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Board of Denture Technology

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Practitioner information

The following regulated profession is overseen by the Board of Denture Technology. Learn more about applying for a license, associated fees, laws, rules and more by following the link below:

About the board

The Oregon Board of Denture Technology oversees the practice of denturists. Denturists construct, repair, reline, reproduce, duplicate, supply, fit or alter removable prosthetic dental appliances, otherwise known as dentures. In the fitting process, denturists also take impressions, bite registrations, try-ins or insertions. Denturists provide full dentures to replace complete sets of original teeth that are missing in the upper, lower or both sections of the mouth, or partial dentures, which fit sections of the mouth in which some of the original teeth remain.

The Board of Denture Technology consists of seven members appointed by the governor and confirmed by the Oregon Senate:

  • four active licensed denturists
  • one Oregon licensed dentist in active practice
  • two public members who do not possess the professional qualifications of other members and who are not a spouse, domestic partner, child, parent or sibling of an active licensed denturist or dentist

The term of office of each member is three years, but a member serves at the pleasure of the governor.

Board members

Clayton Rees

Term: 1st Full
Term end: 9/22/2022

Following his military service, Clayton graduated from Portland Community College with an Associate Degree in Business and Accounting. He was a honors graduate at Portland State University earning a Bachelor's Degree in Psychology in 1970.

He received a Master of Public Administration: Health Administration Degree from Portland State Univerity in 1990, and completed a year of post graduate studies in Public Administration and Policy. While doing graduate studies in PSU's School of Urban and Public Affairs, Clayton was honored for his work with community organizations.

He received a Master of Science Degree in Rehabilitation Counseling from Western Oregon University (WOU) in 2004. From 2005 to 2015, he held the position of adjunct faculty at WOU and currently serves on the WOU College of Education, Curriculum Advisory Committee.

Clayton has a long history of working with, and developing and managing programs for young people with disabilities. In 1984, he began his career as a private vocational counselor and business consultant. In 1996, he was employed by the state of Oregon to work with people with disabilities and working with local school districts assisting youth with disabilities in Tillamook, Astoria and Hillsboro, Oregon.

In 2001, Clayton became a Program Manager for the State of Oregon, Office of Vocational Rehabilitation for the Career Workforce Skills Training (CWST) Program in five Oregon community colleges (Portland, Lane, Rogue, Clatsop and Chemeketa Community Colleges).

In 2002, Clayton was the Youth Transition Program Coordinator for the Oregon Department of Human Services, Office of Vocational Rehabilitation. In 2006, he was honored as the Outstanding Special Needs Administrator of the Year by the Oregon Association of Vocational Special Needs Personnel.

In 2010, Clayton retired from public service, but was asked to come out of retirement to complete work on a $2.8 million federal model demonstration grant known as Project ACCESS. He was the Project Manager for the grant, a collaborative effort between Oregon Department of Human Services, Office of Vocational Rehabilitation, Oregon Department of Education, University of Oregon, College of Education, five school discticts in Lane County, and five Confederated Native American Tribes in Oregon. The program established innovative programs for youth with disabilities transitioning from high school to post-secondary activities, including independent living, higher education, and employment.

Clayton formally retired  from state of Oregon employment in 2014. Prior to his retirement, Governor John Kitzhaber appointed Clayton to the State of Oregon Rehabilitation Council (SRC), and in 2013, Governor Kate Brown reappointed Clayton to another three-year term. He will end his tenure on the SRC in November 2019.

Currently, he is serving as an elected director and Vice-chair for the Tillamook County Emergency Communications District (the 911 system). He has also served on the Tillamook County Commission on Children and Families and was appointed to the Tillamook County Health Council. He was an elected member of the Rockaway Beach, Oregon city council for a total of nine years.

Clayton has devoted his lifetime to promoting independence and success for young people with disabilities. He has presented at local, state, national, and international conference on youth in foster care, and youth with disabilities. He has a long history of public service within the Tillamook community.

Through his work in public administration, as a private business owner, and working for not-for-profit organizations, Clayton has devoted his energies in gratitude for all the kindnesses he and his family have received from the citizens of Tillamook, as well as public, private, and not-for-profit organizations.

Clayton has been a resident of Oregon for 54 years and has resided in Tillamook County for 39 of those years. He and his wife live in Beaver, Oregon (South Tillamook County) where they own and operate a 70 acre horse ranch.

Nels Hvass

Term: 2nd Full
Term end: 2/29/2020

Nels Hvass is a licensed denturist working with Natural Dentures, in Eugene, Oregon. He has served as a board member, president, and vice president of the Oregon State Denturist Association.

Christopher Chapman

Term: 2nd Full
Term end: 9/25/2022
Hood River

Christopher Chapman started as a laboratory technician with Artistic Denture Center in Roseburg in 1997. In 1998, he enrolled in George Brown College's International Denturist Education program in Toronto, allowing him to continue clinical and laboratory training under a licensed denturist. He sat for his Oregon Board of Denture Technology exams in 2001.

"I believe the experience I've gained in the last 20 years, in directly treating patient and by associating with professionals who pledge to give the patient the best treatment offered has been invaluable," Chris said.

Chris was born in Arizona and spent 10 years in Missouri before moving to Hood River. Having spent 30 years living in Idaho and Oregon, he considers the "Northwest" his home.

Chris is married to his beautiful wife Melanie, and they have six adorable children! Having been raised in rural, small town, farming and logging communities, Chris loves the simple hard working lifestyle that surrounds them in the Gorge area.

Grant Smith

Term: 1st Full
Term end: 9/22/2022
Junction City

 Bio to come...


Ron Farris

Term: 1st Full
Term end: 2/28/2023

​Bio to come...

The Board of Denture Technology currently has an opening for a Dentist. To apply, fill out the Application form.

The Board of Denture Technology currently has an opening for a Public Member. To apply, fill out the Application form.

Board recruitment

Are you interested in serving as a volunteer citizen board member? HLO-regulated boards seek new members as current member terms expire.

Overview of HLO-regulated professions and boards
Current board vacancies and information on how to apply


For licensing qualification questions, contact Qualifications Specialist Sarah Bye at 503-373-1989 or

For policy questions, contact Policy Analyst Samie Patnode at (503) 373-1917 or

For board recruitment questions, contact Paige Sims at 503-373-1915 or

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