Antibacterial and antifungal properties of polyether impression materials

Bal, Bilge Turhan; Yılmaz, Handan; Aydın, Cemal; Yılmaz, Caner; Al, Funda Doğruman

doi:10.2334/josnusd.49.265

Cited by 6 publications

(7 citation statements)

References 17 publications

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“…The hydrophilic properties of polyether impression materials require that the disinfection process should not adversely affect dimensional accuracy or surface detail of each impression. [24]…”

Section: Discussionmentioning

confidence: 99%

Effect of mixing techniques on bacterial attachment and disinfection time of polyether impression material

et al. 2013

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Objective:The aim of this study was 2-fold. The first aim was to evaluate the effects of mixing technique (hand-mixing or auto-mixing) on bacterial attachment to polyether impression materials. The second aim was to determine whether bacterial attachment to these materials was affected by length of exposure to disinfection solutions.Materials and Methods:Polyether impression material samples (n = 144) were prepared by hand-mixing or auto-mixing. Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa were used in testing. After incubation, the bacterial colonies were counted and then disinfectant solution was applied. The effect of disinfection solution was evaluated just after the polymerization of impression material and 30 min after polymerization. Differences in adherence of bacteria to the samples prepared by hand-mixing and to those prepared by auto-mixing were assessed by Kruskal-Wallis and Mann-Whitney U-tests. For evaluating the efficiency of the disinfectant, Kruskal-Wallis multiple comparisons test was used.Results:E. coli counts were higher in hand-mixed materials (P < 0.05); no other statistically significant differences were found between hand- and auto-mixed materials. According to the Kruskal-Wallis test, significant differences were found between the disinfection procedures (Z > 2.394).Conclusion:The methods used for mixing polyether impression material did not affect bacterial attachment to impression surfaces. In contrast, the disinfection procedure greatly affects decontamination of the impression surface.

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Section: Discussionmentioning

confidence: 99%

Effect of mixing techniques on bacterial attachment and disinfection time of polyether impression material

et al. 2013

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“…However, in the agar diffusion test, the size of the microbial inhibition zone depends upon the solubility and diffusion of the test substance 21 . Besides, it does not distinguish between bacteriostatic and bactericidal properties of dental materials 8 . Therefore, further investigations are necessary to evaluate the antimicrobial activity of disinfectant agents derived from chlorhexidine incorporated into dental stone at the time of mixing.…”

Section: Discussionmentioning

confidence: 99%

“…This may become a problem as some impression materials, such as polyether, have a hydrophilic nature which is not dimensionally stable 6,7 . Disinfection procedures may also affect the physical properties of these materials 8 . In spite of methods for disinfecting impressions being effective, they are not always carried out 1 .…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of disinfectant agents incorporated into type IV dental stone

et al. 2011

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doi: 10.1111/j.1741‐2358.2011.00462.x   Antimicrobial activity of disinfectant agents incorporated into type IV dental stone Purpose: This study evaluated the antimicrobial activity of two disinfectant agents, 2% chlorhexidine digluconate solution (CHX) and 98% chlorhexidine hydrochloride powder (HYD), incorporated into type IV dental stone at the time of mixing. Material and methods: Agar diffusion test was used for the following microorganisms: Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Candida albicans. The specimens were grouped in: (1) dental stone mixed with sterile distilled water; (2) paper disc soaked with CHX; (3) dental stone mixed with CHX; and (4) dental stone with incorporation of HYD, in 1% proportion of the dental stone mass and mixed with sterile distilled water. The culture medium was inoculated with microbial suspensions 1 and 24 h after pouring of the dental stone. The antimicrobial activity was evaluated by the average diameter of microbial growth inhibition zones. The data were analysed with a nested anova (p < 0.05) and Tukey test for specific comparisons. Results: The disinfectant agents demonstrated antimicrobial activity against all microorganisms, with the exception of C. albicans, against which the CHX was ineffective in two periods of analysis. Significant differences between disinfectants were found with all microorganisms. Conclusion: The disinfectant agents analysed were effective against most of the microorganisms tested, except C. albicans.

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“…[81011] Therefore, chemical disinfectants such as 2% glutaraldehyde and 0.5% sodium hypochlorite have a broad-spectrum antimicrobial activity such as bactericidal, tuberculocidal, fungicidal, virucidal, and sporicidal. However, 0.05% iodophor and 5.25% phenol have a broad-spectrum antimicrobial activity except for sporicidal.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of dimensional accuracy for different complete edentulous impressions immersed in different disinfectant solutions

Ismail¹,

Mahross²,

Shikho³

2017

Eur J Dent

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Objective:The aim of this study was to evaluate the effects of two different disinfectant solutions’ immersion on the dimensional accuracy of different complete edentulous impressions.Materials and Methods:A specific custom-made metallic cast template was constructed and used for making both 120 alginate and zinc oxide eugenol (ZOE) paste impressions (60 for each). Disinfectants with 1% sodium hypochlorite and 2% glutaraldehyde were used for 10 and 60 min immersion of both impressions. After immersion time, the impressions were used for constructing 120 completely edentulous master stone models and divided into different groups according to the study. An electronic caliper was used for dimensional accuracy measurements of the casts. The data were collected and statistically analyzed according to the independent paired sample t-test at statistically significant level P < 0 05. One-way ANOVA test was used to compare between significant different groups.Results:There is no statistically significant difference in dimensional accuracy of alginate and ZOE paste impressions as disinfection with 1% sodium hypochlorite and 2% glutaraldehyde for 10 min and ZOE paste impressions for 60 min, where there is statistically significant difference in alginate impressions dimensional accuracy as disinfection with 1% sodium hypochlorite and 2% glutaraldehyde for 60 min.Conclusions:Possibility of ZOE impressions paste disinfected with 1% sodium hypochlorite and 2% glutaraldehyde for 10 or 60 min, not affecting on dimensional stability, while alginate impressions, only 10 min immersion in disinfectant not affecting the dimensional stability.

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Antibacterial and antifungal properties of polyether impression materials

Cited by 6 publications

References 17 publications

Effect of mixing techniques on bacterial attachment and disinfection time of polyether impression material

Effect of mixing techniques on bacterial attachment and disinfection time of polyether impression material

Antimicrobial activity of disinfectant agents incorporated into type IV dental stone

Evaluation of dimensional accuracy for different complete edentulous impressions immersed in different disinfectant solutions

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