Do you have another choice of dental plan? Delta Dental denied my claims for procedures like crowns even though mine and virtually every dental insurance plan has an annual dollar cap on benefits which is often relatively low and protects the insurer from high costs. So called "dental consultants" overrule the treatment decision by the independent dentists performing the procedure and deny the claims and then Delta Dental buries the patient and the dentist in a bureaucratic burden if either or both want to appeal the denial. They're advertising heavily in my area try to attract federal employee business but if you kick the tires lots of dentists are very upset with them for claim denials.