The Tanner/CR Splint is a repositioning splint that is fabricated on the mandibular arch and is used to advance the mandible. It is a full-coverage splint with acrylic that contacts the upper anterior and posterior teeth and is fabricated to the Construction Bite position as provided with the working models.

The anterior portion has a slight incline that is balanced so as to allow lateral and protrusive movements with incisal guidance. The posterior acrylic typically has slight indexing of the upper posteriors to help maintain the pre-determined mandibular position as provided by the Construction Bite.