A variety of problems involving the masticatory system can be partially attributed to parafunctional habits such as bruxism. These include occlusal trauma, abfractions, tooth migration, as well as temporomandibular dysfunction. Since bruxism is considered a contributing factor to the above-mentioned dental problems, it is essential to consider parafunctional habits in the diagnosis and treatment planning before doing any occlusal reconstruction. However, the problem lies in the lack or absence of a simple device or gauge useful to be able to diagnose and evaluate the occlusal schemes in the patient's grinding pattern. In this study, we have developed a very simple device (BruxChecker) for evaluating the grinding patterns in sleep bruxism. Using the BruxChecker, it was possible to visualize real or actual interferences during sleep bruxism. Therefore, examination of the grinding pattern using this device is necessary and crucial for making the proper treatment plan for each patient.