Recent Advances In Instrumentation Techniques
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The document summarizes recent advances in endodontic instrumentation techniques. It discusses the limitations of conventional stainless steel files and the development of nickel-titanium (Niti) rotary files starting in the 1980s. It then describes several popular contemporary rotary Niti file systems, including Profile, ProTaper, K3, and RACE files. Guidelines for the safe use of rotary Niti files are also outlined. The document concludes by discussing potential future advances such as the use of lasers and advances in apex locator technology.
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Recent Advances In Instrumentation Techniques
- 1. Recent Advances in Instrumentation Techniques MIU (Misr International University) 5 th Year Lecture www.arefai.edulbogs.org www.idclinics.com Dr. Ashraf S. Refai Lecturer of Endodontics Al-Azhar University 21 st & 22 nd of December 2008
- 3. www.arefai.edublogs.org What is Conventional???
- 4. Components of a Preparation Technique (System of Preparation) www.arefai.edublogs.org
- 6. Step Back Technique www.arefai.edublogs.org
- 7. Step Down or Crown Down Techniques www.arefai.edublogs.org
- 11. Disadvantages www.arefai.edublogs.org Time Consuming Occupational Hazards Standardization Curved Canals Iatrogenic Errors Debris Extrusion
- 12. Endodontic Advancement Timeline www.arefai.edublogs.org 1900’s Use of stainless steel rotary instruments 1970-80 Revival of use of stainless steel rotary instruments 1988 Walia et al. uses first manual Niti instruments 1950-60 Discovery of Niti Alloy 1990’s Combination of Rotary & Niti technology To Date Development of different Rotary Niti ?
- 22. Tip Size: 0.19 www.arefai.edublogs.org Reduction in Taper
- 23. S1 Tip Size: 0.185 S2 Tip Size: 0.20 www.arefai.edublogs.org Variable Taper Increase along the length of the file
- 24. F1 Tip Size: 0.20 F2 Tip Size: 0.25 F3 Tip Size: 0.30 www.arefai.edublogs.org Taper Between D 1 -D 3 : F1 ( 0.7 ), F2 ( 0.8 ), F3 ( 0.9 )
- 27. See you next week… www.arefai.edublogs.org
- 45. Disadvantages www.arefai.edublogs.org Impossible to Estimate CDJ Distortion 2D of 3D Situation (BL Dimension) Overlap of Roots Time Consuming Multiple Exposures
- 46. The Birth of the ‘Apex Locator’ www.arefai.edublogs.org
- 49. Considerations www.arefai.edublogs.org Metallic Restorations False Readings Moisture Large Lesion Narrow Canals Contact with Oral Mucosa Retreatment Cases Iatrogenic Errors
- 50. How Does it Work??? www.arefai.edublogs.org
- 54. Thank you for your attention… www.arefai.edublogs.org