Most enrollees will automatically receive new ID cards for the mandatory Pediatric Dental coverage that is now part of all 2014 health plans. These are automatically generated and mailed to members. Under the ACA, pediatric dental coverage is mandated for all children.
Each health plan is handling this differently, but many of their systems are issuing the ID cards and sending even to members with no children covered. These are sent in error and can be disregarded. The health plans are working on ways to suppress those cards, but the system is not working consistently at this time.
If you have children on your plan, keep the ID cards. If you need to see what the benefits are, look for the Pediatric Dental information on either the Anthem or Kaiser pages.