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Comparing the Efficacy of Commercially Available Insecticide and Dimeticone based Solutions on Head Lice, Pediculus capitis: in vitro Trials.

Abstract

OBJECTIVE

Head lice infestation is a public health and social problem for almost all countries worldwide. For its treatment, insecticide and dimeticone-based solutions are currently available in the markets in many countries. We aimed to compare the efficacy of commercially available anti-head lice shampoos containing insecticide and physically effective products with different percentages of dimeticone using an in vitro technique.

METHODS

Head lice specimens were collected from primary school children using special plastic and metal combs. Anti-head lice products were commercially purchased and used directly. The specimens were placed one by one in 5-cm Petri dishes containing a slightly wet filter paper and were kept in a plastic cage at 28±2°C and 50%±20% relative humidity. A standardized protocol was used for testing all the products, and mortality data were obtained after 24 h. Two control tests were performed with each batch of trials. For each product and control, 10-20 head lice specimens were used, and the results were statistically analyzed.

RESULTS

Our study demonstrated that among all the tested products, two products containing mineral oils [5.5% dimeticone & silicone (patented product) and dimeticone (no percentage mentioned in the prospectus) & cyclopentasiloxane] were found to be more effective for killing head lice in vitro.

CONCLUSION

Physically effective products can be repetitively used because they are non-toxic and resistance to them is not expected. To control the infestation at a public level, the use of these products needs to be encouraged with respect to their cost price.

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  • Authors+Show Affiliations

    ,

    Department of Parasitology, Celal Bayar University Faculty of Medicine, Manisa, Turkey. yusuf.ozbel@ege.edu.tr.

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    Source

    MeSH

    Animals
    Child
    Dimethylpolysiloxanes
    Female
    Hair Preparations
    Humans
    Insecticides
    Lice Infestations
    Male
    Pediculus
    Schools
    Silicones
    Single-Blind Method

    Pub Type(s)

    Comparative Study
    Journal Article

    Language

    eng

    PubMed ID

    26809918