Dental prophylaxis cup

Details Dental prophylaxis cup Dental prophylaxis cup

1993-07-30

1995-04-11

O'Connor, Cary E.

Dentistry

Apparatus

Tool bit

A61C 306

Patent

active

054052653

ABSTRACT:
A dental prophylaxis cup (10) is provided. The cup (10) is rotatably attachable to prophy angles (D) and hence to a dental handpiece. An interior (60) of the prophylaxis cup (10) includes a sidewall (62) extending upwardly and outwardly from a floor (64) of the interior (60) to a rim (50) at a top of the prophylaxis cup (10). The side wall (62) includes projections (70) extending therefrom. Each projection (70) completely surrounds a confinement region (73). Adjacent projections (70) are spaced apart by a gap (78). The gap (78) defines an upper end of an impoundment region (80) located between the floor (64) and confinement regions (73), separated therefrom by projections (70). Polishing compound is retained within the confinement region (73) and impoundment region (80) either until sufficient force (P) is applied, or the cup (10) is distorted, causing the polishing compound to migrate toward the rim (50).

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