Objective: To improve retainer's aesthetics and alleviate buccal retainer's peculiar sense for patients with removable partial denture.Methods: Casting clasp between teeth(CCBT) is set up between buccal and lingual embrasure of two abutment teeth.Results: The retainer's metal is hardly revealed,with nicer aesthetics,small volume and comfortable sense.After being observed in 34 patients for 1-2 years,the CCBT retains perfect and the abutment teeth don't demonstrate removal.Conclusion: The CCBT is apparently ...