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【单选题】
已知某反应的级数为一级,则可确定该反应一定是
A.
简单反应
B.
单分子反应
C.
复杂反应
D.
其他都有可能
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【单选题】男,46岁。3年前行固定义齿修复,目前咬合疼痛,义齿松动,要求重新固定义齿修复。检查:固定桥修复体己脱位,固位体为3/4冠,全冠,基牙Ⅰ度—Ⅱ度松动。 固定义齿脱落的原因是
A.
颌力过大
B.
黏固剂被溶解
C.
固定桥强度差
D.
共同就位道不一致
E.
两端固位力不一致
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【多选题】固定桥修复要求()
A.
拔牙后3个月
B.
适宜年龄为20~69岁
C.
有正常的 龈距离
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主要用于修复前牙
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基牙牙周组织健康
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【单选题】男,46岁。三年前行 固定义齿修复,目前咬合疼痛,义齿松动,要求重行固定义齿修复。检查: 固定桥修复体己脱位,固位体为 ,3/4全冠,基牙Ⅰ度-Ⅱ度松动。 固定义齿脱落的原因是
A.
颌力过大
B.
黏固剂被溶解
C.
固定桥强度差
D.
共同就位道不一致
E.
两端固位力不一致
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【单选题】男,46岁,3年前行固定义齿修复,目前咬合疼痛,义齿松动,要求重新固定义齿修复。检查固定桥修复体已脱位,固位体为3/4冠,全冠,基牙Ⅰ~Ⅱ度变动。 固定义齿脱落的原因是
A.
力过大
B.
黏固剂被溶解
C.
固定桥强度差
D.
共同就位道不一致
E.
两端固位力不一致
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