Journal of Dental Hygiene Science : eISSN 2233-7679

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Fig. 1.

Classification of Staphylococcus epidermidis contamination on hand. S. epidermidis contamination based on hand plate criteria, hand contamination was classified into (A) safe 0 colony-forming units (CFU), (B) low 1∼9 CFU, (C) middle 10∼99 CFU, and (D) high >100 CFU groups. Hand contamination groups was classified into (A) safe-no. 4, 5, 7, (B) low-no. 3, 9, 10, 11, 14, 20, (C) middle-no. 1, 2, 6, 13, 15, 16, 19, (D) high-no. 8, 12, 17, 18.

J Dent Hyg Sci 2017;17:472-80 https://doi.org/10.17135/jdhs.2017.17.6.472
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