Evaluation of the Effect of MTAD on Expression of Enterococcus faecalis Virulence Factors Considering the Role of Different Obturating Materials

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BOLHARI BEHNAM; BAHADOR ABBAS; KHOSHKHOUNEJAD MEHRFAM; SOBHI AFSHAR MAHSA; Moghaddaszadeh Mohammad

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Journal Paper

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Journal: Frontiers in Dentistry Year:2018 | Volume:15 | Issue:6 Page(s): 382-392

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Title

Evaluation of the Effect of MTAD on Expression of Enterococcus faecalis Virulence Factors Considering the Role of Different Obturating Materials

Author(s)

Keywords

Enterococcus faecalis

Gutta-Percha

MTAD

Resilon Sealer

Virulence Factors

Abstract

Objectives: The aim of this study was to determine the effect of MTAD on the expression of Virulence Factors of Enterococcus faecalis (E. faecalis) considering the role of Gutta-Percha/AH26 or Resilon/RealSeal SE as root canal obturating materials. Materials and Methods: One-hundred and forty-four single-rooted human teeth were instrumented to a standardized apical size. Root canals were infected by E. faecalis (ATCC 29212). Ninety teeth were irrigated with MTAD and randomly divided into three groups. In two groups, root canals were obturated by either Gutta-Percha/AH26 or Resilon/RealSeal SE. Root canals were kept unobturated in the third group. The remaining 54 teeth received no final irrigation. All groups were then subdivided into three timepoint subgroups in which dentin powder was obtained from each sample to determine the expression of specific Virulence Factors of E. faecalis (efa, esp, gel, fsr) using real-time reverse transcription polymerase chain reaction (RT-PCR). Statistical analysis was performed by one-way analysis of variance (ANOVA) and Tukey’ s post-hoc test. The statistical power was set at P-value ≤ 0. 05. Results: MTAD was effective against the expression of most of the tested Virulence Factors, and Gutta-Percha/AH26 increased the antibacterial efficacy of MTAD. Conclusions: MTAD could inhibit the expression of some known Virulence Factors of E. faecalis at the majority of tested timepoints. This may partly explain some of the mechanisms of antimicrobial efficacy of MTAD against this resistant microorganism which is known as one of the main causes of failure of root canal treatment.

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APA: Copy

BOLHARI, BEHNAM, BAHADOR, ABBAS, KHOSHKHOUNEJAD, MEHRFAM, SOBHI AFSHAR, MAHSA, & Moghaddaszadeh, Mohammad. (2018). Evaluation of the Effect of MTAD on Expression of Enterococcus faecalis Virulence Factors Considering the Role of Different Obturating Materials. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), 15(6), 382-392. SID. https://sid.ir/paper/298123/en

Vancouver: Copy

BOLHARI BEHNAM, BAHADOR ABBAS, KHOSHKHOUNEJAD MEHRFAM, SOBHI AFSHAR MAHSA, Moghaddaszadeh Mohammad. Evaluation of the Effect of MTAD on Expression of Enterococcus faecalis Virulence Factors Considering the Role of Different Obturating Materials. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2018;15(6):382-392. Available from: https://sid.ir/paper/298123/en

IEEE: Copy

BEHNAM BOLHARI, ABBAS BAHADOR, MEHRFAM KHOSHKHOUNEJAD, MAHSA SOBHI AFSHAR, and Mohammad Moghaddaszadeh, “Evaluation of the Effect of MTAD on Expression of Enterococcus faecalis Virulence Factors Considering the Role of Different Obturating Materials,” FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 15, no. 6, pp. 382–392, 2018, [Online]. Available: https://sid.ir/paper/298123/en

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