Conclusion: the number, site and dislocation direction of the attachment affect retention force of bar-clip implant overdenture.
结论：种植杆卡式固位体的数量，位置及脱位力方向对种植覆盖全口义齿的固位力都有一定影响。
Objective: to study on retention force of dentures with various amount and distribution of attachments, provided reference to clinic use.
目的：对不同数量及分布的钉帽附着体固位力进行测试，为临床应用提供参考依据。
Objective: to study on retention force of dentures with various amount and distribution of attachments, provided reference to clinic use.
目的：对不同数量及分布的钉帽附着体固位力进行测试，为临床应用提供参考依据。
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