"Managed" dental care is a great idea.
However, many dentists strongly feel that it should be "managed" by their patients, for their benefit - instead of by a dental insurance company for its benefit.
If you are covered by a dental insurance plan, and if your employer offers you a range of different programs, the time you spend investigating benefits will be time well spent. Doing so puts your family in control of the quality of dental care you can demand and receive from your dental coverage.
Words can have very different meanings, depending on an individual's point of view. Some low cost dental insurance plans restrict patients to "preferred providers" of dental care. That sounds impressive until you recognize that providers are "preferred" by the insurer, not necessarily by you. And in many cases they're preferred, frankly, because they agree to sell their services at a discounted rate.
Review your own insurance options carefully: some dental plans allow participants to continue receiving optimum care from their current physicians and dentists. Some don't. It's your choice.
The idea of solving dental health problems "at no (or minimal) cost to you" is understandably appealing. But recognize the tradeoff. Simply put, it's "little cost and less choice."