ClearRetain products are made under the direction of an orthodontic lab technician with 35 years experience and supervised by a licensed orthodontist. ClearRetain uses Essix Plus material for fit, clarity, stain resistance, and maximum durability. As a result, you receive a superior quality custom retainer. At ClearRetain, we use state-of-the-art computerized equipment. This assures the product will fit perfectly to the impression you send us. Our priority is your satisfaction. read full review »