What are negative keywords for dental?
They are the searches that look close enough to your keywords for Google to match them, but come from people who will never buy. Dental clicks run $8 to $30 in most metros and the query pool around them is crowded with people who will never sit in a chair: hygiene students, job seekers, product shoppers, and people trying to fix a tooth at the kitchen sink. Broad match makes it worse, because dental implants and dental implant assistant program look close enough to Google to be worth a test.