C 大调奏鸣曲) by Mozart , I told Ramon I had to do my homework. Every day it ___小题4:___ better and better and I grew more and more disappointed that I had not ___小题5:___ to play at the festival. One afternoon I was practicing as usual. Suddenly there was a ___小题6:___ at the door. I was in the middle of Mozart’s Sonata, so I kept on playing. My mom opened the door and told me it was Ramon. “What nice ___小题7:__! ” I heard him say. Then he walked into the living room and saw me ___小题8:___ the piano. When I finished, Ramon jumped up and clapped. He ran over to me and gave me a pat on the back. “Matthew,” he said, “that was great! I never even knew you could play the piano! ___小题9:___ were you keeping this a secret?” I kept quiet for a minute. I felt foolish. Ramon had stopped by to borrow my math book because he had left his at school ___小题10:__ mistake. Now he knew I played the piano. The next day in school, Ramon told Mr. Rosen that I was a great pianist. The rest is history.
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单项选择题

下颌舌骨嵴前方，口底上升时的最高点

A．"P"切迹
B．腭皱
C．舌侧翼缘区
D．翼上颌切迹
E．颧突区

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