另一种休息座位的筹备工作，对边缘嵴冠的犬，保存牙齿结构和提供了充足的休息座位的长度和深度，以确保支持铸造框架。
An alternative rest-seat preparation, on the marginal ridge of the canine crown, conserves tooth structure and provides a rest seat of adequate length and depth to ensure support for a cast framework.
结论：牙齿长度电测法是一种比较准确、客观的测量牙齿工作长度的方法。
CONCLUSION: The method of root canal length measured with TRI AUTO ZX root canal apex locator is one kind of accurate and impersonal one.
结论：牙齿长度电测法是一种比较准确、客观的测量牙齿工作长度的方法。
CONCLUSION: The method of root canal length measured with TRI AUTO ZX root canal apex locator is one kind of accurate and impersonal one.
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