Glide path importance main.pptx.........

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1. Mastering Glide Path Files

2. Learning Objectives Understand the historical context Importance of Rubber Dam Recognise canal challenges Define and explain the Glide Path Concept Differentiate between Glide Path Instruments Demonstrate Glide Path Techniques Implement clinical decision-making

3. Introduction Root canal treatments involve three major phases—shaping, cleaning, and obturation.

4. Treating calcified canals presents extreme challenges due to the narrowed pulp chamber and canal lumens, complicating access location, negotiation, cleaning, and shaping procedures. Complete obliteration Partial obliteration Localised obliteration Generalised obliteration

5. Based on the degree of calcification, root canal calcification is divided into three categories. 22 , 27 Class I: visible canals, no obvious calcification in root canals, and access to the physiological apical foramen smoothly by the first file Class II: obscuring canals, scattered calcification in root canals, and access to the physiological apical foramen by the first file after canal negotiation Class III: blurring canals, obvious calcification in root canals, and difficult detection of the root canal orifice.

6. Based on the curvature of root canals measured by Schneider’s method, the calculated curvature of root canal is divided into three categories: straight root canals (0–10 degrees of root canal curvature) moderately curved root canals (10–30 degrees of root canal curvature) and severely curved root canals (more than 30 degrees of root canal curvature)

7. By definition, the glide path is a smooth, reproductible passage from the root canal’s orifice to its physiological terminus

8. Manual Hand K files

9. Advantages The K-files provide better tactile sensation and less potential for separation When a small size K-file is removed from the canal, the file often retains an impression of the canal that can alert the operator to the curvatures present in the canal The stiffness of stainless steel hand files aids in path finding and in negotiating blockages and calcifications It is lower in cost and does not require the use of a special endodontic motor

10. Disadvantages Operator fatigue and hand fatigue Time required in the preparation of the glide path Risk of the introduction of canal aberrations with larger file sizes Greater change to original canal anatomy

11. Manual Files Using Reciprocating HandPieces

12. Advantages Reduced preparation time Reduced operator fatigue Reduced hand fatigue, especially in canals with multiplanar curves Reduced risk of instrument separation compared with rotary NiTi methods

13. Disadvantages The need for a special handpiece Apical transport risk when using instruments larger than #15 K-type handpieces Increased risk of dentin removal as a result of the clinician working in the root canals for longer than necessary Reduced tactile sensation Risk of debris extrusion from the apical region due to the insertion of the handpiece by applying force to the apical region

14. Rotary Glide Path Files

15. Advantages Reduced operating time Less modifications in the original morphology of the root canal and less iatrogenic errors in the root canals (step, apical transportation, and zip formation) Less operator fatigue and less hand fatigue Reduced apical extrusion of debris Less post-operative pain after root canal treatment It is an easy technique to learn by physicians

16. Disadvantages Additional costs Increasing the risk of instrument fracture It causes decreased tactile sensitivity

17. Reciprocating Glide Path Files

18. Greater cutting efficiency Reduced amounts of apically extruded debris and better root canal shaping efficiency than those in continuous rotation From a clinical point of view, the use of glide path instruments with recip- rocating motion in teeth with curvatures and specifically periapical lesions may be recommended, as the apical 1 mm region is an area of concern that can affect the overall success of endodontic treatment

19. Summary and Take-Home Msgs Glide path is essential, not optional Select the right tool for the canal anatomy Respect biological and mechanical principles