Enamel microporosity

Enamel microporosity refers to the microscopic spaces and voids within the highly mineralized hydroxyapatite structure of dental enamel. These porosities typically arise during the early stages of dental caries (demineralization) or due to developmental conditions like fluorosis and hypoplasia, leading to increased enamel permeability and the characteristic appearance of white spot lesions [1][2]. While not a biological receptor or enzyme, these pores are a significant clinical target for minimally invasive dentistry. Therapeutic interventions aim to either remineralize these spaces using ions like fluoride and calcium or to physically seal them using low-viscosity infiltrant resins to prevent further acid diffusion and bacterial ingress [3][4]. Resin infiltration specifically targets the pore volume to arrest lesion progression by creating a diffusion barrier within the enamel structure. Understanding the volume and distribution of these microporosities is essential for managing tooth decay and maintaining structural integrity. [1] Robinson, C., et al. (2000). "The chemistry of enamel caries." Critical Reviews in Oral Biology & Medicine. [2] Paris, S., & Meyer-Lueckel, H. (2010). "Inhibition of caries progression by resin infiltration in situ." Caries Research. [3] Featherstone, J. D. (2000). "The science and practice of caries prevention." Journal of the American Dental Association. [4] Meyer-Lueckel, H., & Paris, S. (2008). "Infiltration of natural caries lesions with experimental resins differing in penetration coefficients and ethanol addition." Caries Research.

Other names

Enamel poresSubsurface porositiesInter-crystalline spacesWhite spot lesions

Physical occlusion of pores via resin infiltration or chemical restoration of the mineral matrix through ion deposition (remineralization).