牙体缺损修复后具有稳定而协调的关系的叙述-不正确的是（） A.

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问题单项选择题

牙体缺损修复后具有稳定而协调的关系的叙述-不正确的是（）

A.正中时，面有广泛的接触

B.正中、前伸和侧方无早接触

C.前伸时，上下前牙呈组牙接触，后牙无接触

D.侧方时，上下颌牙呈组牙接触，非工作侧不接触

E.侧方时，上下颌牙呈组牙接触，非工作侧有接触

答案

参考答案：E

解析：正中时达到广泛的尖窝接触关系，所以A正确;达到正中，前伸和侧方没有早接触，所以B正确；前伸时，上下前牙有接触，后牙无接触，是前伸平衡，故C正确；侧方时，上下颌牙呈组牙接触，非工作侧不接触，所以D正确；E不正确，此题选E。考点：协调的关系内容

完形填空

I know I should have told the headmaster at the time. That was my real    21 .
He had gone out of the study for some   22  , leaving me alone. In his absence I looked to see what was on his    23  . In the   24 was a small piece of paper on which were written the    25 “English Writing Prize 1949. History Is a Serious of Biographies (人物传记)”.
A(n)   26  boy would have avoided looking at the title as soon as he saw the 27   . I did not. The subject of the English Writing Prize was kept a    28   until the start of the exam so I could not 29   reading it.
When the headmaster     30  , I was looking out of the window.
I should have told him what had    31  then. It would have been so 32 to say: “I’m sorry, but I 33 the title for the English Writing Prize on your desk. You’ll have to   34   it.”
The chance passed and I did not take it. I sat for the exam the next day and I won. I didn’t mean to cheat, but it was still    35   anyhow.
That was thirty-eight years ago when I was fifteen. I have never told anyone about it before, nor have I tried to explain to myself why not.

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单项选择题

男患者，一天前深龋洞牙痛，外院开髓治疗后，仍有阵发性剧烈疼痛，并放散到同侧面部。查深龋洞内塞满食物，穿髓孔针眼大，探痛不显。温度测迟钝，叩痛（++），龈不红肿。应做的处理是（）

A．调低咬合

B．封失活剂

C．口服止痛药

D．髓腔封丁香油球

E．麻醉下拔髓开放

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