Air polishing prophylaxis system

Details Air polishing prophylaxis system Air polishing prophylaxis system

2011-08-09

2011-08-09

Rodriguez, Cris L (Department: 3732)

Dentistry

Apparatus

Having intra-oral dispensing means

Reexamination Certificate

active

07993135

ABSTRACT:
A dental apparatus provides a substantially uniform concentration of abrasive material entrained in a pressurized gas to a desired location substantially irrespective the amount of abrasive material in a pressurized container of the apparatus, and resists clogging by the abrasive material. The apparatus includes a control unit having a container that secures the abrasive material, the abrasive material in the container becoming entrained in pressurized gas received from a dental unit. The concentration of the mixture of entrained abrasive material in pressurized gas is maintained by upwardly directing the flow of the mixture in a first conduit against a cap, a portion of the entrained abrasive material returning to the container, with the regulated mixture of entrained abrasive material in pressurized gas being delivered through a hand piece to the desired location.

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