A dental support device for inserting between the jaws or teeth of a patient to prevent biting or clamping during treatment comprises a hollow rigid elongate portion for placing between the jaws and a laterally extending flange serving to limit or restrict full insertion of the device into the mouth of the patient and optionally a pliable outer skin formed for cooperative engagement with at least a portion of the outer surface of the elongate portion that provides improved comfort and grip for the patient in use and safety for the user and/or a flexible and/or a pliable inner skin formed for cooperative engagement with at least a portion of the inner surface of the elongate portion that provides an improved grip and thereby improved accuracy and safety for the user.
