scholarly journals Evaluation of the facial soft tissue changes in skeletal anterior open bite patients treated with rapid molar intruder appliance using cone beam computed tomography

2020 ◽  
Vol 66 (4) ◽  
pp. 1915-1922
Author(s):  
Ahmed Sh. Hashem ◽  
Shareef ِِِِAlhindi ◽  
Wael M. Refai
2018 ◽  
Vol 4 (4) ◽  
pp. 1245-1250 ◽  
Author(s):  
Ahmed AL-Omar ◽  
Usama AL-Dakroroy

The objective of this study was to evaluate the soft tissue changes after anterior maxillary osteotomy using cone beam computed tomography. The study included twelve patients diagnosed as suffering from an excess of the anterior part of maxilla and required surgical correction by anterior maxillary osteotomy. Assessment of Cone beam computed tomography in evaluation the soft tissue changes. All cases subjected to anterior maxillary osteotomy using modified Cuper technique. Follow up of cases was does clinically and radio- graphically by cone beam computed tomography. The results of the study proved that the statistically significant increase in mean Nasolabial angle after 6 months was 5.2 degrees, the mean value of nasal width after 6 months was 0,9mm. The mean value of Philtrum length was 3.3mm. In conclusion, Cone Beam Computed Tomography can be used to obtain dimensionally accurate linear and angular measurement from bony maxillofacial structure and landmarks and allows accurate, three-dimensional imaging of hard and soft tissues.


2010 ◽  
Vol 137 (4) ◽  
pp. S86-S93 ◽  
Author(s):  
Michael S. Ryckman ◽  
Steven Harrison ◽  
Don Oliver ◽  
Christian Sander ◽  
Andrew A. Boryor ◽  
...  

2017 ◽  
Vol 47 (4) ◽  
pp. 241 ◽  
Author(s):  
Piyadanai Suteerapongpun ◽  
Supassara Sirabanchongkran ◽  
Tanapan Wattanachai ◽  
Patiyut Sriwilas ◽  
Dhirawat Jotikasthira

2020 ◽  
Author(s):  
Hieu Nguyen ◽  
Jeong Won Shin ◽  
Hai-Van Giap ◽  
Ki Beom Kim ◽  
Hwa Sung Chae ◽  
...  

Abstract Background The aim of this study was to assess the mid-facial soft tissue changes induced by a micro-implant-supported maxillary skeletal expander in late adolescents and young adults by cone-beam computerized tomography and the correlations between hard and soft tissue changes after expansion with maxillary skeletal expander.Subjects and methods Twenty patients with maxillary transverse deficiency treated with maxillary skeletal expander were selected. Cone-beam computerized tomography images taken before and after expansion were superimposed to measure the changes in soft and hard tissue landmarks.Results Anterior nasal spine, posterior nasal spine, and alveolar bone width were significantly increased after expansion with maxillary skeletal expander (p < 0.05). The average lateral movement of the cheek points was 1.13 ± 0.33 mm (left) and 1.41 ± 0.39 mm (right), while that of the alar curvature points was 1.07 ± 0.72 mm (left) and 1.06 ± 0.68 (right) (p < 0.05). The average forward displacement of the cheek points was 0.42 ± 0.66 mm (left) and 0.60 ± 0.58 mm (right), whereas that of the alar curvature points was 0.80 ± 0.67 mm (left) and 0.68 ± 0.56 mm (right) side (p < 0.05). The average downward movement of the subnasale was 0.40 ± 0.37 mm (p < 0.05). The changes in cheek points and alar curvature points on both sides significantly correlated with hard-tissue changes (p < 0.05).Conclusions Maxillary expansion using maxillary skeletal expander resulted in significant lateral and forward movement of soft tissues of the cheek and alar curvature points on both sides and correlated with the maxillary suture opening at the anterior and posterior nasal spines.


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