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Year : 1997  |  Volume : 9  |  Issue : 1  |  Page : 50-56

Comparative evaluation of the antibacterial efficacy of calcium hydroxide pastes using four different vehicles

1 Assistant Professor, Department of Microbiology, Kasturba Medical College, Manipal, India
2 Professor, Department of Endodontics College of Dental Surgery, Manipal, India
3 Professor and Head, Department of Endodontics College of Dental Surgery, Manipal, India

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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0970-7212.347431

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Clinicians use vehicles like distilled water, normal saline, camphorated mono-chloro-phenol or local anesthetic solution to constitute non setting calcium hydroxide paste at the chair side for intra canal application. The desired therapeutic effect of such a paste can be influenced by the vehicle used. The present study attempts to evaluate the antibacterial activity of calcium hydroxide pastes prepared using two chemicals, namely propylene glycol and glycerine which are being recommended as vehicles for routine use. The antibacterial activity of these pastes were tested against five anaerobic organisms that can commonly occur in the infected root canal, and compared with that of pastes prepared from two commonly used vehicles, distilled water and camphorated mono-chloro-phenol. The results of the study found that the experimental vehicles did not adversely effect the antibacterial qualities, but appeared to enhance and sustain it for a longer period of time. Propylene glycol being a biologically acceptable vehicle can be used preferentially over glycerine as a vehicle for routine use.

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