Is that cost through your employer or a private dental plan?I'd disagree with that. Family of four and I pay like $10/week and haven't seen a bill for cleaning, x-rays or anything else in years.
I will say this. If you have kids who will need braces, that isn't covered by dental insurance. Make sure you opt in for a HSA at work if possible and use that to pay off those costs. For my kids by paying up front, I got a 15% discount on the cost. Used the HSA to pay it off and the money going in to an HSA is pre-tax money.