<unk> is not an abnormality which occurs abruptly during adulthood, rather, it happens while the teeth grow. Causes of<unk> are still under research and an area of study within pediatric dentistry. Commonly, however,<unk> is associated with genetic syndromes such as otodental syndrome, insulin-resistant diabetes, facial hemihyperplasia, KGB syndrome, Ekman-Westborg-Julian syndrome, and 47 XYY syndrome. Researchers note that genetic mutations which regulate tooth growth could cause teeth to grow abnormally. Some of these genetic conditions associated with this disease are also related with hormonal imbalances and are likely related to the pituitary gland, resulting in deviant tooth growth. In addition, factors during early childhood have been shown to play a significant role in the development of<unk>  diet, exposure to toxins or radiation and other environmental factors increase the likelihood of<unk> growth.
Macrodontia 
Spotted lunulae
Amastia
Macrotia
Macrostomia
Acrania
Microcoria
Leonine facies