Which type of consent is based on a patient's actions without explicit discussion?

• A. Implied consent
• B. Expressed consent
• C. Informed consent
• D. Emergency consent

Answer: (A)

Consent types in dental care include ones that come from explicit conversation and ones that are inferred from behavior. Implied consent means the patient’s actions show agreement to treatment without a formal discussion or written authorization. For example, when a patient arrives for a procedure and proceeds with the recommended care after a brief explanation, the clinician can reasonably proceed because the patient’s actions indicate consent even though there wasn’t a detailed discussion. This differs from expressed consent, which is specifically given—either orally or in writing. Informed consent adds the requirement that the patient understands the risks, benefits, and alternatives through a thorough discussion before agreeing. Emergency consent covers situations where immediate treatment is needed and the patient is unable to consent, so treatment proceeds under the assumption of agreement to prevent harm. Therefore, the scenario described aligns with implied consent, since it relies on the patient’s actions rather than explicit discussions.