Final answer:
The Iowa administrative code 650, also known as the board rules, governs the practice of dentistry, but it also includes rules for other professionals in the field.
Step-by-step explanation:
The Iowa administrative code 650 is indeed known as the board rules and it governs the practice of dentistry. However, not everything in the code is the responsibility of the dentist.
The code outlines the regulations, requirements, and standards that dentists must adhere to in their practice, but it also includes rules and responsibilities for dental hygienists, dental assistants, and dental laboratories, among others.