06-graceys curettes
DESCRIPTION
CeuuretesTRANSCRIPT
Gracey Curets
What is a Gracy Curet?
• Designed as a area specific instrument• Lighter deposit removal• Root planing• Self-angulated at 70 degrees• Gracy Curets are designed for
subgingival debridement – rounded toeand back design
Gracey Curet Design
HandleShank
Blade
Terminal
Shank
Functional Shank
Long , functional shankRounded working endOne cutting edgeIdeal for root planing
Cutting Edge Relationship to Terminal Shank
• Face perpendicular to shank 90 degrees• 2 cutting edges
• Col13/14, McCalls 17/18
Universal Instruments Area Specific Instrument
• Face offset to shank 70 degrees• One cutting edge• Gracy curet
Gracey 11-12
Gracey 13-14
Cutting Edge Determination
o Terminal Shank perpendicular to flooro Lower edge is the cutting edge
TerminalShank
Cutting EdgeCutting Edge
Cutting EdgeDetermination
Gracey Curets• Gracey 11/12 – mesial surfaces of
posterior teeth• Gracey 13/14 – distal surfaces of
posterior teeth• Gracey ½ - anterior teeth (surfaces
away and surfaces towards theclinician)
Gracey 11/12
Gracey 11/12 Gracey 11/12Correct Working EndCorrect Working End
Mesial instrumentPosterior instrumentTerminal shank parallel to tooth long axis
Gracey 11/12Gracey 11/12 Mesial Mesial
G 11/12 G 13/14
13/14 Gracey Curet
• Distal instrument• Posterior instrument• Long shank for deep pockets• Angled functional shank posterior tooth access
Correct Working EndTerminal Shank parallel
Incorrect Working EndTerminal shank not parallel
Gracey 13/14 Distal InstrumentationGracey 13/14 Distal Instrumentation
G 11/12 G 13/14
Gracey 11/12 or 13/14 ?
Gracey ½ Curet
Maxillary and Mandibular Anterior Teeth
Gracy ½ Curet
Terminal shank is parallel to the long axis of the tooth.Fulcrum is next to the operative Tooth.
Gracey 1/2Mand. Anteriors(Surfaces Away)
flip instrument clinician moves from
back to front position
GraceyGracey 1/2 1/2 MandMand. . AnteriorsAnteriors(Surfaces Toward)(Surfaces Toward)
Terminal shank parallel tolong axis
Terminal shank parallelGracey 1/2
Curet Adaptation
AdaptationScaler vs Curet
Scaler
Curet
Angulation
0 degrees Optimal
60-80degrees
Greater than90 degrees
Less than45 degrees
Subgingival Debridement/RootSubgingival Debridement/Root Planing for Smooth Surfaces Planing for Smooth Surfaces
• Calculus on enamel generally snaps off in one piece• Subgingival calculus is shaved off
• Overlapping and multidirectional strokes
Stroke Direction
Vertical stroke Oblique stroke Horizontal Stroke
Thorough Root Debridement
Multidirectional stroke activation
A - horizontal B - diagonal or oblique C - vertical
A. B. C.
Curet options
Standard, after five (+3 mm to terminal shank),and mini five curettes (blade half length)
Many choices
Clinical cassettes
Detection instruments Debridement instruments