Final answer:
CPR certification is typically required when renewing a dental or dental hygiene license to ensure dental professionals are trained in emergency lifesaving techniques.
Step-by-step explanation:
When renewing a dental or dental hygiene license, CPR certification is typically required. The regulation regarding CPR certification may vary depending on the specific dental board or licensing agency in each state. However, in general, dental professionals are required to maintain a valid CPR certification to ensure they are trained in emergency lifesaving techniques and can respond effectively in case of a medical emergency.