1. Volumetric changes of the nose and nasal airway 2 years after tooth-borne and bone-borne surgically assisted rapid maxillary expansion.
- Author
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Nada RM, van Loon B, Schols JG, Maal TJ, de Koning MJ, Mostafa YA, and Kuijpers-Jagtman AM
- Subjects
- Adolescent, Adult, Cephalometry, Cohort Studies, Cone-Beam Computed Tomography, Female, Humans, Imaging, Three-Dimensional, Male, Maxilla diagnostic imaging, Maxilla surgery, Nose diagnostic imaging, Prospective Studies, Malocclusion therapy, Maxilla abnormalities, Nose anatomy & histology, Osteogenesis, Distraction methods, Palatal Expansion Technique instrumentation, Tooth diagnostic imaging
- Abstract
This study aimed to assess the effects of bone-borne and tooth-borne surgically assisted rapid maxillary expansion on the volumes of the nose and nasal airway 2 yr after maxillary expansion. This prospective cohort study included 32 patients with transverse maxillary hypoplasia. Expansion was performed with a tooth-borne distractor (Hyrax) in 19 patients and with a bone-borne distractor [transpalatal distractor (TPD)] in the remaining 13. Cone beam computed tomography scans and three-dimensional (3D) photographs of the face were acquired before treatment and 22 ± 7 months later, and were used to evaluate the volumes of the nose and nasal airway. Nasal volume increased by 1.01 ± 1.6% in the Hyrax group and by 2.39 ± 2.4% in the TPD group. Nasal airway volume increased by 9.7 ± 5.6% in the Hyrax group and by 12.9 ± 12.7% in the TPD group. Changes in the nasal volume and in the nasal airway volume between the pre- and post-treatment measurements were statistically significant, whereas differences between the treatment groups were not; 22 months after surgically assisted rapid maxillary expansion, the increases in the nasal volume and in the nasal airway volume were comparable between tooth-borne and bone-borne devices., (© 2013 Eur J Oral Sci.)
- Published
- 2013
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