Advanced Instrumentation for the General Practice Dental Hygienist
Course Number: 569
Course Contents
Extra Rigid Gracey Curettes
Rigid Gracey-type: moderate calculus, root debridement, surgery; same angulation/blade width as standard but wider, more rigid shank.
Extra Rigid Gracey-type: heavy calculus, gross scaling/debridement, surgery; unique shank angles/bends for access (Figures 20-21).
Standard Gracey-types suit light-moderate scaling and root debridement. When power scaling is limited and deposits are tenacious, rigid and extra-rigid designs are useful.
Figure 20. Standard, Rigid, Extra Rigid.
Figure 21. 5/6, 7/8, 11/12, 13/14.
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