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:: Volume 22, Issue 3 (Foll Text in Persian 2010) ::
J Iran Dent Assoc 2010, 22(3): 161-166 Back to browse issues page
Comparison of the self-antimicrobial effect of six irreversible hydrocolloid impressions on oral flora microorganisms
Homeyra Ansari-Lari , S.Mohammad reza Sazvar , Parsa Atash-Razm , Hoseain Rastegarian , Saeid Epakchi , Nima Moharamnejad * 1
1- , nima_mnj@yahoo.com
Abstract:   (16196 Views)

  Comparison of the self-antimicrobial effect of six irreversible hydrocolloid impressions on oral flora microorganisms

  

  Dr. Ansari-Lari H.,1 Dr. Sazvar MR.,1 Dr. Atash-Razm P.,1 Dr. Rastegarian H.,2 Dr . Epakchi S.,3

  Dr. Moharamnejad N.4

  1 Assistant Professor, Department of Prosthodontics, School of Dentistry, Islamic Azad University. Tehran, Iran.

  2 Assistant Professor, Department of Microbiology, School of Dentistry, Islamic Azad University. Tehran, Iran.

  3 Dentist. 4 Dentist, Craniomaxillofacial Research Center, Dr. Shariati Hospital, Tehran University of Medical Sciences. Tehran, Iran.

  

  (Received 3 March, 2010 Accepted 16 August, 2010)

  

  Abstract

  

  Background and Aim : The infection transmission by impressions to the laboratory is growing concern for clinicians and laboratory technicians. This study aimed to compare the self-antibacterial effect of six irreversible hydrocolloid impression materials (Iralgin, Xantalgin, Tropicalgin, Plastalgin, Hydrogum and Orthoprint) on oral flora microorganisms.

  Materials and Methods In this experimental set-up, 108 irreversible hydrocolloid specimens including alginate disks with 1 mm thickness, 5 mm diameter and 30±2 mg weight, and 18 sterile paper disks as negative control specimens (totally 126 specimens) were prepared. These specimens were transferred to Staphylococcus aureus (Group 1), Pseudomonas aeruginosa (Group 2) and Candida albicans (Group 3) fresh microbial environments. After 48 hours incubation in 37 degrees Celsius, the maximum growth inhibition zone diameters were recorded. Statistical analysis was performed by ANOVA or Friedman test.

  Results : No zone of inhibition was observed around the control specimens. Iralgin and Tropicalgin specimens had significant growth inhibition on Group 1. Tropicalgin more than Iralgin and Iralgin more than the other specimens significantly inhibited Group 2 microorganisms. Plastalgin specimens had significant growth inhibition on Group 3 (P < 0.05).

  Conclusion : Some of the investigated alginates had self-antibacterial effects however, disinfection of impressions with other techniques are still inevitable.

  Key words : Alginate - Disinfection - Staphylococcus aureus - Pseudomonas aeruginosa - Candida albicans .

 

  Corresponding Author : Dr. Moharamnejad N ., Dentist, Craniomaxillofacial Research Center, Shariati General Hospital, Tehran University of Medical Sciences. Tehran, Iran.

  e.mail: nima_mnj@yahoo.com

Keywords: Alginate, Disinfection, Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans
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Type of Study: Research | Subject: Prosthodontics
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Ansari-Lari H, Sazvar S R, Atash-Razm P, Rastegarian H, Epakchi S, Moharamnejad N. Comparison of the self-antimicrobial effect of six irreversible hydrocolloid impressions on oral flora microorganisms. J Iran Dent Assoc 2010; 22 (3) :161-166
URL: http://jida.ir/article-1-773-en.html


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Volume 22, Issue 3 (Foll Text in Persian 2010) Back to browse issues page
Journal of Iranian Dental Association

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