Abstract: An orthodontic device for retaining teeth in position, or for making minor adjustments to tooth position. The dental retainer includes a rigid lingual portion or arch, and a more flexible and comfortable labial portion or arch, arranged so as to allow the cutting surfaces of the upper and lower molar teeth to meet. Small protrusions of harder material may be located on the inner surface of the labial portion to fit between the teeth in order to prevent relapse of tooth position.