(2) “Carrier” means an insurer, nonprofit health service plan, health maintenance organization, or dental plan organization that provides dental benefits on an expense-incurred basis under policies or contracts issued or delivered in the State.

(3) “Dental preventive care” means a preventive dental visit, screening, oral examination, teeth cleaning (prophylaxis), fluoride treatment, or routine preventive service that is a covered benefit under a policy or contract issued or delivered by a carrier.

(1) at any time during the plan year for a policy or contract that provides coverage for dental preventive care once during the plan year; or

(2) subject to subsection (c) of this section, in accordance with any frequency limitation for a policy or contract that provides coverage for dental preventive care more than once during the plan year.