Yes, it is generally possible to add a spouse and dependents to a Humana One dental insurance plan. Many dental insurance plans offered by Humana include options for family coverage that allow members to enroll their spouses and children. The specific terms and eligibility for adding family members may vary based on the plan selected. Typically, during open enrollment periods or qualifying life events, members can make changes to their coverage, including adding family members. For detailed information regarding the specific plan options, eligibility criteria, and any potential additional costs associated with adding family members, it is advisable to review the plan documentation available on the Humana website. This can provide the most accurate and updated guidance on family enrollment in dental coverage.