Answer :
Final answer:
Dental hygienists and licensed dental assistants are typically not legally authorized to take impressions and bite registrations for the final creation of fixed and removable prostheses, a task usually reserved for dentists or prosthodontists to ensure accuracy and proper fit.
Explanation:
The practice of dental hygienists and licensed dental assistants is regulated by specific legal scopes within different regions or countries. These legal scopes determine which dental procedures these professionals are authorized to perform. The question refers to the prohibition for dental hygienists and licensed dental assistants to take impressions and bite registrations for the creation of fixed and removable prostheses.
Impressions and bite registrations are critical for the accurate fitting of dental prostheses, such as crowns, bridges, and dentures. The term fixed prosthesis refers to non-removable dental restorations that are permanently affixed to natural teeth or implants. Examples include crowns and bridges. Removable prostheses include items like dentures, which can be taken out and put back into the mouth by the patient.
