[Assessment of the condition of the parodontium in children undergoing maxillary-orthopaedic treatment with reference to malocclusion, groups of teeth and duration of treatment with orthodontic devices].

The condition of the parodontium was studied in 281 children. Group I comprised children with malocclusion treated by maxillary orthopaedic methods, group II--children with non-treated malocclusion, group III--children with normal occlusion. The condition of the parodontium was assessed in various types of malocclusion, in groups of teeth and in relation to the duration of treatment with maxillary-orthopaedic devices.