A medical device is an instrument, apparatus, implement, machine, contrivance, implant, in vitro reagent, or other similar or related article, including a component part, or accessory which is:1  recognized in the official National Formulary, or the United States Pharmacopoeia, or any supplement to them, medical device is an instrument, apparatus, implement, machine, contrivance, implant, in vitro reagent, or other similar or related article, including a component part, or accessory which is: 1  recognized in the official National Formulary, or the United States Pharmacopoeia, or any supplement to them,
1 On average, a retainer can cost anywhere from $500 to $2,100 for both the top and bottom. 2  For those that have dental insurance, many policies will cover a portion of the procedure depending on what the deductible, co-pay, etc.3  For example, a patient in Houston, Texas had bonded retainers ordered for a total of $1,400. If braces are not needed, an orthodontist can fit a retainer to fix problems such as an overbite. 2  On average, a retainer can cost anywhere from $500 to $2,100 for both the top and bottom.
If replacement costs aren't included, the cost of replacement retainers  not covered by most dental insurance policies  can be $150 to $300 each. Clear Aligners: Attractive alternatives to traditional braces, clear or âinvisibleâ aligners are a series of clear, customized appliances.