Downloaded 592 times
Uploaded byFasahat Butt
Root canal preparation techniques
This document discusses root canal preparation techniques presented by Dr. Fasahath Ahmed Butt. It covers the objectives of root canal preparations, which are to completely remove pulp tissue and bacteria while maintaining the original root canal anatomy. The main types of preparations discussed are crown-down, step-back, and hybrid techniques. For each technique, the document outlines the basic process and advantages and disadvantages. It also briefly covers different filing techniques used in root canal preparations like watch winding, reaming, and balanced force.
More Related Content
Similar to Root canal preparation techniques
Root canal preparation techniques
- 1. ROOT CANAL PREPARATION TECHNIQUES PRESENTEDBY DR FASAHAT AHMED BUTT
- 2. CONTENTS • OVERVIEW OFROOT CANAL TREATMENT • OBJECTIVES OF ROOT CANAL PREPARATIONS • TYPES OF PREPARATIONS • FILING TECHNIQUES
- 3. Access cavity preparation Working length Initialfiling Cleaning & shaping Obturation Core buildup
- 4. OBJECTIVES BIOLOGICAL COMPLETE REMOVAL OF •PULPAL TISSUE • BACTERIA MECHANICAL • CONTINUOUSLY TAPERING PREPARATION • MAINTAINING ORIGINAL ANATOMY • MAINTAINING POSITION OF APICAL FORAMEN • NARROW APEX
- 6.
- 7. TYPES OF ROOTCANAL PREPARATIONS • CROWN DOWN • STEP BACK • HYBRID
- 8. CROWN DOWN Caries removal& access cavity GG drills WL#15 k file Smaller file inserted & repeated until working length is reached Watch windingLarger file inserted
- 10. ADVANTAGES • ELIMINATES CORONALINTERFERENCES • EASY ACCESS • IMPROVED DISTRIBUTION OF IRRIGANT • FACILITATES REMOVAL OF DEBRIS • REDUCES CHANGE IN WL DURING APICAL PREPARATION
- 11. DISADVANTAGES • INCREASED REMOVALOF TOOTH STRUCTURE
- 12.
- 14. ADVANTAGES • APICAL PREPARATIONKEPT SMALL • REDUCES PROCEDURAL ERRORS • IMPROVES DEBRIDEMENT • SMALLER FLEXIBLE INSTRUMENTS ARE USED IN THE APICAL REGION WHILE LARGER USED SHORT OF THE APEX
- 15. DISADVANTAGES • BLOCKAGE OFTHE CANAL MAY OCCUR • IRRIGATION CAN BE DIFICULT • RISK OF DEBRIS EXTRUSION • ALTERATION IN WORKING LENGTH
- 17. ADVANTAGES • IT PERMITSCANAL MORPHOLOGY TO DICTATE PREPARATION SHAPE • DOES NOT REQUIRE FORCING OF FILES INTO CANAL THAT CANNOT ACCOMMODATE THEM • MINOR CANAL OBTURATION • SLIGHT ENLARGEMENT OF THE CANAL IN APICAL TO CORONAL DIRECTION
- 18. HYBRID TECHNIQUE Canal negotiation Apical clearing WL determination MAF determination Straightline access Rotary preparation of the middle one thirds of the root Apical step back
- 19. ADVANTAGES • LESS CHANCESOF LEDGE FORMATION
- 20. FILING TECHNIQUES • WATCHWINDING • REAMING • FILING • CIRCUMFERENTIAL FILING • ANTICURVATURE • BALANCED FORCE TECHNIQUE
- 21.
- 22.
- 23.
- 24.
- 25.
- 26.
- 27. REFERENCES • TORABINEJAD • COHEN’SPATHWAY OF PULP • GOOGLE
- 28.