What are the benefits of flossing?
Flossing cleans between teeth.
It removes plaque, which causes cavities.
Flossing prevents gum disease.
It is good to floss twice a day.
What is the dental assistant doing?
She is taking an X-ray of the patient's teeth.
X-rays show cavities.
X-rays produce radiation, so the woman is wearing a lead vest.
What is the dentist doing?
She is examining the patient's teeth and gums.
She is looking for cavities and receding gums.