Most commonly affects patients in their permanent dentition. It may also appear in primary teeth however, its incidence rate is significantly lower. Some studies indicate that<unk>  is not more common in any gender however, other studies indicate that incidence rate is more common in females than males with a ratio of 1:6. There are reports of a 0.53% for this to occur on the two front teeth of the upper jaw. In a study conducted on the adult population in Croatia, the most common teeth to experience<unk>  were the lower jaw's 3rd molars with a whopping 24.1%. Next was the upper jaw's first, second and third molars at 15.3%,11.4% and 8.1% incidence rate respectively.
Dilaceration
Nipple discharge
Inspissation
Retroperitoneal fibrosis
Pneumatosis
Ileosigmoid knot
Pulp stone
Needle remover