OBJECTIVE: The purpose of this study was to assess the influence of rapid maxillary expansion (RME) on orbital volume and aperture width measurements by using freeware software with DICOM data from low-dose-protocol multidetector computerized tomography (MDCT). STUDY DESIGN: The subjects consisted of 30 patients (12 male, 18 females) treated with a Hyrax Palatal Expander, activated 3 times per day (0.25 mm per turn of the screw) for an average of 18 days. Low-dose MDCT was performed immediately before (T1) and after (T2) treatment. DICOM data was exported into the open-source OsiriX Medical Imaging software (www.osirix-viewer.com), the data reoriented to a standard projection, and then orbital volumetric and maximum aperture measurements performed. RESULTS: Orbital mean volumes increased significantly from 18.81 ± 1.23 cm(3) (T1) to 19.53 ± 1.26 cm(3) (T2). Orbital aperture width also increased significantly from 36.02 ± 1.24 mm (T1) to 37.11 ± 1.01 mm (T1). CONCLUSIONS: RME produces small but significant increases in orbital dimensions. However, RME does not produce drastic changes of the normal architecture of the orbital bones and is unlikely to alter the normal anatomy of the face.
OBJECTIVE: The purpose of this study was to assess the influence of rapid maxillary expansion (RME) on orbital volume and aperture width measurements by using freeware software with DICOM data from low-dose-protocol multidetector computerized tomography (MDCT). STUDY DESIGN: The subjects consisted of 30 patients (12 male, 18 females) treated with a Hyrax Palatal Expander, activated 3 times per day (0.25 mm per turn of the screw) for an average of 18 days. Low-dose MDCT was performed immediately before (T1) and after (T2) treatment. DICOM data was exported into the open-source OsiriX Medical Imaging software (www.osirix-viewer.com), the data reoriented to a standard projection, and then orbital volumetric and maximum aperture measurements performed. RESULTS: Orbital mean volumes increased significantly from 18.81 ± 1.23 cm(3) (T1) to 19.53 ± 1.26 cm(3) (T2). Orbital aperture width also increased significantly from 36.02 ± 1.24 mm (T1) to 37.11 ± 1.01 mm (T1). CONCLUSIONS: RME produces small but significant increases in orbital dimensions. However, RME does not produce drastic changes of the normal architecture of the orbital bones and is unlikely to alter the normal anatomy of the face.
Authors: Chiara Vompi; Emanuela Serritella; Gabriella Galluccio; Santino Pistella; Alessandro Segnalini; Luca Giannelli; Carlo Di Paolo Journal: J Int Soc Prev Community Dent Date: 2020-08-06
Authors: Luca Cerritelli; Stavros Hatzopoulos; Andrea Catalano; Chiara Bianchini; Giovanni Cammaroto; Giuseppe Meccariello; Giannicola Iannella; Claudio Vicini; Stefano Pelucchi; Piotr Henryk Skarzynski; Andrea Ciorba Journal: J Clin Med Date: 2022-09-05 Impact factor: 4.964