Efficacy of the Disclosing Plaque Agent as a Guide to Remove the Oral Biofilm in Orthodontic Patients.

It is more difficult to perform excellent professional oral hygiene in patients wearing orthodontic appliances. The hypothesis of the present randomized controlled trial is that the application of plaque disclosing agent allows better biofilm removal. To test this hypothesis, the patients, upon initial evaluation, will be divided in 2 study groups: * CONTROL GROUP will receive professional oral hygiene without disclosing agent * TEST GROUP will receive professional oral hygiene guided by plaque disclosing agent At the end of the professional oral hygiene session, the disclosing agent is re-applied in all patients and the percentage of residual plaque area is calculated though image software analysis (ImageJ).