retention force造句

The effect of different luting cements on casting metal full crown retention force

Conclusion: the number, site and dislocation direction of the attachment affect retention force of bar-clip implant overdenture.

Objective: to study on retention force of dentures with various amount and distribution of attachments, provided reference to clinic use.

Objective The friction coefficient between the clasp and enamel was measured as one base of calculating the retention force of clasp quantitatively.