Dentistry – Apparatus – Hand manipulatable implement
Patent
1989-10-10
1991-06-11
Stone, Cary E.
Dentistry
Apparatus
Hand manipulatable implement
A61C 300
Patent
active
050228595
ABSTRACT:
An improved dental instrument is provided for facilitated placement of retraction cord into the gingival crevice surrounding a tooth. The instrument includes a narrow working tip defining a concave and face adapted for secure, substantially slip-free engagement with retraction cord in the course of packing the cord into the gingival crevice. The retraction cord can thus be placed quickly and easily without significant risk of damage to periodontal attachment tissue at the base of the gingival crevice.
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