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PubMed1990

[Comparative study of the effects of a local antibiotic and a local antiseptic in emergency hand surgery].

An open randomised comparative study was conducted in patients presenting with a hand injury requiring a surgical operation, in order to compare the efficacy of topical application of rifamycin SV with that of iodinated polyvidone dermal solution, in terms of the quality and rate of healing evaluated by the clinician, 268 patients were included in the study and 223 of them participated in the analysis of the results. Analysis of the results demonstrated the following conclusions: signs of infection developed in 8 patients in the rifamycin SV group (7%) and in 20 patients in the iodinated polyvidone group (18.5%). This difference was significant (p = 0.011) in favour of rifamycin SV. The rate of healing was considered to be rapid in 10% of patients in the rifamycin SV group and in 4% of patients in the iodinated polyvidone group. It was considered to be slow in 14% of the subjects in the rifamycin SV group and in 21% of those in the iodinated polyvidone group. This difference was also significant in favour of the rifamycin SV group (p = 0.038). In terms of local tolerance, 32 patients equally distributed between the two treatment groups developed signs of cutaneous intolerance.

Administration, Topical↗
PubMed2001

In vitro effect of oral antiseptics on human immunodeficiency virus-1 and herpes simplex virus type 1.

AIM: The antiviral effectiveness of widely used commercial mouthrinses has not been well studied. A project was undertaken to evaluate and compare the in vitro antiviral effectiveness of essential oil-containing mouthrinses (LA & TLA) and chlorhexidine mouthrinses (PX & CHX) on 2 different enveloped viruses, human immunodeficiency virus (HIV-1) and Herpes simplex virus (HSV-1) McIntyre strain. METHOD: HIV-1(89.6) (1x10(5)/ml) and HSV-1 (1x10(6)/ml) in RPMI-1640 medium were treated with two commercially available forms of LA & TLA (tartar control LA), and 2 formulations of chlorhexidine [(PX), 0.12% chlorhexidine & (CHX), 0.2% chlorhexidine] for 30 sec. The antiviral effect was estimated by inhibition of the syncytia formation or the cytopathic effect (CPE) for HIV-1 on MT-2 cells and by inhibition of the plaque formation for HSV-1 on Vero cell monolayers. RESULTS: Undiluted LA, TLA, PX and CHX completely inhibited both HIV-189.6 and HSV-1 McIntyre strain. PX and CHX inhibited HIV-1 up to 1:4 dilution, whereas, LA and TLA inhibited HSV-1 up to 1:2 dilution. The antiviral effects of LA and TLA were found to be similar and also the antiviral effect of PX and CHX were also found to be comparable. CONCLUSIONS: The methods used in this investigation allow easy and reproducible evaluations of antiviral efficacy. The anti-HIV-1 and anti-HSV-1 effects of LA, TLA, PX and CHX as evidenced in our in vitro study suggest that we should investigate potential in vivo effects during the use of essential oil-containing or chlorhexidine containing products when used by patients as mouthrinses. If the clinical studies confirm the in vitro data, pre-procedural use by clinicians may be beneficial in reducing viral contamination of bio-aerosols during the delivery of dental care.

Animals↗
PubMedDate not supplied

Evaluation of a new antiseptic-containing alginate impression material.

A comparison was made of the disinfection achieved in impressions taken in Blueprint Asept alginate impression material and those taken in the plain brand of this material disinfected by immersion in 1% Hycolin solution for one minute. The plain Blueprint impression material without disinfection was used as a control. Impressions were taken of dies which had been contaminated with 0.75 ml of saliva from each of 20 volunteers. The surfaces of the impressions were used to inoculate Wilkins-Chalgren agar plates immediately and after 1 and 2 hours' storage of the impressions. The number of organisms recovered from the surface of the Blueprint Asept impressions was 1.5% of the control immediately after removal from the dies and complete disinfection was observed within one hour. In contrast, the number of organisms recovered from the surface of the impressions disinfected with 1% Hycolin solution was 30% of the control immediately after disinfection, and viable organisms could still be recovered after 2 hours' storage. Blueprint Asept impression material appears, therefore, to provide a high degree of disinfection when compared with the plain material treated with 1% Hycolin solution for one minute.

Adult↗
PubMed1998

In vitro studies of the effect of antiseptic-containing mouthwashes on the formation and viability of Streptococcus sanguis biofilms.

The aims of this study were to evaluate the growth of Streptococcus sanguis on hydroxyapatite, bovine enamel and polytetrafluoroethylene substrata in a constant depth film fermentor, and to determine the effects of three antimicrobial-containing mouthwashes on biofilm formation and bacterial viability on hydroxyapatite and enamel. There was little difference in the final cell density (5 x 10(4) cfu mm-2) of the Strep. sanguis biofilm on the three substrata. When hydroxyapatite-grown biofilms were exposed to the mouthwashes for 1 min, the one containing triclosan (T) proved the most effective. The chlorhexidine-containing mouthwash (CX) also achieved significant kills. The T-containing mouthwash was the most effective at killing biofilms grown on enamel. Pre-treatment of hydroxyapatite with CX, cetylpyridium chloride (CPC) or T for 1 min resulted in undetectable biofilm formation after 8 h. After 8 h of growth, only biofilms grown on enamel discs pre-treated with CX showed a reduction in the number of viable organisms. In conclusion, the results of this study have shown that while growth of Strep. sanguis on hydroxyapatite and enamel were similar, the ability of antimicrobial agents to prevent the accumulation of viable bacteria depended on the nature of the substratum.

Animals↗