Abstract: Provided herein are novel compositions for the restoration of demineralized tissues, such as dentin which has been demineralized by tooth decay. The remineralization agent comprises a bioactive ceramic component and a polyanionic macromolecular component, which may be admixed and applied to the target tissue and which will subsequently set to produce a remineralizing solid. The remineralizing solid will produce nanodroplets of mineral precursor solution, which such nanodroplets can infiltrate demineralized collagen matrices and which will form hydroxyapatite crystals therein by polymer-induced liquid precursor processes. The scope of the invention encompasses novel compositions and methods of treating demineralized tissues.

Abstract: A method of making a high quality three-dimensional photograph is disclosed. The method utilizes a camera with a film mount therein, a rastor, a film, a separator for keeping the line rastor separate from the film, and a vacuum generating device for maintaining a vacuum in the vicinity of the separator thereby bringing the film into intimate contact with the separator and maintaining the intimate contact through successive exposures and movements of the film and line rastor. After repeated exposure of the film in various positions with respect to the subject being photographed, the film and rastor are laminated to opposing sides of the separator and the resulting photograph is viewed from the rastor-carrying side of the photograph by means of a light source and diffusion screen on the film-carrying side of the photograph.

Abstract: A method of making a high quality three-dimensional photograph is disclosed. The method utilizes a camera with a film mount therein, a rastor, a film, a separator for keeping the line rastor separate from the film, and a vacuum generating device for maintaining a vacuum in the vicinity of the separator thereby bringing the film into intimate contact with the separator and maintaining the intimate contact through successive exposures and movements of the film and line rastor. After repeated exposure of the film in various positions with respect to the subject being photographed, the film and rastor are laminated to opposing sides of the separator and the resulting photograph is viewed from the rastor-carrying side of the photograph by means of a light source and diffusion screen on the film-carrying side of the photograph.