Which of the following is NOT a medical procedure?

The correct answer is the option that refers to 'policy renewal,' as it pertains to administrative or business operations rather than a medical procedure. A root canal, tooth extraction, and teeth cleaning are all dental procedures that involve direct treatment of patients' dental health by a licensed professional.

A root canal is a common endodontic procedure aimed at treating infection or damage in the tooth's pulp. Tooth extraction involves removing a tooth from its socket and is often performed due to decay or periodontal disease. Teeth cleaning, also known as prophylaxis, is a preventive procedure performed by dental hygienists or dentists to remove plaque and tartar from the teeth, ensuring oral health.

In contrast, policy renewal does not involve any physical medical or dental treatments; rather, it relates to the process of renewing insurance coverage for health or dental services. Therefore, it clearly falls outside the definition of a medical procedure.