A dental therapist is a member of the dental team who provides preventative and restorative dental We remove tooth decay, fill cavities, and repair fractured teeth We also diagnose and treat problems with patients' teeth, gums, and related parts of the mouth We provide advice and instruction on taking care of the teeth and gums and on diet choices that affect oral health We also do cosmetic dentistry Oral hygiene is the practice of keeping one's mouth clean and free of disease and other problems by regular brushing of the teeth and cleaning between the teeth care, usually for children and adolescents A dental therapist is a member of the dental team who provides preventative and restorative dental care, usually for children.