Ramires Tatiana, Maia Roberto Alcântara, Barone José Roberto
Specialist in Buccomaxillofacial Surgery and Traumatology. Master's degree student in Health Sciences, Hospital do Servidor Público Estadual de São Paulo.
Doctor, otorhinolaryngologist, Hospital do Servidor Público Estadual de São Paulo.
Braz J Otorhinolaryngol. 2008 Sep-Oct;74(5):763-769. doi: 10.1016/S1808-8694(15)31388-4.
Mandibular cross-sectional deficiency is a dentofacial defect in connection with the narrowing of the mandibular arch width. This abnormality is a significant etiopathogenic factor and it is often associated with nasal breathing difficulties. This atresia may be treated through Rapid Maxillary Expansion or Surgically Assisted Rapid Maxillary Expansion, depending on the patient's age. Both procedures will change the craniofacial structure, especially the nasal cavity.
Based on literature review, the purpose of this paper was to report the relationship among maxillary expansion, nasal cavity and Nasal Airflow Resistance.
A non-systematic literary review was conducted in search of experimental studies to treat maxillary atresia. Papers considering Rapid Maxillary Expansion and Surgically Assisted Rapid Maxillary Expansion were included, whereas those using Maxillary Expansion through Segmented Osteotomy were excluded.
Rapid Maxillary Expansion and Surgically Assisted Rapid Maxillary Expansion cause dentofacial changes, especially in the nasal cavity. Consequently, the nose width enlarges, reducing Nasal Airflow Resistance.
Anteroposterior cephalometric studies show evidence of an enlarged nasal cavity following maxillary expansion.
下颌横截面缺损是一种与下颌弓宽度变窄相关的牙颌面缺陷。这种异常是一个重要的病因因素，并且常与鼻呼吸困难相关。这种闭锁可根据患者年龄通过快速上颌扩弓或外科辅助快速上颌扩弓进行治疗。两种方法都会改变颅面结构，尤其是鼻腔。
基于文献综述，本文旨在报告上颌扩弓、鼻腔和鼻气流阻力之间的关系。
进行了一项非系统性文献综述，以寻找治疗上颌闭锁的实验研究。纳入了考虑快速上颌扩弓和外科辅助快速上颌扩弓的论文，而排除了通过节段性截骨术进行上颌扩弓的论文。
快速上颌扩弓和外科辅助快速上颌扩弓会引起牙颌面变化，尤其是鼻腔的变化。因此，鼻宽增大，鼻气流阻力降低。
前后向头影测量研究表明上颌扩弓后鼻腔有扩大的证据。
