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Research Article Open access CC BY 4.0

Determination of Minimum Inhibitory Concentration (MIC) of a PolyHexamethylene Biguanide (PHMB) Solution: A Potential Root Canal Irrigant

Chandki Rita, Vineeta Nikhil, Sai Kalyan Surapaneni

Annual Research & Review in Biology · pp. 1–7 · Published 29 Jul 2017

10.9734/ARRB/2017/34141

Abstract

Background: A polymeric biguanide ‘PolyHexaMethylene Biguanide’ (PHMB) was evaluated for its Minimal Inhibitory Concentration (MIC) against ATCC reference laboratory strain of Enterococcus faecalis (E. faecalis). Methods: The MIC was determined using criteria’s laid down in DIN 58940-7 and 58940-8 and the corresponding supplementary sheets. Serial dilutions of PHMB were tested against E. faecalis in 96-well microtitre plates and MIC was read as the minimal concentration that allowed no visible growth. Results: The MIC for PHMB against tested organism was found to be 2 gm/ L (0.2%). Conclusion: Lower MIC value (2 gm/ L (0.2%)) of PHMB solution against E. faecalis is an indicator of its higher potency against the said microorganism and paves way to further research in its potential use as a root canal irrigant.

E. faecalis Minimum Inhibitory Concentration (MIC) Polyhexamethylene Biguanide (PHMB) Polyhexanide Root canal irrigant.

Cited by 4

Irrigation in Endodontics: Polyhexanide Is a Promising Antibacterial Polymer in Root Canal Treatment

Z. Khabadze, Yu. A. Generalova, A. Kulikova · Dental journal · 2023

Polyhexanide as a new antiseptic composition for a dentist

Z. Khabadze, D. Nazarova, A. Kulikova · Endodontics Today · 2021

The effect of the irrigation solutions on dentin organic components: Pilot study

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