Abstract: Dental appliances are provided for correcting tongue-related conditions. The dental appliance includes an attachment mechanism having a circumferential band. The circumferential band has a first surface on a vestibular side of the dental arcade, and a pair of left and right second 5 surfaces on the lingual side of at least one rear corresponding left or right tooth. The attachment mechanism includes a connector joining the first and second surfaces, and is adapted to snap onto the dental arcade. The dental appliance further includes a constraining mechanism removably secured to the attachment mechanism and having a component that spans between the second surfaces. The component has a rearward or forward orientation, 0 and is configured to seat at approximately the occlusal plane. The component limits the movement of a portion of the tongue, while allowing the tongue to perform movements necessary for speech and swallowing.