Abstract: Dental prosthetics, including implants, crowns and bridges, made from nanophase materials. The nanophase materials are generally manufactured by evaporating a metal or other solid substrate by heating it to a temperature at or above its boiling point in a vacuum to form a vapor. The vapor is then condensed back to a solid state through contact with a cold gas. In a first method, the nanophase material is heated until it is in a fluid state, then it is poured into a mold and cooled to form all or part of a dental prosthetic. In a second method, the nanophase material is placed into the mold in a powdered form, then heated so that the grains form a solid mass. Nanophase crowns and bridges should generally be formed in one piece, but the upper surface of a nanophase prosthetic will usually be covered with porcelain or another non-nanophase material.

Abstract: An improved dental impression tray, to be placed under an upper jaw or over a lower jaw, combining the following features: 1. Creases or lines of perforations running through the base and side walls of the tray and the middle of the tray's handle, so that the tray can easily be broken in portions, if an impression of only one side of a jaw needs to be taken. 2. Ridges or protrusions on opposite interior walls of the tray, to better retain the rapidly hardening semi-fluid material with which the impressions of the teeth and/or gums are taken. 3. Base panels of the tray separated from the walls of the tray by gaps around their perimeters, and connected only by narrow strips of the material from which the tray is made, so that the base panels can be easily detached when desired, thus creating an opening in the bottom of the tray that may be desirable for certain forms of oral surgery, especially work involving dental implants. 4.

Abstract: Dental prosthetics, including implants, crowns and bridges, made from nanophase materials. The nanophase materials are generally manufactured by evaporating a metal or other solid substrate by heating it to a temperature at or above its boiling point in a vacuum to form a vapor. The vapor is then condensed back to a solid state through contact with a cold gas. In a first method, the nanophase material is heated until it is in a fluid state, then it is poured into a mold and cooled to form all or part of a dental prosthetic. In a second method, the nanophase material is placed into the mold in a powdered form, then heated so that the grains form a solid mass. Nanophase crowns and bridges should generally be formed in one piece, but the upper surface of a nanophase prosthetic will usually be covered with porcelain or another non-nanophase material.