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Basic Chairside Instruments and Tray Systems

19. Basic Chairside Instruments and Tray Systems. Working end Shank Handle. Basic Structural Parts of Dental Hand Instruments. Basic Classification of Dental Instruments. Number of working ends Functions Manufacturer’s number Black’s formula. Classification of Instruments.

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Basic Chairside Instruments and Tray Systems

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  1. 19 Basic Chairside Instruments and Tray Systems

  2. Working end Shank Handle Basic Structural Parts of Dental Hand Instruments

  3. Basic Classification of Dental Instruments • Number of working ends • Functions • Manufacturer’s number • Black’s formula

  4. Classification of Instruments • Black’s three-number formula • First number • Width of the blade • Second number • Length of the blade • Third number • Angle of the blade

  5. Classification of Instruments • Black’s four-number formula • First number • Width of the blade • Second number • Degree of the angle of the cutting edge of the blade to the handle

  6. Classification of Instruments • Black’s four-number formula • Third number • Length of the blade • Fourth number • Angle of the blade to the axis of the handle

  7. Chisels Straight Wedelstaedt Bi-angle Cutting Instruments

  8. Cutting Instruments • Hatchets • Hoes • Gingival margin trimmers • Angle former • Excavators

  9. Noncutting Instruments • Basic examination instruments • Mouth mirrors • Explorers • Cotton pliers • Periodontal probes

  10. Plastic filling instruments Composite instruments Amalgam carriers Amalgam condensers Carvers Noncutting Instruments

  11. Burnishers Files Finishing knives Miscellaneous Spatulas Articulating forceps Scissors Noncutting Instruments

  12. Care and Maintenance • Extend lifespan of instrument due to proper care and maintenance • Properly clean and sterilized • Examine all instruments thoroughly

  13. Head Straight shank Neck Latch-type shank Shank Friction-grip shank Dental Rotary Instruments • Parts of the bur • Shank • Neck • Head

  14. Cutting Diamond Finishing Surgical Laboratory Fissurectomy Types of Burs

  15. Abrasives • Nonbladed instruments used to finish and polish restorations and appliances • Categorized by the shapes and materials they are made of, such as rubber, stone, and sandpaper

  16. Types and Functions of Abrasives • Mandrels • Rods of various lengths used in low-speed handpieces • Discs • Used to polish, smooth, and adjust restorative materials and dental appliances

  17. Types and Functions of Abrasives • Stones • Used for cutting, polishing, and finishing amalgam, gold, composite, and porcelain restorations

  18. Types and Functions of Abrasives • Rubber wheels • Used for finishing and polishing • Rubber points • Used for polishing • Adaptable for defining anatomy in restoration

  19. Dental Handpieces • Used for the following: • Remove dental decay • Prepare tooth for restoration • Polish • Polish and finish dental restorations • Cut, finish, and polish dental appliances • Models and trays

  20. Parts of the Dental Handpiece • Working end • Head • Shank • Connection end

  21. High-speed handpiece Low-speed handpiece Electric handpiece Dental Handpieces

  22. Maintenance and Sterilization of Dental Handpieces • Maintenance • Follow manufacturer’s directions carefully • Sterilization

  23. Air Abrasion Unit and Microetcher • Air Abrasion • Reduces use of anesthetics and drilling with dental handpieces • Microetcher • Smaller version of air abrasion unit used for intraoral sandblasting and dentin bonding

  24. Tray Systems • Preset tray system • Most commonly used • Instruments and auxiliary items • Placed on a tray in the order of their use during the procedure • Other systems

  25. Color Coding Systems • Color coding may be set up to indicate: • Procedures • Treatment room instruments storage • Additional sets of instruments • Individual operators • Sequence of use • Any combination of the above

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