Which ethical principle refers to the duty to tell the truth to patients?

Veracity is the ethical principle referring to truthfulness and honesty in the dentist-patient relationship. It obliges the clinician to provide accurate information about diagnoses, treatment options, prognoses, and fees. Non-maleficence means 'do no harm.' Beneficence means acting in the patient's best interest. Justice refers to fair and equitable distribution of dental care and resources.