Treatment of Mandibular Overjet in Children With Maxillary Retrognathism

Condition(s) studied

Investigational drug(s) / intervention(s)

Interceptive treatment: Control

Study summary

The project involves a 10-year prospective longitudinal cohort multicentre study where orthodontic treatment and treatment effect is followed in children with Cl III due to maxillary retrognathia who undergo standardized orthodontic interceptive treatment. Standard clinical procedures are followed as usual at each clinic where standard diagnostic and follow up materials are taken before treatment, after treatment and follow ups after 5 and 10 years. The project will not introduce or test new treatment modalities, additional procedures or behavioural regulation in relation to normal clinical practice or new medical devices. The standard diagnostic and follow up materials in each clinic include examination of the dentition, occlusion, craniofacial morphology, and orofacial function. The analyses are based on the following standardized registration methods which are carried out on all the patients. Information from the patient record is included.

The patient related outcome measurements will be assessed by five different questionnaires. No biological material is collected for the project.

Eligibility

Primary outcome measure(s)

• Change in sagittal maxillary skeletal position — Baseline (mixed dentition) to young adulthood, up to 10 years.
  Sagittal maxillary skeletal position will be assessed using standardized lateral cephalometric radiographs. Cephalometric measurements reflecting anterior (mesial) displacement of the maxilla will be obtained at baseline during the mixed dentition stage and at follow-up in young adulthood. Changes in maxillary position will be compared among participants receiving different interceptive orthodontic treatments and untreated controls.

Trial sites (3)

Other trials for the same condition