The GELB SPLINT
The Gelb is a flat plane mandibular splint, with occlusal coverage over the posteriors, designed for treatment of closed-lock cases. A metal lingual bar is usually the major connector, which allows for plenty of tongue room. The patient needs to relax the disc before moving to a pull-forward splint, so this splint is usually made to a centric bite. Patients should be seen often during this stage of treatment. A 30 day interval is normal to check the range of motion.
By placing the condyle in its fossa, the GELB splint repositions the mandible, resulting in neuromuscular equilibrium. This splint can further close the bite in orthodontic treatment.
The GELB splint is fitted with retention clasps. Its two acrylic pads are linked together by a very stiff lingual bar that extends along the gingival and lingual surfaces of anterior teeth. These pads cover the mandible posterior teeth. The maxillary posterior teeth rest on the area where the splint is slightly indexed at the upper lingual cuspid. Moreover, the splint enables the mandible to reposition itself slightly forward.