Antibacterial activity of a new mineral trioxide aggregate-based root canal sealer

作者：Mohammadi Zahed^*; Giardino Luciano; Palazzi Flavio; Shalavi Sousan

来源：International Dental Journal, 2012, 62(2): 70-73.

DOI：10.1111/j.1875-595X.2011.00090.x

• Agar diffusion test
• AH-26 sealer
• CPM sealer
• MTA
• Staphylococcus aureus
• Streptococcus mutans

Objectives: To compare the antibacterial effect of AH-26, white-coloured mineral trioxide aggregate (WMTA) and CPM sealer against Staphylococcus aureus and Streptococcus mutans after 24 h and 1 week. Materials and methods: All materials were prepared according to the manufacturers%26apos; directions immediately before testing. The antibacterial effect of each agent was determined by measuring the diameter of the zone of inhibition in millimetres after incubation at 37 degrees C for 24 h and 7 days in a humid atmosphere. Each test was repeated three times. Results: In the 24-h and 7-day samples, the antibacterial activity of AH-26 was significantly greater than that of the two other materials tested against both bacteria (P %26lt; 0.05). The antibacterial activities of CPM sealer and WMTA against S. aureus were not significantly different (P %26gt; 0.05) in 24-h or 7-day samples, but CPM sealer demonstrated a significantly greater effect than WMTA against S. mutans (P %26lt; 0.05). Conclusion: All products studied exhibited antibacterial activity. However, in 24-h and 7-day samples, AH-26 exerted the greatest activity against both organisms tested.

• 出版日期2012-4