The GI, or digestive, tract extends from mouth to anus (see the image below). The division of the GI tract into upper and lower is a matter of some confusion and debate.
Dental PPO insurance plans, also known as dental preferred provider organizations or DPPOs, are a popular dental insurance option due to their flexibility in allowing insured members to choose dentists and dental specialists.
DeltaCare PMI (DHMO) A dental health maintenance organization (HMO)/managed care dental plan helps control costs. The plan allows enrollees to select a PMI network dentist to provide dental care. PMI Dental. Health Plan and its affiliates offer a large network of carefully screened private practice dentists.