• Cephalalgia · Oct 2020

    Observational Study

    Reliability of orofacial quantitative sensory testing for pleasantness and unpleasantness.

    • Pankaj Taneja, Camilla Krause-Hirsch, Stine Laursen, Caroline Juul Sørensen, Håkan Olausson, Peter Svensson, and Lene Baad-Hansen.
    • Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark.
    • Cephalalgia. 2020 Oct 1; 40 (11): 1191-1201.

    BackgroundQuantitative sensory testing protocols for perceptions of pleasantness and unpleasantness based on the German Research Network on Neuropathic Pain protocol were recently introduced. However, there are no reliability studies yet published.AimTo evaluate the intra-examiner (test-retest) and inter-examiner reliability for orofacial pleasantness and unpleasantness quantitative sensory testing protocols.MethodsSixteen healthy participants from Aarhus University (11 women and five men, mean age 24, range 21-26 years) contributed. Two examiners were trained in performing the entire quantitative sensory testing protocols for pleasantness and unpleasantness, which included the additional dynamic tactile stimulation test using a goat-hair brush. Each participant underwent examination of both protocols by each examiner (inter-examiner reliability) on day 1. They returned at least 8 days following the testing to be re-examined by one examiner (intra-examiner reliability). All testing was performed on the skin of the right mandibular mental region. The intraclass correlation (ICC) was used to determine reliability.ResultsFor the protocol investigating pleasantness, the majority of parameters had good to excellent intra-examiner (11/14: Intraclass correlation 0.67-0.87) and inter-examiner (13/14: Intraclass correlation 0.62-0.96) reliabilities. Similarly, the protocol investigating unpleasantness had good to excellent intra-examiner (intraclass correlation 0.63-0.99) and inter-examiner (intraclass correlation 0.65-0.98) reliabilities for most (13/15) of the parameters.ConclusionIntra and inter-examiner reliabilities in the majority of quantitative sensory testing parameters (apart from the summation ratio) investigating pleasantness and unpleasantness are acceptable when assessing somatosensory function of the orofacial region.Trial registration: NA.

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