What condition is characterized by multiple supernumerary teeth?

Gardner syndrome is characterized by the presence of multiple supernumerary teeth, along with other features such as osteomas, epidermoid cysts, and colorectal polyps. This genetic disorder is related to mutations in the APC gene, which leads to the development of benign tumors and an increased risk of colorectal cancer. The presence of supernumerary teeth in individuals with Gardner syndrome is a notable clinical manifestation and can have implications for dental treatment and management due to the potential for crowding and malalignment in the dentition.

The other conditions listed do not primarily focus on the presence of supernumerary teeth. Cleidocranial dysostosis, for instance, is associated with the underdevelopment of the clavicles and dental anomalies, but it is more known for delayed tooth eruption rather than for causing multiple additional teeth. Missing teeth syndrome relates to the absence of teeth rather than the presence of extra ones, and tooth agenesis specifically refers to the congenital absence of teeth.