If an extra tooth germ develops, a supernumerary tooth will form. If the tooth germ should take on an unusual morphologic configuration, the developing tooth will be of an unusual shape. If ameloblasts lose their normal function temporarily, because of a systemic disturbance affecting the child, there will be bands of hypoplastic or detective enamel formed during that period of time. The entire dentition may develop with defective enamel or dentin if genetic disease impairs the function of ameloblasts or odontoblasts amelogenesis imperfecta, dentinogenesis imperfect. Dermatology Billing Services . will help you to do collections and also the pending amounts from the patients.