:: Volume 27, Issue 4 (10-2015) ::
J Iran Dent Assoc 2015, 27(4): 182-185 Back to browse issues page
In Vitro Adhesion of Streptococcus Mutans to Polished IPS e.max and Feldspathic Porcelain
Ezatollah Jalalian1, Ghazal Mofrad *2, Mohammad Rahbar3, Afshin Mohseni4, Mahshad Mohebbi5
1- Associate Professor, Department of Fix Prosthodontics, Member of Dental Material Research Center, Dental Branch, Azad Uni-versity, Tehran, Iran
2- Dentist, MPH, University of Nevada, LV, School of Community Health Sciences, Nevada, USA , mofrad@unlv.nevada.edu
3- Associate Professor, Department of Microbiology, School of Dentistry, Dental Branch, Azad University of Tehran, Iran
4- Dentist, MPH, University of Nevada, LV, School of Community Health Sciences, Nevada, USA
5- Dental Student, School of Dentistry, Dental Branch, Azad University of Tehran, Iran
Abstract:   (2711 Views)

Background and Aim: Finding appropriate dental materials with minimal adhesion and colonization of Streptococcus mutans (S. mutans) and other pathogenic bacteria is of great importance. The aim of this study was to compare the level of adhesion of S. mutans to polished IPS e.max and feldspathic porcelain and dental enamel.

Materials and Methods: This in vitro experimental study was conducted on 15 specimens in three groups (five polished IPS e.max Press blocks, five polished feldspathic porcelain blocks and five dental enamel blocks) exposed to S. mutans bacterial suspension (1×106 mg/mL). The specimens were then rinsed twice and 0.1 mL of the new suspension was cultured on blood agar. After 48 hours of storage at 37˚C, S. mutans colonies were counted by naked eye. The results were analyzed using one way ANOVA.

Results: The adhesion of S. mutans was 24.4±8.44 colonies/mm2 to the enamel, 5.6±2.35 colonies/mm2 to polished IPS e.max Press, and 5.8±1.92 colonies/mm2 to feldspathic porcelain. The difference between enamel and the other two groups in terms of adhesion of S. mutans was statistically significant (P<0.001); the two groups of ceramics were not significantly different in this regard (P=0.8).

Conclusion: The adhesion of S. mutans to the enamel was higher than that to polished IPS e.max Press and polished feldspathic porcelain.

Keywords: Streptococcus mutans, Bacterial Adhesion, Dental Porcelain
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Type of Study: Orginal | Subject: Porosthodontics
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