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. 2014 Jun;44(2):149-54.
doi: 10.5624/isd.2014.44.2.149. Epub 2014 Jun 11.

The effectiveness of a pre-procedural mouthrinse in reducing bacteria on radiographic phosphor plates

Allison Hunter  1 , Sajitha Kalathingal  1 , Michael Shrout  2 , Kevin Plummer  2 , Stephen Looney  3
Affiliations

The effectiveness of a pre-procedural mouthrinse in reducing bacteria on radiographic phosphor plates

Allison Hunter et al. Imaging Sci Dent. 2014 Jun.

Abstract

Purpose: This study assessed the effectiveness of three antimicrobial mouthrinses in reducing microbial growth on photostimulable phosphor (PSP) plates.

Materials and methods: Prior to performing a full-mouth radiographic survey (FMX), subjects were asked to rinse with one of the three test rinses (Listerine®, Decapinol®, or chlorhexidine oral rinse 0.12%) or to refrain from rinsing. Four PSP plates were sampled from each FMX through collection into sterile containers upon exiting the scanner. Flame-sterilized forceps were used to transfer the PSP plates onto blood agar plates (5% sheep blood agar). The blood agar plates were incubated at 37℃ for up to 72 h. An environmental control blood agar plate was incubated with each batch. Additionally, for control, 25 gas-sterilized PSP plates were plated onto blood agar and analyzed.

Results: The mean number of bacterial colonies per plate was the lowest in the chlorhexidine group, followed by the Decapinol, Listerine, and the no rinse negative control groups. Only the chlorhexidine and Listerine groups were significantly different (p=0.005). No growth was observed for the 25 gas-sterilized control plates or the environmental control blood agar plates.

Conclusion: The mean number of bacterial colonies was the lowest in the chlorhexidine group, followed by the Decapinol, Listerine, and the no rinse groups. Nonetheless, a statistically significant difference was found only in the case of Listerine. Additional research is needed to test whether a higher concentration (0.2%) or longer exposure period (two consecutive 30 s rinse periods) would be helpful in reducing PSP plate contamination further with chlorhexidine.

Keywords: Chlorhexidine; Delmopinol; Diagnostic Imaging; Listerine.

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Figures

Fig. 1
Fig. 1
Bacterial growth is seen on blood agar plates. A. Listerine test group, B. Decapinol test group, C. Chlorhexidine test group.
See this image and copyright information in PMC

References

    1. Kitagawa H, Farman AG, Scheetz JP, Brown WP, Lewis J, Benefiel M, et al. Comparison of three intra-oral storage phosphor systems using subjective image quality. Dentomaxillofac Radiol. 2000;29:272–276. - PubMed
    1. Stamatakis HC, Welander U, McDavid WD. Physical properties of a photostimulable phosphor system for intra-oral radiography. Dentomaxillofac Radiol. 2000;29:28–34. - PubMed
    1. Matzen LH, Christensen J, Wenzel A. Patient discomfort and retakes in periapical examination of mandibular third molars using digital receptors and film. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009;107:566–572. - PubMed
    1. Farman AG, Farman TT. A comparison of 18 different x-ray detectors currently used in dentistry. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005;99:485–489. - PubMed
    1. Hayakawa Y, Farman AG, Kelly MS, Kuroyanagi K. Intraoral radiographic storage phosphor image mean pixel values and signal-to-noise ratio: effects of calibration. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1998;86:601–605. - PubMed