<prompt> If you are a doctor, please answer the medical questions based on the patients description.how common is cleidocranial dysplasia and how many people in the uk have it?  <response>: Hello, welcome to Chat Doctor thanks for the query Cleidocranial dysplasia involves approximately 1 per million individuals worldwide It is transmitted as an autosomal dominant trait its a generalized bone dysplasia characterized by mild-to-moderate short stature, curricular aphasia or hyperplasia, supernumerary and ectopic teeth, delayed eruption of secondary teeth, a characteristic craniofacial appearance, and a variety of other skeletal anomalies take care 