How Do Teeth Retainers Work and What Do They Cost?

2. What is the cost of teeth retainers? The cost of teeth retainers varies depending on the type recommended by your orthodontist. A wire retainer typically costs between $150 and $500, while an Invisalign retainer may range from $500 to $1500. It is best to consult your orthodontist to understand the options and choose one that fits your budget.