What is rdh?

It seems like you might be referring to "RDH," but without additional context, it's difficult to provide specific information. "RDH" could refer to several things, such as:

  1. Registered Dental Hygienist (RDH): A professional designation for dental hygienists who have completed the necessary education and licensure requirements. Dental hygienists focus on preventive oral health, typically working alongside dentists to provide patient care, including teeth cleaning, examinations, and education on maintaining oral hygiene.

  2. RDH in technology: In a tech context, RDH might stand for something like Remote Desktop Host, although this isn't a commonly used acronym. It could also be a company's name or a product.

  3. RDH in transportation: In some regions or countries, RDH might stand for a route, station, or service code in public transportation systems.

If you have a specific context or industry in mind, please provide more details for a more accurate response.