However, this would lead to a lack of axial height and thus insufficient retention and resistance for conventional extra-coronal restorations. Tooth preparation and the associated loss of coronal tissue can risk further insult to the pulp and limit the options for future restoration replacement.[1] An alternative approach is to create the necessary space by reorganising the occlusion by means of an arbitrary increase of the vertical dimension of occlusion, i.e. the use of a dahl appliance. The creation of this interocclusal space will significantly reduce the amount of tooth preparation required, especially on the already compromised palatal surfaces of the maxillary anterior teeth.