Prediction of the individual response to treatment of skeletal Class III malocclusions and their long-term stability. A Case Report.

Abstract

Abstract. Predicting the outcome of the treatment and its stability over time is an invaluable tool for the clinician when initiating therapy for correction of class III skeletal malocclusions. This work reports the predicted response to treatment of a 5-year-old female patient with skeletal Class III malocclusion and its long-term stability. The individual prediction cephalometric model of Baccetti and Franchi was applied in this case. As a result of the predictive equation, an in-dividual value of -0.958 was obtained (norm = -0.4065), which predicted a “very good response to treatment”. The Class III malocclusion and anterior crossbite were corrected, and the profile was harmonized with rapid maxillary expansion (RME) and a facemask projecting the maxilla forward 12 mm, in addition to the mandible’s 9° total downward rotation. After 15 years and three months of com-pleting the treatment, the stability of the results was confirmed. In conclusion, the individual prediction cephalometric model used in this case report allowed us to accurately predict the results in facial, skeletal and dental changes and the long-term stability of the treatment of class III skeletal malocclusion.