A method of manufacturing a dental stent , the method comprising steps of: (a) creating an initial model of a patient's teeth; (b) digitally scanning the initial model to create a digital model; (c) digitally re-designing at least some of tooth forms in the digital model, and digitally sectioning all re-designed tooth forms from a remainder of the digital model, thereby to create a modified digital model; (d) 3D printing a modified model from the modified digital model, in which re-designed tooth forms are each individually removable from a corresponding socket provided in a base of the modified model; (e) forming a template over the modified model ; (f) forming the outer shell of the stent over the template; (g) removing the outer shell and the template from the modified model , and removing the template from the outer shell; (h) forming the set of separator strips ; (i) inserting a separator strip between each pair of adjacent teeth forms of the modified model ; (j) filling the outer shell with an inner bed material; (k) placing the outer shell over the model such that the teeth forms and the separator strips are caused to be inserted into the inner bed material; (l) allowing the inner bed material to set; (m) removing the dental stent from the modified model ; wherein after manufacture, the dental stent comprises: the outer shell ; an inner bed formed of the inner bed material and comprising a contoured cavity corresponding to the modified model; and the set of separator strips , each of which are partially embedded into the inner bed . (a) creating an initial model of a patient's teeth; (b) digitally scanning the initial model to create a digital model; (c) digitally re-designing at least some of tooth forms in the digital model, and digitally sectioning all re-designed tooth forms from a remainder of the digital model, thereby to create a modified digital model; (d) 3D printing a modified model from the modified digital model, in which re-designed tooth forms are each individually removable from a corresponding socket provided in a base of the modified model; (e) forming a template over the modified model ; (f) forming the outer shell of the stent over the template; (g) removing the outer shell and the template from the modified model , and removing the template from the outer shell; (h) forming the set of separator strips ; (i) inserting a separator strip between each pair of adjacent teeth forms of the modified model ; (j) filling the outer shell with an inner bed material; (k) placing the outer shell over the model such that the teeth forms and the separator strips are caused to be inserted into the inner bed material; (l) allowing the inner bed material to set; (m) removing the dental stent from the modified model ; wherein after manufacture, the dental stent comprises: the outer shell ; an inner bed formed of the inner bed material and comprising a contoured cavity corresponding to the modified model; and the set of separator strips , each of which are partially embedded into the inner bed . the outer shell ; an inner bed formed of the inner bed material and comprising a contoured cavity corresponding to the modified model; and the set of separator strips , each of which are partially embedded into the inner bed . <EOS>