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Effects of calcium hydroxide paste medication on coronal leakage
S Sevimay1, M D Oztan, D Dalat
1Department of Endodontics, Faculty of Dentistry, University of Ankara, Ankara, Turkey. seevimay@dentistry.ankara.edu.tr
Journal of Oral Rehabilitation
|March 18, 2004
Summary
Calcium hydroxide (Ca(OH)2) intracanal medication does not affect coronal leakage in root canals. This in vitro study found no significant difference in dye penetration between medicated and non-medicated canals after obturation.
Area of Science:
- Endodontics
- Dental Materials Science
- In Vitro Research
Background:
- Intracanal medicaments are crucial in endodontic treatment.
- Calcium hydroxide (Ca(OH)2) is a commonly used intracanal medicament.
- Understanding its effect on coronal seal is vital for long-term treatment success.
Purpose of the Study:
- To evaluate the impact of Ca(OH)2 intracanal medication on coronal leakage.
- To compare coronal leakage in root canals medicated with Ca(OH)2 versus those without medication prior to obturation.
Main Methods:
- Sixty-one single-rooted teeth were prepared and divided into three groups.
- Groups 1 and 2 received Ca(OH)2 medication after smear layer removal (EDTA and NaOCl).
- Group 3 served as a control without intracanal medication. Coronal leakage was assessed using linear dye penetration after obturation with gutta-percha and sealer.
Main Results:
- No statistically significant difference in coronal dye leakage was observed between the experimental groups (P > 0.05).
- The use of Ca(OH)2 as a temporary intracanal dressing did not influence the extent of coronal leakage.
- Scanning Electron Microscopy (SEM) confirmed the removal of Ca(OH)2 paste in relevant groups.
Conclusions:
- Intracanal medication with Ca(OH)2 does not compromise the coronal seal of root-filled teeth.
- Clinicians can confidently use Ca(OH)2 as an interim dressing without adversely affecting coronal leakage.