How Much Does It Cost to Replace a Dental Hygienist?
Losing a hygienist costs most practices $30K-$50K once you count everything. The recruiting fee is the smallest piece. The big money bleeds out through empty hygiene chairs and the months of ramp-up nobody puts on a spreadsheet.
Here's the full breakdown, line by line, so you can run it for your own practice.
The visible costs
Recruiting: $2K-$8K. Job board postings run $300-$500 a month, and in most markets a hygienist search takes 2-4 months. Use a staffing agency or recruiter and you're paying 15-20% of first-year salary, which on an $85K hygienist is $13K-$17K by itself.
Temp coverage: $4K-$12K. Temp hygienists bill $60-$85/hour depending on your market. Covering 3 days a week for two months runs about $9K-$12K. Skip the temp and the cost doesn't go away, it just moves into the lost-production line below and gets bigger.
Sign-on and wage bump: $2K-$10K. In tight markets, replacement hygienists routinely cost $3-$6/hour more than the person who left, plus a $2K-$5K signing bonus. A $4/hour bump on a full-time schedule is about $8K a year, every year, not just year one.
The invisible costs, which are bigger
Lost hygiene production: $15K-$30K. A full-time hygienist produces $1,200-$1,800 a day. Even with decent temp coverage you'll run short days and unfilled columns. Two months at 60% capacity on a $1,500/day column is roughly $26K in production that never happened.
Lost doctor production riding on hygiene. This is the one owners miss. Hygiene exams feed your restorative schedule. Industry rule of thumb: every $1 of hygiene production points to $2-$3 of doctor production through diagnosed treatment. Fewer prophy visits for three months means a thinner crown-and-fill schedule in months four through six.
Ramp-up: $3K-$8K. A new hygienist takes 60-90 days to hit full speed in your office. Slower appointments at first, learning your perio protocols, building trust with patients who ask "where's Sarah?" Expect the column to run 10-20% under its old numbers for the first quarter.
Patient attrition. Some patients follow a hygienist they've seen for a decade, especially if she went to the practice down the street. Losing even 10 recall patients at $650-$900 a year each is another $7K-$9K of annual revenue gone quietly.
Run your own number
Quick version: take your hygienist's daily production, multiply by the days the chair will sit light (usually 30-50), add recruiting costs, add the wage difference for a year. For a typical practice that's $1,500 × 40 days = $60K in production exposure, of which you'll realistically lose a third to a half, plus $5K-$10K in hard costs. You land in that $30K-$50K range almost every time.
The cheaper play is keeping the one you have
The retention math is lopsided. A $3/hour raise costs about $6K a year. A departure costs $30K-$50K once. If a solid hygienist asks for a raise and the number is within market range, the spreadsheet says pay it and don't feel bad about it.
Same logic for the smaller stuff: updated ultrasonic tips, a working chair, an assistant to flip rooms during doubled columns. Hygienists mostly quit over broken equipment, chronic overbooking, and feeling like a production line. All three are cheaper to fix than a single replacement cycle.
If you're above one hygiene departure a year in a 2-3 hygienist practice, treat it like the $40K annual leak it is, not bad luck.
