A tooth is a heterogeneously structured object of translucent materials, such as enamel and dentin. The correct simulation of the appearance of teeth is useful in the field of dental restoration to detect the correct color and to develop materials for restoration. However, conventional surface reflection models do not capture the appearance of translucent materials accurately, because they assume that the rays of light are just reflected off the surface. For translucent objects, light not only bounces off the surface, but also interacts with the material under the surface. Therefore, physically correct rendering of teeth must take this into account to understand and model subsurface scattering. This paper discusses the optical characteristics of enamel and dentin. In addition, rendered images using volume photon mapping with Monte Carlo photon tracing are presented for enamel, dentin and biomaterials.