Tooth enamel, dentin tubules

Tooth enamel is the highly mineralized, acellular tissue forming the outermost surface of the tooth crown and is the hardest substance in the human body, providing major protection against physical and chemical wear[2][1][9]. Beneath the enamel is dentin—a calcified connective tissue containing numerous microscopic dentin tubules, which extend from the pulp to the outer surface under the enamel[3][5][2]. Dentin tubules transmit sensory signals such as pain and temperature changes to the tooth nerve, explaining why exposed dentin is associated with tooth sensitivity[3][8][5]. These tissues play key roles in protecting the inner tooth, providing structural support, and mediating sensations, but they do not correspond to druggable molecular targets in a usual sense. Key context: - **Tooth enamel** is not a receptor, enzyme, or protein, but a mineralized tissue mainly composed of hydroxyapatite[1][2]. - **Dentin tubules** are anatomical channels in the dentin, not molecular entities, though they can be blocked or influenced by dental treatments[3][5][8]. This entry does not map to a canonical molecular target or receptor and should not be indexed as such in a therapeutic target database.

Other names

EnamelDentin tubulesTooth hard tissues

Remineralization (fluoride, enhances enamel resistance); Tubule occlusion (desensitizing treatments plug dentin tubules to decrease sensitivity).