An Improved Dental Appliance for Regulating the Teeth.

摘要

17,610. Hackett, W., and Hackett, W. E., [trading together as Hackett & Son, W.]. July 25. [Addition to 5734/10.] Teeth, regulating.-The device f o r regulating teeth described in the parent Specification is modified so that the arch can be withdrawn and replaced without releasing the tooth-bands. To one end of each band A is soldered a partly-threaded tube C, which is passed through a short tube B soldered to the other end so that the band may be tightened about a tooth by a nut D. Each end of the arch E is passed through a tube C and adjusted by a nut F.