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15 16 And 17 18 Gracey Fohf

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Hu-Friedy 15/16 and 17/18 Gracey Curettes

Hu-Friedy 15/16 and 17/18 Gracey Curettes

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  • 1. 15/16 & 17/18 Gracey Curettes
  • 2. 15/16 & 17/18 Gracey Curettes
    • In this tutorial you will learn:
      • Gracey Curettes overview
      • What 15/16 and 17/18 Gracey Curettes are
      • Features and benefits of 15/16 and 17/18 Gracey Curettes
      • Illustrated uses of 15/16 and 17/18 Gracey Curettes
  • 3. Introduction
    • Gracey Curettes are area-specific to allow for deep scaling, root planing and periodontal debridement.
    • The offset blade provides perfect working angulation for the tooth surface.
      • Only the lower cutting edge of each blade is used.
  • 4. Gracey Blade Design
    • Here is an illustration showing how the Gracey blade design is offset from the shank at 70°.
    • This creates one cutting edge which is referred to as the lower edge.
  • 5. Rigid Gracey Curettes
    • Thicker, stronger, and less flexible shank.
    • The rigid shank is preferred for heavier calculus removal.
    • Although the shank is wider, the blade width is the same as a standard Gracey.
    Standard Rigid
  • 6. After Five Gracey Curettes
    • Designed for instrumentation in deeper periodontal pockets.
    • Elongated terminal shank (3mm).
    • Blade thinned by 10% to ease gingival insertions and reduce tissue distention.
    • Provides increased crown clearance.
    3mm
  • 7. Mini Five Gracey Curettes
    • Designed with the same elongated terminal shank (3mm) and thinned blades as the After Five Gracey Curettes.
    • 50% shorter blade for access to smaller roots, narrow pockets, furcations, and developmental grooves.
    Standard After Five Mini Five
  • 8. 15/16 & 17/18 Gracey Curettes
    • In this tutorial, we will focus on the newest Graceys:
      • Gracey 15/16 Mesial
      • Gracey 17/18 Distal
    • These curettes provide the perfect complementary pair of instruments to scale difficult to reach posterior teeth.
  • 9. 15/16 Gracey Curette
    • The 15/16 Gracey Curette was introduced in 1993.
    • It is designed for increased access to molars, where it can be difficult to position the 11/12 Gracey Curette correctly.
    • Mesial posterior use
    • Shank bends similar to 13/14 Gracey, but with the blade offset to scale mesial surfaces of posterior teeth.
  • 10. Comparison of Graceys
    • The 15/16 Gracey Curette (right) has the same shank design as the 13/14 (left); however, the blade is finished like an 11/12 (center) for the posterior mesial surfaces.
    15/16 13/14 11/12
  • 11. 15/16 Gracey Curette
    • 11/12 Gracey Curette – Mandibular First Molar
      • It is often difficult to correctly position the shank parallel to the mesial surface using an 11/12 Gracey Curette. Notice the handle position.
    • 15/16 Gracey Curette – Mandibular First Molar
      • The increased angle of the 15/16 Gracey Curette facilitates correct positioning (resulting in an improved scaling angle) in posterior areas .
    11/12 Gracey 15/16 Gracey
  • 12. 15/16 Gracey Curette
    • 11/12 Gracey Curette – Maxillary Molar - Extraoral Fulcrum
      • In this region of the mouth, it is usually necessary to use an extraoral fulcrum to achieve a parallel shank angle with the 11/12.
    • 15/16 Gracey Curette – Maxillary Molar - Intraoral Fulcrum
      • The increased angle of the 15/16 provides superior adaptation in this area, and allows the choice of an intraoral fulcrum position.
    11/12 Gracey 15/16 Gracey
  • 13. 17/18 Gracey Curette
    • The 17/18 Gracey Curette is designed to improve access to the distal surfaces of posterior teeth.
    • Accentuated angles and long terminal shank allows for placement into deep periodontal.
    • The multiple bends improve the handle positioning so interference from the opposing arch is significantly reduced.
    • Reduced blade length enhances adaptation of the entire blade to the tooth.
  • 14. Comparison of Graceys
    • The accentuated angles on the 17/18 (far right) are its most distinguishing feature.
    • These angles improve crown clearance and handle positioning so that access to the distal surfaces of second and third molars is greatly increased.
    13/14 13/14AF 17/18
  • 15. 17/18 Gracey Curette
    • The terminal shank is almost as long as an After Five Gracey, which increases access in periodontal pockets.
    • The blade is 1mm shorter than standard Gracey blades which enables adaptation of more of the blade to the tooth.
    13/14 After Five 17/18 Gracey Terminal Shank and Blade Comparison 13/14 After Five and 17/18 Gracey Curette
  • 16. 17/18 Gracey Curette
    • 13/14 Gracey Curette
      • Access to the distal surface of a second molar is limited by interference from the opposing arch and the patient’s ability to open widely.
    • 17/18 Gracey Curette
      • With the 17/18’s multiple bends, the handle position is closer to horizontal which minimizes the contact with the opposing arch. Allowing the clinician improved access to difficult to reach posterior areas.
    13/14 Gracey 17/18 Gracey
  • 17. 17/18 Gracey Curette
    • 17/18 Gracey Curette on Mandible (Skull)
      • Access is improved through the multiple exaggerated bends of the 17/18.
    17/18 Gracey
  • 18. 17/18 Gracey Curette
    • 17/18 Gracey and 17/18 Rigid Gracey Curettes
      • The 17/18 is available in Standard (on left) and Rigid (on right) designs.
      • The rigid shank is thicker, providing additional strength for heavy calculus removal.
    Standard Rigid
  • 19. 17/18 Gracey Curette
    • Comparison of Gracey 17/18, 15/16 and After Five 15/16
      • The 17/18 Gracey (right) is the ideal companion to the 15/16 Gracey (left) or the 15/16 After Five (center).
      • These instruments improve access to the most difficult to reach posterior teeth.
    17/18 15/16AF 15/16
  • 20. Available Designs
    • 17/18 Available in:
      • - Standard - Rigid
    • 15/16 Available in:
      • Standard - Rigid - After Five ® - Mini Five ®
    Mini Five ® After Five ® Rigid Standard
  • 21. Summary
    • The Gracey 15/16 Mesial and 17/18 Distal curettes provide the perfect complementary pair of instruments to scale difficult to reach posterior teeth.
    • 15/16
      • Shank bends similar to the Gracey 13/14 but with the blades offset to scale mesial surfaces of the posterior teeth.
    • 17/18
      • Accentuated shank angles and long terminal shank for deep perio pockets.
      • Reduced blade length.
    • Available in:
      • Standard: SG15/16 & SG17/18
      • Rigid: SGR15/16R & SGR17/18R
      • After Five (15/16 only): SRPG15/16
      • Mini Five (15/16 only): SAS15/16
      • #2,4,6,7,8, & 9(EverEdge)
  • 22. Conclusion
    • As a clinician, the Hu-Friedy Gracey 15/16 Mesial and 17/18 Distal will make your job easier in reaching posterior teeth.
    • These great designs will help you to overcome the toughest of scaling assignments.
  • 23. Qualifying Question
    • Thank you for taking the time to learn more about Hu-Friedy’s 15/16 and 17/18 Gracey Curettes .
    • To earn your Hu-Points towards a product evaluation, please exit and answer the following question on the Member Resources Page:
    • The Gracey 15/16 has shank bends similar to the Gracey ______ but with the blade offset.
    • 7/8
    • 11/12
    • 13/14
    • 17/18

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