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.
Cigna Dental PPO plans are insured or administered by CHLIC or CGLIC, with network management services provided by Cigna Dental Health, Inc. and certain of its subsidiaries. In Texas, the insured dental plan is known as Cigna Dental Choice, and this plan uses the national Cigna DPPO network.