How It Forms
There are several causes as to how and why these conditions form. According to the Indian Journal of Dentistry, these conditions occur when there is a disturbance in the matrix formation of the teeth. To break that down, let’s look at ameloblasts, which are your teeth’s enamel-producing cells. These cells form in six stages: morphogenetic, organizing, formative, maturative, protective, and desmolytic. Enamel hypoplasia happens in the formation stage, resulting in the pitting, grooving, or even total absence of enamel. Hypomineralization happens in the maturative stage and can appear as “chalky” areas on your tooth’s enamel.
Beyond the scientific processes of enamel formation, these conditions occur due to hereditary and environmental factors. That could mean nutrition, diseases, premature birth, trauma, or infections.