At the BLS OEWS May 2025 median of $47.16 an hour, a dental hygienist working 24 hours a week earns about $58,856 a year, and 32 hours about $78,474, assuming 52 paid weeks.
Hourly, part-timers come out slightly ahead in the ADA's 2025 practice data — $50.00 an hour versus $48.80 for full-time.
The real part-time trade-off is benefits, where hours thresholds and employer size decide.
Short answer: annual pay at 24 and 32 hours
Part-time hygienist pay is the full-time hourly rate times fewer hours.
At the national median hygienist rate of $47.16 an hour (BLS OEWS, May 2025 — the release published May 15, 2026), 24 hours a week for 52 weeks works out to about $58,856 a year, and 32 hours to about $78,474.
Those are derived figures — median rate × hours × 52 weeks — and they assume you are paid every week.
Unpaid time off comes straight out of them.
The $98,100 national median you'll see quoted for hygienists is a different animal: an annualized number.
BLS builds its OEWS annual wages on a full-time, year-round schedule of 2,080 hours, so that median assumes 40 hours every week of the year.
Underneath it, the hourly distribution is what part-time math actually scales: the 10th percentile earned $74,880 annualized ($36.00 an hour), the 25th $83,570, the 75th $108,480 and the 90th $126,050 ($60.60 an hour).
Three adjustments before you budget from any of it.
BLS counts employees — self-employed hygienists and owners or partners in unincorporated practices sit outside these estimates.
The figures are straight-time gross pay: production bonuses and commissions are included, but overtime, year-end bonuses and profit-sharing are not.
And posted pay is a separate data set, with its own date and basis — offers in job listings, not wages reported to BLS.
DentistryHires listings data from October 6, 2026 showed employers posting a median of $52.50 an hour across 1,124 employers and 2,044 listings stating hourly pay, with the middle half of listings at $46.00 to $57.50.
Geography moves the rate too — the highest state medians in the BLS data were District of Columbia ($137,220), Alaska ($132,690), Washington ($131,160), California ($124,930) and Oregon ($122,080).
All annualized, so scale them by your hours.
For everything around the pay — licensure, work settings, career path — start from the dental hygienist career guide.
This page stays on the money.
Hourly rate vs full-time: is there a part-time discount?
Across occupations, BLS notes that full-time workers tend to earn higher hourly wages than part-time workers in the same job.
Dental hygiene ran the other way in the ADA Health Policy Institute's 2025 data: average hourly pay for all hygienists was $49.20 across dentists' practices, with full-time hygienists at $48.80 and part-time hygienists at $50.00.
In general practices specifically, part-timers averaged $49.40 an hour against $48.80 for full-time.
So in the most recent national practice data, part-time hygiene paid slightly more per hour, not less — a difference small enough that it tells you the rate itself isn't the part-time penalty.
How offices reach the rate they quote isn't answered by the sources behind this page, either: our research found no sourced figure for what share of hygienists are paid hourly versus daily versus on production, or which structure hygienists prefer — treat any such breakdown you find elsewhere as an estimate.
One classification note from federal pay law: hygienists who completed four academic years of pre-professional and professional study at an accredited college or university approved by the ADA's Commission on Accreditation generally meet the duties test for the learned professional exemption from overtime (29 CFR 541.301(e)(3)).
The exemption also requires payment on a salary basis — a condition hourly pay does not meet — so an hourly part-time job falls outside it.
Converting any hourly quote into an annual figure has its own traps; we do the working in our guide to hourly vs annual pay.
For this page, the short version: multiply the rate by your hours, then by the weeks you'll actually work.
Benefits eligibility thresholds: where part-time status bites
Per hour, part-time pay holds up.
Benefits are where the shorter schedule costs you, and the lines that decide it are mostly federal.
For the wider benefits picture — what dental employers put on the table, not just what the law requires — see our guide to dental job benefits.
Health coverage.
The ACA defines a full-time employee as one employed an average of at least 30 hours of service per week in a calendar month; 130 hours of service in a calendar month is treated as the monthly equivalent.
The ACA's employer mandate reaches only applicable large employers — those that averaged at least 50 full-time employees, including full-time equivalents, in the preceding calendar year.
Part-time hours roll up into that FTE count.
A practice under 50 FTEs isn't subject to the mandate at all; an employer over it is measured against its 30-hour-plus staff.
Paid time off.
Federal law does not require employers to pay for time not worked — vacations, sick leave and holidays are matters of agreement between employer and employee.
There is currently no federal requirement for paid sick leave either.
What federal law provides is unpaid: the FMLA's up to 12 weeks of leave for certain medical situations, at private employers with 50 or more employees for each working day in 20 or more calendar workweeks in the current or preceding year.
The employee has to qualify too: at least 12 months with the employer, at least 1,250 hours of service in the 12 months before the leave, and a worksite where the employer has 50 or more employees within 75 miles (29 CFR 825.110(a)).
Twenty-four hours a week for 52 weeks is 1,248 hours — just short of that line at a single employer.
Retirement.
If the practice sponsors a 401(k), the long-term part-time worker rule limits how long you can be excluded on service grounds: a plan may not require, as a condition of participation, service beyond the earlier of its normal eligibility period or two consecutive 12-month periods in each of which the employee completes at least 500 hours of service.
Five hundred hours is about 10 hours a week across a year — a 16- or 24-hour schedule clears it; lighter schedules may not.
The contribution caps are flat dollar limits, not shares of pay.
For 2026, the employee deferral limit is $24,500 in a 401(k) — with an $8,000 catch-up at 50 and older (up to $32,500 total) and an $11,250 catch-up at ages 60–63 — and $17,000 in a SIMPLE IRA, with catch-ups of $4,000 at 50+ and $5,250 at ages 60–63.
SIMPLE IRA plans are built for small businesses — generally 100 or fewer employees, with no other retirement plan maintained — and the employer must contribute every year, either a match of up to 3% of compensation or a 2% nonelective contribution for each eligible employee.
Federal thresholds, not promises
Combining two offices — and filling gaps with temp days
BLS describes the pattern plainly: many dental hygienists work part time, dentists may hire hygienists to work only a few days a week, and so some hygienists work for more than one dentist.
A second office is how a three-day schedule becomes a five-day income without either employer committing to full time.
The benefits math counts per employer.
The ACA's 30-hour test measures hours of service with an employer, so 16 hours at each of two offices leaves you under the line at both.
Combining offices rebuilds income faster than it rebuilds benefit eligibility.
Agencies are the other employer type in this picture.
BLS measured hygienists employed by employment services firms — NAICS 5613, which includes temp agencies — at a median of $102,340 a year ($49.20 an hour) in May 2025, against $98,280 in offices of dentists.
Those are annualized figures for people employed by agencies, not day rates for picking up shifts; how temp and PRN rates are actually set is covered in our guide to temp and PRN pay.
Travel assignments are a different pattern again — short-term placements away from home rather than a second local office — and our guide to travel hygienist pay covers how those packages are quoted.
How common part-time schedules are, what they look like week to week, and the logistics of splitting days between two offices are covered in our guide to part-time hygienist jobs.
This page stays on what the arrangement pays.
Full-time vs part-time trade-offs
On the rate itself, the 2025 ADA data say the trade is close to a wash: $50.00 an hour part-time versus $48.80 full-time across all dentists' practices.
What changes is everything wrapped around the rate.
- Annual income scales with hours. At the median rate, about $78,474 at 32 hours, against the $98,100 annualized full-time median.
- Benefits hinge on thresholds, not goodwill — the ACA's 30-hour line at employers with 50 or more FTEs, the FMLA's 50-employee floor and its 1,250-hour employee test, paid time off as a matter of agreement, and the 401(k)'s 500-hour part-time rule where a plan exists.
- The rate doesn't price the schedule. Every figure on this page counts wages only; what a weekday free is worth to you never shows up in them.
- Two offices trade commute for hours — and, as above, income rebuilds faster than benefit eligibility.
If you're weighing this from the practice side — budgeting a part-time schedule against a full-time hire or day-by-day coverage — see temp vs full-time hygienists for how employers make that call.
However the schedule lands, the numbers to negotiate are the rate, the weeks, and the eligibility lines.
Ask each office which benefits a part-time schedule qualifies for, and get the answer in writing.
This article is general career and employer information, not legal, tax or financial advice.