TMJ Patient IFU

Device Descriptions 

Dandy TMJ appliances are intraoral devices used for treating TMD and TMJ (temporomandibular joint) pain.  They consist of a single custom fitted tray, or a dual arch design. The goal of these devices is to support the  TMJ and in some cases retrain muscles to avoid harmful movements. 

These devices are custom made for each patient, and are sold by prescription only. The dentist is expected to evaluate the patient and assess which treatment path is most appropriate. If treatment includes an intraoral appliance, the dentist will determine which one is best suited for the individual case. 

Appliance Selection 

The selection of the appropriate TMJ appliance will depend on patient and/or doctor preference. In order to properly diagnose the case, the dentist may do imaging (i.e. X-rays) and conduct a physical examination. It is key to understand if the root cause of the issue is due to muscle spasms or damage in the joint (the joint can erode or move out of proper alignment, cartilage can be damaged, or the joint could be damaged from impact). 

Indications For Use 

Dandy TMJ Appliances are intended to reduce pain and discomfort in the TMJ and in some cases help retrain muscles to avoid these movements. The devices are worn while sleeping to support patients’ TMJ in the position prescribed by the dentists. The appliances are removable by the patient. 

Operating Instructions 


+ Brush with a toothbrush before each use. 


+ Dry and store in the provided case when not in use. 


+ All adjustments should be done by the prescribing dentist or physician. 


+ To properly remove the appliance, using both index fingers, pull down in the front area of the upper appliance. + For Dawson B-splint, do this for the upper first; second, for the lower, pull up in the front area. + To avoid breakage, do not pull down the back of the appliance. 


+ Expect a 2-3 year product life with the appliance. 

+ Appliance replacement signs are; cracks in the acrylic and failure of the device to maintain retention in the patient’s mouth.


For the select subset of patients that have surgery to treat TMD or any TMJ issues, any further treatment with TMJ appliances / splints should be prescribed by the surgeon. 

Warnings and Precautions 


+ Tooth movement or changes in dental occlusion 

+ Gingival or dental soreness 

+ Pain or soreness to the temporomandibular joint 

+ Obstruction of oral breathing 

+ Excessive salivation 


Dentists should consider the medical history of their patients, including history of arthritis, surgery, impact trauma, any previous TMJ treatment, or respiratory disorders, or other relevant health problems, and refer the patient to the appropriate healthcare provider before prescribing the device.


TMJ Patient Instructions PDF

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