Submitted: 22 Jul 2013
Accepted: 18 Nov 2013
ePublished: 18 Nov 2013
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J Iran Dent Assoc. 2013;25(3): 169-174.
  Abstract View: 19

Original

Comparison of Candidal and Bacterial Adherence to Denture Base Acrylic Resins

Mohammad Ebrahimi Saravi, Kamyar Zomorodian, Mahroo Vojdani*, Mndana Sattari
*Corresponding Author: Email: vojdanim@yahoo.com

Abstract

  Background and Aim : Futura Gen and GC Reline Hard denture chairside reline materialshave recently been introduced to the dental market. Although yet to be scientifically proven, these products are claimed to have optimal characteristics. This study aimed to compare the adherence of Candida strains and bacteria to denture base acrylic resins .

  Materials and Methods : In this in-vitro experimental study, 24 discs were fabricated of Futura Gen, GC Reline Hard and Meliodent reline acrylic resins. Specimens were inoculatedwith three Candida strains and Streptococcus mutans at three time points and after staining,their optical absorbance (microbial adhesion and biofilm formation) was calculated using spectrophotometry. Two-way ANOVA and Tukey’s HSD test were applied for statistical analysis .

  Results : Absorbance (optical density)of C. albicans strains on Futura Gen, GC Reline and Meliodent hard reline acrylic resins was 0.022, 0.011 and 0.028 at one hour, 0.057, 0.022 and 0.062 at 24 hours and 0.101, 0.051 and 0.11 at one week, respectively. Absorbance of C. glabrata on the mentioned resins was 0.012, 0.008 and 0.016 at one hour, 0.039, 0.029 and 0.044 at 24 hours and 0.075, 0.068 and 0.081 at one week, respectively. Absorbance of C. dubliniensis on these resins was 0.026, 0.035 and 0.027 at one hour, 0.064, 0.066 and 0.067 at 24 hours and 0.11, 0.12 and 0.13 at one week, respectively. Absorbance of standard strain of S. mutans was 0.027, 0.014 and 0.035 at one hour, 0.064, 0.026 and 0.064 at 24 hours and 0.11, 0.05 and 0.11 at one week, respectively. Candidal and bacterial adhesion to denture base acrylic resins was not significantly different at the understudy time points (P>0.05 ).

  Conclusion : Except for C. dubliniensis, the lowest absorbance belonged to Meliodent. However, absorbance increased over time. Optical absorbance of S. mutans was lower in Meliodent. Among yeast strains, the highest absorbance belonged to C. dubliniensis .

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