What Does a Dental Assistant Do? Duties and Training

Walk into almost any dental office and you will meet a dental assistant. They greet patients, prepare the room, hand the dentist the right instrument and keep records up to date. Many patients never notice how much of the visit depends on them.

So, what does a dental assistant do each day? In this guide, you will learn the main duties of the role, where dental assistants work and how they fit into the dental team. You will also learn about training and certification options, official data on pay and job growth and simple ways to explore the career. Many pre-dental students start here, because assisting offers a close view of how dental care works.

What does a dental assistant do? Core duties

According to the U.S. Bureau of Labor Statistics (BLS), dental assistants typically:

• Make sure patients are comfortable in the dental chair
• Prepare patients and the work area for treatment
• Sterilize dental instruments
• Hand instruments to dentists during procedures
• Keep patients' mouths dry using suction hoses and other equipment
• Process x-rays and complete lab tasks under the direction of a dentist
• Keep records of dental treatments
• Schedule patient appointments
• Teach patients about oral hygiene

Each state sets the scope of practice for dental assistants. That means the tasks an assistant may perform can differ from one state to another.

A typical day on the dental team

A dental assistant's day often starts before the first patient arrives. They set up rooms, check supplies and review the schedule. During appointments, they work side by side with the dentist. Between patients, they clean and sterilize instruments and update records. Some assistants also help at the front desk with scheduling and billing. Good communication matters at every step. Assistants often explain what will happen next, answer simple questions and help nervous patients feel at ease. To see what dentists do during those appointments, read our overview of the most common dental procedures.

Training, certification and where dental assistants work

BLS lists the typical entry-level education for dental assistants as a postsecondary nondegree award, such as a certificate or diploma. Some assistants learn their duties through on-the-job training instead.

Many states do not require a license for entry-level roles. Some states require registration, licensing or certification for certain tasks or for advancement. One widely recognized credential is the Certified Dental Assistant (CDA) certification from the Dental Assisting National Board (DANB). The CDA exam combines three component exams. DANB offers several eligibility pathways, such as graduating from an accredited dental assisting program or completing 3,500 hours of approved work experience.

Almost all dental assistants work in dentists' offices, and most work full time. Some work evenings or weekends. The role can also be a step toward other careers. Some assistants later study dental hygiene, and some pre-dental students work as assistants to gain experience before dental school.

Pay and job outlook

BLS reports that the median annual wage for dental assistants was $48,070 in May 2025. It projects employment growth of 7 percent from 2025 to 2035, much faster than the average for all occupations.

How to explore dental assisting

If you are curious about the role, start small:

1. Shadow a dental assistant. Ask a local office whether you can observe for a day.
2. Talk with assistants and program staff. Ask about training options and what the job is really like.
3. Check your state's rules. Learn which tasks require registration or certification.
4. Look for supervised learning experiences. Some programs teach assisting skills in classroom and lab settings first.

Our guide on becoming a dental assistant explains training paths in more detail. You can also learn about dental assistant training options that do not require a license to start.

A dental service learning trip is another way to see the dental team in action. On Smiles Movement trips, students shadow local dental professionals at mobile clinics and help with oral health education for children in partner communities.

See the dental team at work

Dental assistants help every appointment run smoothly. If you want to observe how dental teams work together before you choose your path, Smiles Movement can help. Fill out the form or download our brochure to get more information about upcoming programs and trip dates.

Frequently asked questions about what a dental assistant does

What is the main job of a dental assistant?

Dental assistants support dentists during procedures, prepare patients and rooms, sterilize instruments, keep records and help with scheduling and patient education.

Do you need a license to be a dental assistant?

It depends on the state. Many states do not require a license for entry-level roles, while some require registration, licensing or certification for certain tasks.

How much do dental assistants make?

BLS reports a median annual wage of $48,070 for dental assistants in May 2025.