Is there such a thing as when dentist does procedure on minor without first consulting the parent?

Generally, a dentist should not perform a procedure on a minor without first consulting with the parent or guardian. The dentist has a duty to obtain informed consent from the parent or guardian before providing treatment to a minor. Informed consent means that the dentist must provide the parent or guardian with information about the proposed treatment, including the risks and benefits, and obtain the parent or guardian's authorization to proceed.

However, there may be certain exceptions to this rule, depending on the specific circumstances and laws in the relevant jurisdiction. For example, in some cases, a dentist may be authorized to provide emergency treatment to a minor without first consulting with the parent or guardian if the minor's health or safety is at risk. It is always best to consult with a local attorney or dental association to get the most up-to-date and accurate information on the requirements for obtaining consent for dental procedures on minors.