Lakes District Health Board has recognised 21 staff for long service with one staff member employed for 50 years.
Dental therapist Jan Stevenson has worked in Rotorua for the last 50 years.
She said she decided she wanted to be a dental therapist when she was 12 years old.
When she trained at the Christchurch School for Dental Nurses the students wore white uniforms, veils and stockings, and had to stand with their hands behind their backs to speak to the dental offices.
The later years of her career saw her learn to use the computerised patient record system called Titanium.
She came to Rotorua in 1974 after working elsewhere in New Zealand and travelling overseas.
She started at Kawaha Point School when it opened in 1979 and was there when the school clinic was closed in 2010 with the new oral health business case.
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She has treated a generation of people through the school as patients and then seen their children as patients, but said her 50 years of service had gone in a flash.
"I like working one on one with people. The children have kept me going I would have left if I didn't like it. I've been lucky to do a job I enjoy and work with children which I like."
Another dental therapist recognised for long service was Ngaire Mitchell, who celebrated 40 years of long service.
Other staff acknowledged for long service were:
40 years: CNS Children's Outreach, Robin Covell; Staff Nurse Lyne Dawick, Staff Nurse Cheryl Green.
30 years: Staff Nurses Sandra Bentley (ED); Staff Nurse Ngaire Bolstad (ICU_CCU); Staff Nurse Dianne Hopgood (Renal); Staff Nurse Cathy Larsen (Theatre); CNS Children's Outreach Catherine Mott; Staff Nurse Margaret Robson (Maternity); HCA Julie Rose.
20 years: CNM Taupo ED Wendy Ayre; Associate Director of Nursing Maori Health Jean Batt; Storeman Richard Carlson, Occupational Therapist Professional Advisor Carlynne Curd-Hope; Anaesthetic Technician Mike Faulkner; Staff Nurse Lugina Graham (Paediatrics), Staff Nurse Karleen McNab (ED); Staff Nurse Jeanette Peacock (SCBU); Orthopaedic Coordinator Kiti Tuifagalele.
Board chairman Deryck Shaw said people in the Lakes communities of Rotorua and Taupo were lucky to have had services provided by such committed staff.
"I am always humbled when I attend these ceremonies and realise the length of service and the dedication of our staff," he said.
"Our DHB is lucky to have staff who have worked for us for such long periods of time."
He noted that while the length of service was notable, it was the fact that so many staff were dedicated to offer exceptional care to all patients in the Lakes communities.