Changes in Nasal Function after Le Fort Ⅰ Osteotomy

Le Fort osteotomy affects nasal functions, including breathing and olfaction.Anterior or and antero-superior repositioning by Le Fort I osteotomy tends to improve nasal function.While superior movement tends to improve nasal function, larger superior repositioning reduces nasal function.Although posterior or posterosuperior repositioning of the maxilla has been reported infrequently, it may have a negative impact on nasal function.For larger superior or postero-superior movement, horseshoe osteotomy or inferior turbinate resection should be considered.In surgical orthodontic treatment, it is important to avoid negative impacts on nasal function when planning treatment and performing surgery.Although nasal and paranasal sinus complications after Le Fort osteotomy are rare, it is necessary to take preventive measures and obtain informed consent.