Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Single upper central incisor ?
    ### Response:
    What are the signs and symptoms of Single upper central incisor? The Human Phenotype Ontology provides the following list of signs and symptoms for Single upper central incisor. If the information is available, the table below includes how often the symptom is seen in people with this condition.
    