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Coronal sealing ability of three temporary filling materials
Mandana Naseri1, Zohreh Ahangari, Mahyar Shahbazi Moghadam
1Department of Endodontics, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Iranian Endodontic Journal
|October 13, 2012
Summary
Coltosol and Cavizol provide a reliable coronal seal for temporary root canal fillings up to one week. Zonalin demonstrated increased leakage over time, making it less suitable for extended temporary use.
Area of Science:
- Dentistry
- Dental Materials Science
Background:
- Adequate coronal seal is crucial for successful root canal therapy.
- Temporary filling materials play a vital role in maintaining this seal.
Purpose of the Study:
- To compare the coronal seal ability of three temporary restorative materials: Coltosol, Cavizol, and Zonalin.
- To evaluate this seal over different time intervals (1 day, 1 week, 4 weeks).
Main Methods:
- 98 molar teeth underwent access cavity preparation and were randomly assigned to time groups (1 day, 1 week, 4 weeks).
- Teeth were restored with Coltosol, Cavizol, or Zonalin and incubated.
- Dye penetration using 2% methylene blue was assessed after longitudinal sectioning.
Main Results:
- All materials exhibited increased leakage from day 1 to week 4.
- Zonalin showed significantly higher leakage than Coltosol and Cavizol at all time points (P<0.05).
- No significant difference in leakage was observed between Coltosol and Cavizol.
Conclusions:
- Coltosol and Cavizol are suitable temporary filling materials for up to one week.
- Zonalin is less effective for longer-term temporary coronal sealing due to increased leakage.
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