7 Questions
What is the first disadvantage mentioned in the text?
Shrinkage occurs with the evaporation process causing voids
Which tissue is at risk of irritation according to the text?
Periradicular tissue
What causes the irritation of periradicular tissues?
The solvent
Which of the following is NOT a disadvantage mentioned in the text?
Discoloration of the tooth structure
What is the cause of the voids mentioned in the text?
The evaporation process
Which of the following statements is true according to the text?
The shrinkage causes irritation of periradicular tissues by the solvent
Based on the information provided, which of the following can be inferred?
The technique involves the use of a solvent
Study Notes
Canal Preparation and Obturation
- The apical foramen should be as small as possible to prevent gutta-percha extrusion.
Gutta-Percha Injection Technique
- Coat canal walls with sealer using the master apical file.
- Preheat gutta-percha pellet in the gun and position the needle 3-5 mm from the apical preparation.
- Gradually inject gutta-percha by squeezing the gun's trigger while backing the needle out of the canal.
- Use pluggers dipped in alcohol to compact gutta-percha, continuing until it cools and solidifies.
Compaction and Common Results
- Compact gutta-percha until it cools and solidifies to compensate for contraction on cooling.
- Overextension and underextension are common results.
Carrier-Based Gutta-Percha (Thermafil and Soft Core Cones)
- Introduced as a gutta-percha obturation material with a solid core.
- The technique facilitates adaptation to root canal walls apically and laterally.
Disadvantages of Carrier-Based Gutta-Percha
- Shrinkage occurs with evaporation, causing voids.
- Solvent can irritate periradicular tissues.
Test your knowledge on the gutta-percha obturation technique used in root canal treatments. Learn about the steps involved in filling a root canal correctly to prevent extrusion of gutta-percha. Practice identifying the correct procedures for effective obturation.
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