Apparatus for use in maxillary orthopaedics

Details Apparatus for use in maxillary orthopaedics Apparatus for use in maxillary orthopaedics

1979-08-31

1981-03-10

Peshock, Robert

Dentistry

Orthodontics

By mouthpiece-type retainer

A61C 700

Patent

active

042551382

ABSTRACT:
Apparatus for use in maxillary orthopaedics comprises a time-measuring device 18 fitted in a cavity in a moulding means 13 which is made of plastics material and is carried in the mouth. The time-measuring device 18 consists of an electronic counter which is connected to an impulse generator. The impulse generator is actuated by a switch 17 which is arranged to be in a different state according to whether the device is worn or not. The time-measuring device is connected, via leads 20' and switch 17, to a battery 16 also fitted in a cavity in the moulding means 13.

REFERENCES:
patent: 3885310 (1975-05-01), Northcott

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