Final answer:
Dental professionals are usually required to wear name tags and display their licenses as part of health regulations and ethics for professionalism and patient safety.
Step-by-step explanation:
The question of whether it is mandatory for a dental professional to wear a name tag or display his or her license pertains to health regulations and ethics. Requirements for dental professionals can vary by region; however, in many places, there are regulations in place that mandate dental professionals to wear name tags and display their licenses in the practice. This is to ensure transparency and to give patients the ability to identify the credentials of their healthcare providers. It is part of a broader commitment to professionalism and patient safety.