Proper orthodontic treatment in patients with excellent oral hygiene and the absence of significant periodontal disorders should not pose any significant periodontal risk. In the presence of poor oral hygiene, fixed orthodontic appliances and tooth movement can contribute to significant deleterious periodontal consequences. Teamwork among the family dentist, the periodontist and the orthodontist is essential during treatment planning and execution. A sample of 47 untreated children with Class II Division I, deep overbite malocclusions who declined orthodontic treatment, showed that on an average of 11.5 years later, the absence of orthodontic correction will not usually lead to measurable occlusal deterioration in the young adult. This study did not discuss traumatic injuries in these untreated children.
Posterior teeth are relatively unaffected.
Dilacerated maxillary laterals and pointed teeth in general, showed greater root resorption. Blunted teeth had less resorption. Adults have significantly more resorption than children in the mandibular anterior teeth only. Increased tooth length and overjet were correlated with greater root resorption for the maxillary anterior teeth. Asian patients had less root resorption than whites who had less resorption than hispanics.