They are a business and are out to make money. I have come to question their ethics. They have many payment methods because they will tell you everything that is wrong with you --whether it needs to be fixed or not. You have to wonder about a place that has tvs in every chair. How do they have money for that? I have heard that they give incentives to their employees for whoever sells the most teeth whittenings in one week. They told numerous people I know that they had some gum problem wrong with their teeth & when one checked with another dentist, he denied it, saying it wasn't a problem. They are very nice however.