Final answer:
Assessing the client's oral health status is the top priority when planning dental hygiene education services.
Step-by-step explanation:
When planning dental hygiene education services for a client, the top priority should be assessing the client's oral health status. This involves evaluating the overall condition of the client's teeth and gums, identifying any existing problems or diseases, and determining the specific needs and challenges they may have. By thoroughly understanding the client's oral health status, you can then prioritize and tailor the rest of the dental hygiene education plan accordingly.