[The interesting case. 6-year follow-up of a patient with atypical root length of various teeth]

Six-year observations of a female patient (13 years of age at treatment beginning) in whom the roots of certain teeth were extremely short (the causes of which being unknown) revealed no changes in the degree of resorption and so further root resorptions. The growth of the roots of these teeth (which had not fully developed at treatment beginning) progressed without disturbances. The author is of opinion that these atypical root lengths are sequelae of a temporary disturbance of the process of growth, the causes of which are unknown.