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:: Volume 33, Issue 2 (Spring 2015) ::
J Dent Sch GYEAR__, 33(2): 131-137 Back to browse issues page
In Vitro Effects of Four Porcelain Surface Treatment Methods on Adhesion of Lactobacilli Acidophilus
SH. Lavaf , A. Azizi * , M. Rahbar , AH. Najafpour , S Rezaee Harzandi
Associate Professor , drarashazizi@yahoo.com
Abstract:   (1754 Views)

  Objective: Adhesion of Lactobacillus acidophilus (L. acidophilus) to dental porcelain surface may lead to gingival inflammation and secondary caries. Surface roughness is among the factors affecting this adhesion. The purpose of this study was to evaluate the effects of four different surface treatment methods on adhesion of L. acidophilus to dental porcelain.

  Methods: Sixty specimens (3x10mm) were fabricated of Noritake porcelain and divided into 4 groups (n=15) treated with one of the following four surface finishing techniques: 1. Auto-glazing 2. Over-glazing 3. Polishing with Kenda kit and 4. No surface treatment (non-glazed specimens). Specimens were inoculated with bacterial suspension containing 1x106colony forming units per milliliter (CFU/mL) and L. acidophilus adhesion to the surfaces was evaluated using a spectrophotometer. Data were analyzed using one-way ANOVA and Tukey’s HSD test.

  Results: The mean bacterial adhesion was 0.1440 (0.00429) to auto-glazed specimens, 0.0750 (0.00256) to over-glazed specimens, 0.1800 (0.00325) to polished specimens and 0.7064 (0.00408) to the non-glazed specimens. The differences in this regard among groups were statistically significant (p<0.001).

  Conclusion: Over-glazed specimens caused the lowest and non-glazed specimens caused the highest bacterial adhesion. The glazed surfaces caused less adhesion than the polished surfaces.

Keywords: Bacterial adhesion, Dental porcelain, Lactobacillus acidophilus, Surface treatment
Full-Text [PDF 147 kb]   (495 Downloads)    
Type of Study: Original Article | Subject: Special
Received: 2015/06/21 | Accepted: 2015/06/21 | Published: 2015/06/21
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Lavaf S, Azizi A, Rahbar M, Najafpour A, Rezaee Harzandi S. In Vitro Effects of Four Porcelain Surface Treatment Methods on Adhesion of Lactobacilli Acidophilus. J Dent Sch. 2015; 33 (2) :131-137
URL: http://jds.sbmu.ac.ir/article-1-1406-en.html

Volume 33, Issue 2 (Spring 2015) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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