11 research outputs found

    3D face scan by using scanning APP.

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    Participant taking 3D face scan with scanning APP installed on a smartphone. Whole process cost less than 1 minute.</p

    3D face scans acquired with face scanning APP and CAD of retainer.

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    Panel A shows anatomical facial landmarks used to determine border of retainer: A, rhinion; B, margo infraorbitalis; C, processus temporalis ossis zygomatici; D, vertical line at angulus oris plane; E, angulus oris. Panel B shows CAD of retainer merged on 3D face scan. Panel C shows CAD of retainer merged on 3D face scan with mask. CAD, computer aided design.</p

    Participant taking fit factor test.

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    Shown is fit testing situation for participant wearing surgical mask supplemented by retainer. The subjects’ favorite pattern is added to the upper left corner of the retainer.</p

    Characteristics of subjects.

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    Characteristics of subjects.</p

    Subjective ratings of discomfort in eight domains of 10 subjects.

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    M group: surgical masks without a retainer. MR, group of surgical masks with retainers. The participants were asked at 60, 80 and 100 min of the intermittent exercise how they perceived the comfort in the questionnaire. (DOCX)</p

    Scores of FF of surgical mask with and without retainer.

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    Scores of FF of surgical mask with and without retainer.</p

    Rating scale of subjective perceived discomfort.

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    Questionnaire of quantifying eight domains of comfort/discomfort of wearing a mask.</p

    Fit factor test data.

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    M group: surgical masks without a retainer. MR, group of surgical masks with retainers. iNB, initial normal breathing. DB, deep breathing. Head L/R, head movement from side to side. Head U/D, head movement up and down. fNB, final normal breathing. (DOCX)</p

    Subjective perceived discomfort.

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    Subjective perceived discomfort.</p

    The biometric information of the 10 participants.

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    The biometric information of the 10 participants’ based on the determined landmarks. (TIF)</p
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