If you're talking about a new car, you can barter with the salesperson. If you're talking about a new house, you can negotiate with the homeowner. But if you're talking about a new smile, there's no haggling with your dentist's office. Even with insurance, remembering to set money aside for your dental bills often slips through your budgetary cracks. But delaying your payments is not a financially healthy option either. Check out how to finance your dental work with these smart and realistic options.