There are several synonyms for the term "dental hygienist." One commonly used synonym is "oral hygienist," as both terms refer to professionals who specialize in the maintenance of oral health. Another synonym is "dental therapist," which is often used in the UK and other parts of Europe to describe professionals who perform a broader range of clinical procedures, including fillings and extractions. "Dental nurse" is another synonym, although this term may be used more frequently in countries like the UK and Australia where dental nurses play a more significant role in the day-to-day operations of dental clinics. Finally, "dental assistant" is another term that is sometimes used interchangeably with "dental hygienist," although the two roles do have some distinct differences.