【单选题】【消耗次数：1】
全冠修复最基本的固位形式是
①
钉洞固位形
②
沟固位形
③
洞固位形
④
鸠尾固位形
⑤
环抱固位形
参考答案：
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相关题目
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不符合牙体缺损修复体固位原理的是（）。
①
修复体组织面与预备体表面接触越紧密固位越好
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粘结剂越厚粘结力越小
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