D2950 Core Buildup, including any pins. Dentist perspective: Many complaints concerning the denial of core buildups were brought to the attention of the ADA Council on Dental Benefit Programs. Dentists perform this procedure when it is necessary prior to restoring a tooth with a crown.

Code D2391 (one-surface posterior resin-based composite) explicitly states that it should be “used to restore a carious lesion into the dentin.” The rationale for the requirement that the lesion extends into dentin can be questioned.