Brazilian Clinical Trials Registry, affiliated with the World Health Organization's International Clinical Trial Registry Platform: U1111-1152-2671.

Oral application of a 0.12% solution of chlorhexidine does not prevent respiratory tract infections among ICU patients, although it may retard their onset.

Brazilian Clinical Trials Registry, affiliated with the World Health Organization's International Clinical Trial Registry Platform: U1111-1152-2671.

From an interprofessional perspective, our results support the idea of including dentists in the ICU team to improve oral health in critical patients and effectively prevent respiratory tract infections, in addition to the improvement achievable by applying chlorhexidine alone.

Dentists evaluated do not properly obey the norms for infection control during their clinical activities, with consequent risks for their own and their patients' health. Measures must be adopted by class institutions, universities, public agencies, and especially by these professionals in order to reverse this situation.

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