The Trust Dental Plan covers the following services when performed by a licensed dentist and when determined to be necessary and customary by the standards of generally accepted dental practice for the prevention or treatment of oral disease or for accidental injury, including masticatory function. No benefits are payable for services or supplies for which the patient is not liable.

The following services may also be provided by a dental mechanic or denturist to the extent that he or she is operating within the scope of his or her license as required under law in the state of Oregon.