Dentist assistant Duties and responsibilities: One of their responsibilities is that they need to make the patient comfortable and ready for their treatment that the dentist is going to give her or him. They also have to prepare the area and materials that they are going to use for the treatment. Help the dentist by passing the materials and keeping the patient mouth dry in order for they could do there job.They also work with the patient's billing and payment and do x rays. Salary: The dentist get pay 16 something a hour. They make $34.740 a year. It also how much experience they have at that job and how they work. Education: They should take courses in biology,chemistry,and anatomy. They should also have their diploma and community college for 1 year. They also have to study and pass all there courses that have to do with health to know what they're doing and they have to keep on going to sc...