West China Journal of Stomatology ›› 2019, Vol. 37 ›› Issue (5): 533-536.doi: 10.7518/hxkq.2019.05.015

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Comparing the effects of fast and slow expansion on nasal cavity and maxilla structure

Liu Junling1(),Li Hongfa2,Yan Hui1   

  1. 1. Tianjin Nankai Hospital, Tianjin 300000, China
    2.Stomatological Hospital, Tianjin Medical University, Tianjin 300000, China
  • Received:2019-07-01 Revised:2019-08-13 Online:2019-10-01 Published:2019-10-15
  • Contact: Junling Liu E-mail:493757935@qq.com

Abstract:

Objective This study aims to compare the effects of fast and slow expansion on nasal cavity structure. Methods A total of 40 patients were selected and randomly divided into two groups. Cone-beam computer tomography (CBCT) was obtained before and after surgery and used for comparing the changes in nasal structure before and after treatment. Results Fast expansion had resulted in greater changes in the basilar and nasal bone arch extension structures than slow expansion. No significant difference at maxillary width and nasal parenchyma. Conclusion Rapid expansion therapy has more beneficial effects on nasal function.

Key words: fast expansion, slow expansion, nasal cavity, cone-beam computer tomography, nasal ventilation

CLC Number: