Demographic, clinical, and radiological characteristics of cleidocranial dysplasia: A systematic review of cases reported in south America

•About 70% of patients are diagnosed during childhood or adolescence, mostly due to dental complications.•Clavicular dysplasia, open fontanel, dental abnormalities, and facies typical of CCD are present in at least 80% of cases.•The prevalence of CCD signs in the South American population is similar to other patient groups from other populations.