An important finding of the present study is that H 2 S levels also decreased in the placebo group, from 180.00 ppb at baseline to 137.00 ppb at follow-up, representing a reduction of approximately 24%; however, this decrease did not reach statistical significance.
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The Effect of <i>Cotinus coggygria</i> Mouthwash on Halitosis and Oral Hygiene in Orthodontic Patients: A Randomized Clinical Trial.
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