Versions of Oregon Statutes 679.020 - Practice of dentistry or operating dental office without license prohibited; exceptions on LawServer 2023 Oregon Statutes 679.020 – Practice of dentistry or operating dental office without license prohibited; exceptions 2021 Oregon Statutes 679.020 – Practice of dentistry or operating dental office without license prohibited; exceptions 2019 Oregon Statutes 679.020 – Practice of dentistry or operating dental office without license prohibited; exceptions 2017 Oregon Statutes 679.020 – Practice of dentistry or operating dental office without license prohibited; exceptions 2015 Oregon Statutes 679.020 – Practice of dentistry or operating dental office without license prohibited; exceptions 2013 Oregon Statutes 679.020 – Practice of dentistry or operating dental office without license prohibited; exceptions 2009 Oregon Statutes 679.020 – Practice of dentistry or conducting dental office without license prohibited; exceptions