Whether short-term or long-term, dentists prescribe or recommend the duration of nightguards depending on the severity, the existing condition of the teeth, the severity of attrition, and the intensity of clenching and grinding habits. Wearing the night guard protects teeth from further damage. One can stop wearing night guards if the habits no longer exist and continue to show damaging effects. However, these habits may also occur subconsciously at night, so it is best to continue wearing them as a preventive measure.