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Endo 10

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Endo 10

  1. 1.  The tooth is asymptomatic.  The canal is dry  There is no sinus tract.  There is no foul odor.  A negative culture is obtained. Criteria for root canal obturation
  2. 2. Root Filling Techniques For Gutta-percha
  3. 3. it has several disadvantages and cannot be considered as one that seals canals completely. the technique is simple,
  4. 4. The master cone should need some force to be seated inside the canal & some force is required to dislodge the master cone from the canal. Tug backTug back
  5. 5. The advantage of the lateral compaction technique in comparison with the single- cone technique 1. reduces the amount of sealer left in the canal, 2. the length control of the filling is quite good 3. no filling material is extruded beyond the foramen. 4. The seal is good in comparison with other techniques. . The disadvantage of the lateral compaction method root filling consists not of a homogeneous mass of root filling material but rather of a large number of individual points tightly pressed together and joined by the frictional grip of the cementing substance
  6. 6. Solvent-softened gutta-percha
  7. 7. Softened gutta-percha techniques Warm lateral compaction
  8. 8.  A distinct disadvantage is that the softening of the gutta-percha may lead to overextension of root filling material.  The advantage of warm lateral compaction is that it leads to a homogeneous mass that, permitted significantly less leakage than cold lateral compaction.
  9. 9. Warm vertical compaction
  10. 10.  The advantage of the warm vertical compaction technique is that it results in a homogeneous mass of guttapercha, well-adapted to the canal wall, that requires a minimum of sealer. • The disadvantage is that the technique almost consistently leads to extrusion of filling material
  11. 11. Thermomechanical compaction
  12. 12. Thermomechanical compaction  The advantage is that it is a very fast technique leading to a compact mass of gutta-percha that, in wide canals, resulted in less Leakage than lateral compaction.  The disadvantage is that the technique requires a lot of practice to get consistent results.
  13. 13. Injection technique The Obtura system uses a pressure syringe in which the gutta- percha is warmed to 200°C and expressed into the canal through a needle as fine as 25 gauge (0.5 mm diameter). The gutta- percha leaves the needle at approximately 70°C.
  14. 14. Advantages of the injection technique are similar to those of warm vertical compaction. It also is useful in wide canals with an apical stop and in cases of internal resorption Advantages of the injection technique are similar to those of warm vertical compaction. It also is useful in wide canals with an apical stop and in cases of internal resorption
  15. 15. The disadvantage is the difficulty of controlling the level of the root filling, with a possible under- or overfill as a result. Shrinkage of the gutta-percha during cooling may cause voids
  16. 16. Core carrier technique
  17. 17. Core carrier technique
  18. 18.  The advantage of this technique is that, once the cone is properly heated in the oven with this system, the canal can be well obturated in all its dimensions within a short time.  The advantage of this technique is that, once the cone is properly heated in the oven with this system, the canal can be well obturated in all its dimensions within a short time. The disadvantage of the system is that, especially in curved canals, there is a risk for gutta-percha to be stripped off, thus, the core material will only become cemented apically

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