The occlusal plate, also known as the joint plate, is a transparent plastic tray that covers the upper teeth, lower teeth, or both, depending on the appearance of the bruxer. The purpose of the occlusal plate is to prevent the upper teeth from touching the lower teeth. It is the most commonly used device to protect teeth from wear caused by grinding and clenching teeth, as well as to absorb the forces involved.
It is possible to make a plastic tray that will be worn on the upper or lower teeth and whose contacts will be precisely adjusted to promote muscle rest. This solution is often used for a night port only. In other situations, the plate will have to be worn day and night, but this is usually a temporary solution.
The occlusal plaque is custom-made in the dental office from dental impressions previously taken from the patient. These impressions are used, first, to make models of the teeth and, second, to make the joint plate itself. There are a wide range of occlusal plate models to suit the dentition, occlusion and physiognomy of the burners.
It should be noted that a joint plaque does not cure the cause or consequences of bruxism. Rather, it acts as a preventive measure by allowing the jaw muscles to relax, thus reducing the pressure exerted on the temporomandibular joints (TMJ). Over time, the teeth grinding reflex may disappear and the damage caused by the squeezing decreases considerably.