Conclusion the stud type attachments have practically value in clinical appliance and the same capabilities compared with congeneric import production.
结论自行研制的球帽型附着体具有临床实用价值，达到了进口同类产品的性能。
Conclusions: Combined design of stud type attachments and extracoronal attachments had practically value in clinical appliance.
结论：球帽型附着体与冠外附着体的联合设计形式具有临床实用价值。
Objective: To discuss the usage of stud-nap attachments and magnetic attachments in complete overdentures.
目的：利用按扣式附着体、磁性附着体的不同优点，改善全口覆盖义齿固位。
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