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Procedure for semiquantitative analysis for presence of VSC.
Notes: Sulcus swab with a small sponge from the patient immersed in reagent mixture causes a change in color to yellow in the presence of sulfurous compounds produced as bacterial degradation products. The changed color can be classified based on six grading levels (0–5) for semiquantitative determination of VSCI.
Abbreviations: VSC, volatile sulfur compounds; VSCI, volatile sulfur compound indicator.
