Cross-bite

Retinoblastoma is an intraocular cancer of infancy and childhood, which has been treated with radia‑ tion therapy and chemotherapy. Radiation on growing patients can cause deterioration in maxillofacial growth and development that leads to severe skeletal discrepancies between the maxilla and mandible, and dental problems such as crossbite, openbite, and hypodontia.

9p videadpool 05-05-2023 3 2   Download

The deviation and misalignment of teeth and jaw can lead to Angle’s Class I malocclusion (division 3 and 4 according to Anderson) and Angle’s Class III malocclusion. It causes anterior or posterior cross bite with a relatively high proportion. The proportion of patients with Angle’s Class I malocclusion (division 3 and 4 according to Anderson) and Angle’s Class III malocclusion due to the combination of maxillary laterally deficiency and mandibular prognathism varies in races and residential areas.

9p visusanwojcicki 22-06-2022 23 2   Download