Abstract: The invention relates to a method and a preparation for cleaning tooth root surfaces and surrounding tissue (periodontal pockets). The preparation is a two-component liquid of the type that has previously been used for chemical-mechanical treatment of carious lesion. The active component in the liquid is a hypochlorite, preferably sodium hypochlorite, and the other component in the liquid is a component which reduces the aggressiveness of the hypochlorite on healthy tissue and which also increases the viscosity of the liquid. The preparation is applied on the tooth root surface in question by means of a brush or an applicator instrument. After 10-15 seconds the root surface is cleaned by means of a scraping instrument.

Abstract: The invention relates to a preparation for use in chemical-mechanical treatment of caries in the form of a two-component caries dissolving liquid in which one of the components consists of sodium hypochlorite and the other component of a substance with the ability to reduce the aggressive influence of sodium hypochlorite on mucous membranes. The other component is a gel component which consists of a gel substance without any amino acids or a gel substance mixed with one or more amino acids.

Abstract: The invention relates to a dental instrument for removing carious dentine in connection with chemical-mechanical treatment of caries by means of a caries-dissolving solution applied to the caries for loosening the carious tissue. The instrument comprises at least one non-rotating tool-head (4, 5) for manually scraping away the loosened carious dental material. The tool head is star-shaped with a number of scraping edges (6) having a curved outer contour (periphery) for excavating loosened carious dental material in connection with said treatment method. The scraping edges (6) are designed to scrape in different directions, the bottom parts as well as the sides (peripheral parts) of a tooth cavity. The open spaces (9) formed between the scraping edges (6) admit transport by the instrument of drops of the solution used for the chemical-mechanical treatment method up to the carious tooth site.