A sterile curved device designed to fit over the upper and lower sets of teeth to protect them from damage during endotracheal (ET) tube intubation procedures. Such protection can be required when the patient is resisting the intubation by clenching their teeth which can be damaged against the metal or plastic blade of the intubation laryngoscope, and/or if the patient has bad teeth that are liable to inadvertent damage, and/or if this is normal hospital procedure to counter liability claims. This is a single-use device.