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Table 4 Results from Mann–Whitney Test for Plaque—12 months

From: Long-term clinical and bacterial effects of xylitol on patients with fixed orthodontic appliances

Statistics Gum vs mint Gum vs control Mint vs control
Remarks Mint is higher No difference Mint is higher
Z −2.429 −0.16 −2.508
P value 0.015 0.873 0.012