A correct and reliable mandibular position is considered one of the basic factors in achieving a proper diagnosis in
Orthodontics. One of the most commonly used ways to determine a true mandibular position is the interposition of an oclusal
splint in order to deprogram the musculature and eliminate neuromuscular adaptation. The fabrication of the splint has been
usually performed following one of these two methods:
1. Vacuum-formed splints onto which self-curing acrylic can be added.
2. Custom-made type of splint totally fabricated with self-curing acrylic. The splint is placed in the mouth and the followup
of the patient is carried out with devices that allow to monitor the condilar position. Namely, the Mandibular Position
Indicator (MPI) when using the SAM articulator, and the Condylar Position Indicator (CPI) when using the Panadent articulator.
Both of them allow us to have an exact reference of the condilar position and its modification through the use of the splint. The
data obtained is processed in order to establish a proper diagnosis of the patient’s Centric Relation (CR) that would be
considered a departing point for an accurate treatment planning.
(Rev Esp Ortod. 2003;33(1):041-049)