A dental splint, a method for fabricating and installing same is disclosed for stabilizing mobile or unstable teeth. The dental splint comprises a one-piece extracoronal component customized to the dentition of a patient, wherein the one-piece extracoronal component is adhered to the lingual aspect of the teeth and substantially non-visible facially. The fabricating of the dental splint for stabilizing mobile or unstable teeth or firmly rooted teeth to prevent orthodontic relapse comprising the steps of: examining patients dental arch to determine if lingual reduction is required creating a representative model of the patients dental arch manipulating said representative model to select a group of teeth to be included in the dental splint and to define the height and length of a one-piece extracoronal component customized to the dentition of a patient fabricating said one-piece extracoronal component dry fitting the fabricated one-piece extracoronal component to confirm proper fit and adhering the fabricated one-piece extracoronal component to said mobile or unstable teeth, wherein said one-piece extracoronal component adheres to the lingual aspect of said teeth and appears substantially non-visible facially. In one embodiment, one-piece extracoronal component is bonded to a group of teeth which are all mobile or unstable. An alternative embodiment disclosed herein provides a one-piece extracoronal component bonded to a group of firmly rooted teeth to prevent orthodontic relapse.
