Abstract: A dental impression tray for obtaining an impression of a patient's dentition has a pair of spaced apart limbs spanned by a support for impression material. Each limb has a buccal wall that extends beyond the level of the support and a lingual row of spaced apart projections which also extend beyond the level of the support. Between the buccal wall and the adjacent row of projections is a web pierced by a plurality of openings. The impression material support is a mesh having openings therethrough. The buccal wall, the upstanding projections, the openings in the web, and the openings in the mesh provide an interlock between the dental impression material and the tray which restrains relative movement between the latter and the impression material during the forming of an impression of the patient's dentition.

Abstract: An occlusal splint is prepared by forming a wax pattern of a patient's bite corresponding to a desired occlusal spacing and fitting the pattern to working models of the patient's jaw teeth to duplicate the spacing in the models. A splint preform of light-curable octadecyl methacrylate composite material is applied to the model after which the occlusal impression is duplicated in the preform. The preform is then cured under high intensity light and then polished to complete the finished splint.

Abstract: A preformed pattern for forming an occlusal splint having a U-shaped member composed of material that is form-stable at room temperature and sufficiently pliable at an elevated temperature to be conformed to the bits of a person's jaw or to a model of such person's jaw.

Abstract: A preformed pattern for forming an occlusal splint comprises a U-shaped member composed of material that is form-stable at room temperature and sufficiently pliable at an elevated temperature to be conformed to the bits of a person's jaw or to a model of such person's jaw.