When should a clinician change the needle during a procedure?

The practice of changing the needle after every patient is rooted in maintaining the highest standards of safety and hygiene during dental procedures. Each time a needle is used, it can become dull or contaminated due to contact with tissues, blood, or other substances. By changing the needle for each patient, the clinician minimizes the risk of cross-contamination and infection.

This approach not only ensures patient safety but also aids in ensuring effective anesthesia delivery, as a sharp needle will provide a smoother injection experience compared to a dull one, which can lead to increased discomfort for the patient. While in some scenarios, a clinician might change the needle due to visible damage or during specific protocols, the universally accepted best practice is to use a fresh needle for every patient to uphold infection control measures and ensure optimal procedural outcomes.