Interim caries arresting medicament application is covered twice per tooth per year. For age 19 and over, many restorations are not covered within 2 months of interim caries arresting . Products: Emergency Dental · Stand-Alone Dental · Senior Dental · Pediatric Dental. Delta Dental PPO Plus Premier™ With the Delta Dental PPO Plus Premier plan, you and your family members may visit any licensed provider. However, you will receive the greatest out-of .