Tooth Color Formation Under the Influence of the Microcirculatory Bed of Pulp
Results of studying of influence of red color of a pulp on formation of shades of tooth of patients of different age groups are given in article. It is shown that process of reflection of light from a pulp and formation of color of tooth is influenced by several factors: degree of a mineralization of enamel and dentine; expressiveness of degradation of a pulp and sizes of a cavity of tooth; thickness of solid fabrics. Shades of color of tooth are defined by set of his optical characteristics including reflection, transmission, dispersion of light and fluorescent properties. Light reflected from a pulp influences formation of shades of color of tooth what the shift of values of coefficients of diffusion reflection of teeth at imitation of a pulp to the long-wave area of a range corresponding to red-brown shades testifies to. Such changes are most characteristic of teeth of patients of an average (26-44 years) and the senior (45-60 years) of age. For these age groups coefficients of diffusion reflection have the return linear correlation communication with the sizes of a cavity and a vestibular wall of tooth. Results of the conducted research on studying of influence of a pulp on parameters of reflection of light from the surface of teeth of patients of different age have not only scientific novelty, but also the practical importance. On their basis the way of production of a correcting color veneer with reconstruction of color of a pulp is developed.