2. 1 Mechanized Instrumentation

3. 2 ENERGY What it is Where it comes from Where it goes What it does

4. 3 What counteracts the heat? light touch constant motion water lavage never operate sonics or ultrasonics without water!

5. 4 Sonic and Ultrasonic Instrumentation Refer to Dentsply CD Course…

6. 5 Physical Properties for Sonics and Ultrasonics Electronically powered devices that produce vibratory motions to fracture deposits from the tooth surface. “cavitation” heat production water lavage

7. 6 Advantages of ultrasonic debridement reduced working time Patient comfort and safety improved operator comfort Histological comparisons therapeutic effects –Antimicrobial lavage –Effect on microflora

8. 7 Limitations of ultrasonic debridement Less tactile sensitivity Contaminated aerosols Reduced visibility (indirect vision) Potential to gouge root and tooth surface if improperly used

9. 8 Cautions and Contraindications Pacemakers Communicable diseases Young children Sensitive teeth - recession Gaggers Decalcification and tooth brush abrasion Implants

10. 9 Sonic instrumentation portable less expensive no separate hookups required efficient

11. 10 Ultrasonic Instrumentation more vibrations per second more tip selection lighter handpiece separate water/medicament source not as likely to walk away...

12. 11 Technique Fulcrum Position of tip Pressure - feather touch (10 grams) Stroke –overlapping “crosshatch” –constant motion

14. 13 Ultrasonic Inserts Streamline ® Designs #10 Universal General Debridement #1000 Triple Bend Heavy Debridement #100 Thin Light Debridement #3 Beavertail Heavy Debridement

15. 14

16. 15 Tips do not last forever… 1 mm of tip wear = 25% loss of efficiency 2 mm of tip wear = 50% loss of efficiency *Slim-line tips are particularly prone to breakage.

18. 17 How old is this insert? DENTSPLY 0106 30K FSI-SLI-10L Month manufactured Year manufactured

19. 18 If it hurts… You are doing it –THE WRONG WAY

20. 19 Proceed to Hu-Friedy Ultrasonic Insert Slides…