Fundamentals of Endodontics Peter Briggs, Ahmed Farooq...
Transcript of Fundamentals of Endodontics Peter Briggs, Ahmed Farooq...
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Dental Simulation (Rotary Reciproc Preparation)
Practical Endodontics 2015
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Reciprocation
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Single file systems • Reciprocation technology
• Single file systems
• A defined back and forth movement as oppose to continuous rotation
• Most popular systems are Wave One (DENTSPLY) and Reciproc (VDW)
Practical knowledge
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Reciprocation – a alternating back-and-forth movement
CW and CCW movements determine amplitude of reciprocation
Technical knowledge
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Need a motor that reciprocates
- Instrument is first driven in a cutting direction and then reverses to release the instrument.
- Several reciprocating movements complete one 360 degree rotation.
-The angle in the cutting direction is greater than the angle in the reverse direction.
- Angles set in the motors
Technical knowledge
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Reciproc Technique • Access cavity/ straight-
line access
• EWL from rad
• Irrigate access cavity
• Select instrument R25, R40 or R50
Practical knowledge
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• Introduce instrument into orifice
• Press foot pedal when instrument at orifice
• Push on the peck
Practical knowledge
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In and out ‘Pecks’
• Slow in-and-out pecks
• 3mm movements
• “3-pecks and out!”
• 1 in-and-movement = 1 peck
3 X
Practical knowledge
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• Remove instrument and clean/ inspect
Practical knowledge
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Simulation preparation of MB2
Practical knowledge
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Clinical Reciproc re-treatment ‘in and out pecking’
Practical knowledge
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Reciproc Technique • Re-irrigate and maintain canal
patency with #10 K file
Practical knowledge
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Rotary Instrument Advantages / Disadvantages
-Safety
-Shorter working time
-Instruments cantering ability
-Greater taper shapes for effective disinfection
-Less number of instruments required
Practical knowledge
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