Piezo Technology - Power Driven Scalers GN PDF

Piezo electric technology PIEZO TECHNOLOGY Benjamin Tighe Aims and outcomes Provide an insight into the working action of Piezon Improve confidence in tip selection Develop knowledge of Piezon technology (specifically related to EMS products)...

Piezo electric technology PIEZO TECHNOLOGY Benjamin Tighe Aims and outcomes Provide an insight into the working action of Piezon Improve confidence in tip selection Develop knowledge of Piezon technology (specifically related to EMS products) 2 3  Remove hard deposits in most minimally invasive way Parts of the Piezon Water reservoir Some hand piece’s have LEDs within them to improve visibility 4  Biggest difference between magnetostrictive and piezon is how they work Parts of the Piezon Minimal thermal changes to the tip - requires less water than magnetostrictive Piezon Handpiece – delivery of the ‘power’ A chuck used to tighten tip onto hand piece Tip – working end of the instrument 5 6 Wouldn’t use the same tip for different areas of the mouth (supra, sub, pocket, stain) Just replace tip when they wear Tip selection – there are LOTS! Stain removal PMPR below the clinical crown Post ortho cement removal Diamond tip – Removal of overhangs General periodontal maintenance Perio Slim tip Can use generally 95% of cases Thin but strong Thickness of UNC15 probe 7  Specifically for EMS Doesn’t transmit any thermal change No plastic residue left behind Implant tip Used with chuck Does not get thrown away Polyether Ether Ketone Fibre Stainless steel core to prevent breakage Fully Autoclavable Thermal changes 8 Checking the tips Need to be checking tips regularly Only use the last 2mm of the tip 25% loss in efficiency at 1mm wear 50% loss in efficiency at 2mm wear Indications of use PI tip - more gentle DO NOT USE MAGNETOSTRICTIVE ON PRIMARY TEETH 10 PI TIP - can be used up to 3mm subgingivally Cavitron Piezo Olliptical - oval - shattering calculus from tooth - hammer Moves laterally - shaven the calculus off Clinical Benefits of Piezon use: The mechanical vibration of the ultrasonic is the primary means of calculus removal from the tooth surface Must only use lateral sides of the tip Piezon creates microfractures Breaking the bonds Shattering the dense deposit 5-30 degrees against the tooth surface Last lateral 2mm of the tip only Clinical Benefits of Piezon use: The mechanical vibration of the ultrasonic is the primary means of calculus removal from the tooth surface Must only use lateral sides of the tip Piezon creates microfractures End 2mm of tip Ultrasonic vibration from piezo scaler is generated from ceramic discs/quartz plates within handpiece Breaking the bonds Generated in longitudinal plane Creating linea tip motion - 32,000 linea movements per second No magnetic field No heat generated - less water required Shattering the dense deposit Water irrigation required for fluid Lavage and microstreaming Tiny heat from friction of tip and calculus. 5-30 degrees against the tooth surface Clinical Benefits of Piezon use: The mechanical vibration of the ultrasonic is the primary means of calculus removal from the tooth surface Must only use lateral sides of the tip Piezon creates microfractures Breaking the bonds Shattering the dense deposit 5-30 degrees against the tooth surface Water flow Unlike Magnetostrictive the water is not there to keep the tip cool Irrigation flushes the periodontal pocket out – increased tissue healing Cavitation destroys bacteria and disrupts biofilm Acoustic microstreaming impedes biofilm adherence Cavitation When water meets the vibrating tip and created tiny micro bubbles. These then collapse in on themselves to create energy. It has no influence on hard deposits but oxygenates tissues and breaks down bacteria cell walls. 32,000 times a second. Acoustic turbulence Continuous stream of fluid flown over vibrating tip. Antimicrobial effect within periodontal pocket. Distrupt subgingival biofilm and irrigate toxins. 32,000 times a second.  “Down the elevator, up the stairs” When working subgingival pocket, go straight down periodontal pocket and then use stroke 2-3mm across surface of tooth (vertical, horizontal, oblique) to work up slowly. Strokes need to slightly overlap to ensure deposit is not left behind. ONLY USE LAST 2MM AND LATERAL SIDE OF TIP 20