Careers
Dental Assistant vs. Dental Hygienist: Which Career Fits You?
How dental assistants and dental hygienists differ in schooling, licensing, daily work and pay, with BLS figures, plus the Colorado bridge from one to the other.
Dental assistants and dental hygienists work side by side, wear similar scrubs, and patients often mix them up. They are very different jobs, though, with different training, legal status, daily work and pay. If you're choosing between them, here's how they compare.
The short version
| Dental assistant | Dental hygienist | |
|---|---|---|
| Typical training | A few months to a year (short programs or college certificates), or on-the-job | Associate degree in dental hygiene (BLS says programs typically take about 3 years) |
| License in Colorado | None; the Dental Board regulates tasks | Required |
| Main work | Supports the dentist chairside, x-rays, sterilization, patient care | Cleanings, periodontal assessment, preventive care, patient education |
| Median pay (BLS, May 2025) | $48,070/yr | $98,100/yr |
| Projected growth, 2025–35 | 7% | 8% |
What each one actually does
Assistants keep procedures running. They work alongside the dentist during fillings, crowns, extractions and exams: passing instruments, suctioning, taking x-rays, mixing materials, and handling infection control and room turnover. Their day follows the dentist's schedule. Here's what that day looks like.
Hygienists run their own schedule of patients. They clean teeth, remove tartar above and below the gumline, assess gum health, take x-rays, apply preventive treatments and teach patients about home care. The dentist usually stops in for a quick exam at the end of the visit.
In short: an assistant helps the dentist do the dentist's work, and a hygienist does their own clinical work.
Training and licensing
This is the biggest difference.
A dental assistant in Colorado can start working after on-the-job training, although most employers prefer someone who has already trained. Colorado doesn't license assistants. What matters legally is the specific task. X-rays, for example, require approved radiography training. Many people finish a short program in 8 to 13 weeks and are working within a few months. Compare Colorado programs.
A dental hygienist must graduate from an accredited dental hygiene program, pass written and clinical board exams, and hold a state license, which requires continuing education to keep. Hygiene programs usually have prerequisites (biology, chemistry, anatomy) and competitive admission. From deciding to getting licensed often takes three years or more.
Colorado's hygienists also have unusual independence. Colorado lets licensed hygienists practice without a dentist's supervision in some settings. The details are in the rules published by the Colorado Dental Board.
Pay and cost
Hygienists earn roughly twice what assistants do, and that reflects the extra training, the license and the independent patient schedule. Hygiene school also costs far more and takes years longer, usually without much chance to work full time alongside it.
Assisting pays sooner. A Colorado assistant program costs about $3,250 to $5,995 for a short program (cost breakdown), and you can be earning within a few months. For Colorado-specific pay, see our salary guide.
Using assisting as a bridge
Many hygienists started as assistants, and the path makes sense:
- You find out whether you like working in mouths before paying for a degree.
- You earn money while finishing hygiene prerequisites at a community college.
- You get to know hygienists and dentists who can write strong recommendations.
- You arrive at hygiene school already comfortable with instruments, infection control and patients.
If you plan to go this route, keep a record of your hours and duties from the start, and look at hygiene program prerequisites early so you can take them part time while you work.
Which should you choose?
Choose assisting if you want to be working in healthcare within months, prefer hands-on teamwork, or want to try the field before committing to a degree.
Choose hygiene if you're ready for a science-heavy, multi-year program, want your own patient schedule, and are aiming for the higher pay ceiling.
Choosing assisting first doesn't close off hygiene later. If you want to start on the assisting side, the program match quiz shows which Colorado programs fit your schedule and budget.
Checked September 30, 2026. Pay and growth figures from the BLS Occupational Outlook Handbook.
FAQ
Do dental hygienists make more than dental assistants?
Yes, by a wide margin. The BLS median for dental hygienists was $98,100 in May 2025, compared with $48,070 for dental assistants. Hygienists also need far more schooling and a state license.
Can a dental assistant become a hygienist?
Yes, but there's no shortcut. You need to complete an accredited dental hygiene program, pass national and clinical exams, and get licensed. Assisting experience helps with admission and the coursework.
Do dental assistants need a license in Colorado?
No. Colorado doesn't license dental assistants; the Dental Board regulates which tasks they may do. Dental hygienists, by contrast, must be licensed.