A tooth impact protection guard incorporates a posterior portion with a labial margin substantially at a contour of an alveolar ridge. The posterior portion extends over an occlusal surface of each posterior tooth and covers the lingual cusps to a posterior lingual margin at the cemento-enamel junction. An anterior portion has a contiguous labial margin with the posterior portion at a contour of the attached alveolar ridge. The anterior portion terminates in an anterior lingual margin substantially adjacent an incisal edge of each anterior tooth with an overlap of between 2 and 5 mm.