Nasal cavity volume changes after rapid maxillary expansion in adolescents evaluated with 3-dimensional simulation and modeling programs

被引:39
|
作者
Gorgulu, Serkan [1 ]
Gokce, Sila Mermut [1 ]
Olmez, Huseyin [1 ]
Sagdic, Deniz [1 ]
Ors, Fatih [2 ]
机构
[1] Gulhane Mil Med Acad, Dent Sci Ctr, Dept Orthodont, TR-06018 Ankara, Turkey
[2] Gulhane Mil Med Acad, Dept Radiol, TR-06018 Ankara, Turkey
关键词
COMPUTED-TOMOGRAPHY; PALATAL EXPANSION; MORPHOLOGIC CHANGES; SKELETAL;
D O I
10.1016/j.ajodo.2010.12.020
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Introduction: The purpose of this study was to evaluate the effects of rapid maxillary expansion on nasal cavity volume by using 3-dimensional simulation and modeling programs. Methods: The study group consisted of 15 patients (9 boys, 6 girls; mean age, 13.86 years) with maxillary constriction. Computed tomography scans were obtained before treatment and 6 months after the end of expansion. All computed tomography data were transferred to a computer, and the nasal cavity and maxillary teeth were segmented by using the Mimics and Simplant Ortho software programs (both, Materialise, Leuven, Belgium). Paired samples t tests were used to compare pretreatment and posttreatment nasal cavity volumes and maxillary areas. Data analysis was performed by using the software program SPSS for Windows (version 15.00; SPSS, Chicago, Ill). Results: Rapid maxillary expansion treatment induced significant increases in nasal cavity volume (P <= 0.001) and maxillary transverse dimensions (P <= 0.001). Conclusions: Both anterior-to-posterior and coronal-to-cranial expansions were observed after rapid maxillary expansion treatment, with the direction of expansion most likely affected by resistance from the cranial bones. (Am J Orthod Dentofacial Orthop 2011;140:633-40)
引用
收藏
页码:633 / 640
页数:8
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