THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE
Purpose: The aims of this retrospective study were to evaluate the possible changes in soft tissue facial profile induced by orthopedic rapid maxillary expansion (RME) and surgically assisted rapid maxillary expansion (SARME), and to correlate them with the underlying hard tissue alterations. Mater...
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| Format: | Article |
| Language: | English |
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Istanbul University
2017-10-01
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| Series: | Journal of Istanbul University Faculty of Dentistry |
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| Online Access: | http://www.journals.istanbul.edu.tr/iudis/article/view/5000192112/5000182926 |
| _version_ | 1797918026153066496 |
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| author | Işıl ARAS Sultan ÖLMEZ Mehmet Cemal AKAY Tayfun GÜNBAY Aynur ARAS |
| author_facet | Işıl ARAS Sultan ÖLMEZ Mehmet Cemal AKAY Tayfun GÜNBAY Aynur ARAS |
| author_sort | Işıl ARAS |
| collection | DOAJ |
| description | Purpose: The aims of this retrospective study were to evaluate the possible changes in soft tissue facial profile induced by orthopedic rapid maxillary expansion (RME) and surgically assisted rapid maxillary expansion (SARME), and to correlate them with the underlying hard tissue alterations.
Materials and Methods: 16 patients who received bone borne SARME and 25 patients who were subjected to RME using metal cast splint hyrax appliance were analyzed retrospectively. This research was conducted on lateral cephalometric radiographs taken on 2 occasions: before expansion (T1) and at the beginning of any further orthodontic treatment (T2). Investigated lateral cephalometric parameters consisted of Holdaway soft tissue measurements with some supplementary soft tissue, skeletal and dental assessments.
Results: The acquisition of T2 cephalograms which conforms to the initiation of further orthodontic treatment corresponded to 83.25±3.51 days for SARME and 85.68±4.37 days for RME after the expansion was completed. The only significant change in soft tissue profile of the SARME group was a decrease in upper lip thickness (p<0.05), whereas in the RME group, decrease in soft tissue facial profile angle and increase in H angle were found to be statistically significant (p<0.05 for each). For the RME group, the changes in soft tissue facial profile angle and H angle correlated only with the changes in SNB angle (p<0.05).
Conclusion: While bone-borne SARME did not seem to possess the potential to alter soft tissue profile, tooth-borne RME caused a more convex soft tissue profile related to a reduction in SNB. |
| first_indexed | 2024-04-10T13:22:51Z |
| format | Article |
| id | doaj.art-b9785b3fed014f8bb70a550a03ecf62a |
| institution | Directory Open Access Journal |
| issn | 2149-2352 2149-4592 |
| language | English |
| last_indexed | 2024-04-10T13:22:51Z |
| publishDate | 2017-10-01 |
| publisher | Istanbul University |
| record_format | Article |
| series | Journal of Istanbul University Faculty of Dentistry |
| spelling | doaj.art-b9785b3fed014f8bb70a550a03ecf62a2023-02-15T16:11:59ZengIstanbul UniversityJournal of Istanbul University Faculty of Dentistry2149-23522149-45922017-10-0151311010.17096/jiufd.85884THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILEIşıl ARAS0Sultan ÖLMEZ1Mehmet Cemal AKAY2Tayfun GÜNBAY3Aynur ARAS4Department of Orthodontics Faculty of Dentistry Ege UniversityPrivate Practice, Dentege ADSMDepartment of Oral and Maxillofacial Surgery Faculty of Dentistry Ege UniversityDepartment of Oral and Maxillofacial Surgery Faculty of Dentistry Ege UniversityDepartment of Orthodontics Faculty of Dentistry Ege UniversityPurpose: The aims of this retrospective study were to evaluate the possible changes in soft tissue facial profile induced by orthopedic rapid maxillary expansion (RME) and surgically assisted rapid maxillary expansion (SARME), and to correlate them with the underlying hard tissue alterations. Materials and Methods: 16 patients who received bone borne SARME and 25 patients who were subjected to RME using metal cast splint hyrax appliance were analyzed retrospectively. This research was conducted on lateral cephalometric radiographs taken on 2 occasions: before expansion (T1) and at the beginning of any further orthodontic treatment (T2). Investigated lateral cephalometric parameters consisted of Holdaway soft tissue measurements with some supplementary soft tissue, skeletal and dental assessments. Results: The acquisition of T2 cephalograms which conforms to the initiation of further orthodontic treatment corresponded to 83.25±3.51 days for SARME and 85.68±4.37 days for RME after the expansion was completed. The only significant change in soft tissue profile of the SARME group was a decrease in upper lip thickness (p<0.05), whereas in the RME group, decrease in soft tissue facial profile angle and increase in H angle were found to be statistically significant (p<0.05 for each). For the RME group, the changes in soft tissue facial profile angle and H angle correlated only with the changes in SNB angle (p<0.05). Conclusion: While bone-borne SARME did not seem to possess the potential to alter soft tissue profile, tooth-borne RME caused a more convex soft tissue profile related to a reduction in SNB.http://www.journals.istanbul.edu.tr/iudis/article/view/5000192112/5000182926Maxillary expansionpalatal expansion techniqueslateral cephalometrysoft tissue profileorthognathic surgery |
| spellingShingle | Işıl ARAS Sultan ÖLMEZ Mehmet Cemal AKAY Tayfun GÜNBAY Aynur ARAS THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE Journal of Istanbul University Faculty of Dentistry Maxillary expansion palatal expansion techniques lateral cephalometry soft tissue profile orthognathic surgery |
| title | THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE |
| title_full | THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE |
| title_fullStr | THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE |
| title_full_unstemmed | THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE |
| title_short | THE EFFECTS OF MAXILLARY EXPANSION ON THE SOFT TISSUE FACIAL PROFILE |
| title_sort | effects of maxillary expansion on the soft tissue facial profile |
| topic | Maxillary expansion palatal expansion techniques lateral cephalometry soft tissue profile orthognathic surgery |
| url | http://www.journals.istanbul.edu.tr/iudis/article/view/5000192112/5000182926 |
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