Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up
Abstract Background This study evaluated the pharyngeal airway space changes up to 1 year after bilateral sagittal split osteotomy mandibular setback surgery and bimaxillary surgery with maxillary posterior impaction through three-dimensional computed tomography analysis. Methods A total of 37 patie...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-08-01
|
| Series: | Maxillofacial Plastic and Reconstructive Surgery |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40902-021-00319-1 |
| _version_ | 1818358239634391040 |
|---|---|
| author | No Eul Kang Dae Hun Lee Ja In Seo Jeong Keun Lee Seung Il Song |
| author_facet | No Eul Kang Dae Hun Lee Ja In Seo Jeong Keun Lee Seung Il Song |
| author_sort | No Eul Kang |
| collection | DOAJ |
| description | Abstract Background This study evaluated the pharyngeal airway space changes up to 1 year after bilateral sagittal split osteotomy mandibular setback surgery and bimaxillary surgery with maxillary posterior impaction through three-dimensional computed tomography analysis. Methods A total of 37 patients diagnosed with skeletal class III malocclusion underwent bilateral sagittal split osteotomy setback surgery only (group 1, n = 23) or bimaxillary surgery with posterior impaction (group 2, n = 14). Cone-beam computed tomography scans were taken before surgery (T0), 2 months after surgery (T1), 6 months after surgery (T2), and 1 year after surgery (T3). The nasopharynx (Nph), oropharynx (Oph), hypopharynx (Hph) volume, and anteroposterior distance were measured through the InVivo Dental Application version 5. Results In group 1, Oph AP, Oph volume, Hph volume, and whole pharynx volume were significantly decreased after the surgery (T1) and maintained. In group 2, Oph volume and whole pharynx volume were decreased (T2) and relapsed at 1 year postoperatively (T3). Conclusion In class III malocclusion patients, mandibular setback surgery only showed a greater reduction in pharyngeal airway than bimaxillary surgery at 1 year postoperatively, and bimaxillary surgery was more stable in terms of airway. Therefore, it is important to evaluate the airway before surgery and include it in the surgical plan. |
| first_indexed | 2024-12-13T20:25:51Z |
| format | Article |
| id | doaj.art-ffc7d93596f74561b0f7d1512ed9cd88 |
| institution | Directory Open Access Journal |
| issn | 2288-8586 |
| language | English |
| last_indexed | 2024-12-13T20:25:51Z |
| publishDate | 2021-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Maxillofacial Plastic and Reconstructive Surgery |
| spelling | doaj.art-ffc7d93596f74561b0f7d1512ed9cd882022-12-21T23:32:34ZengSpringerOpenMaxillofacial Plastic and Reconstructive Surgery2288-85862021-08-014311910.1186/s40902-021-00319-1Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-upNo Eul Kang0Dae Hun Lee1Ja In Seo2Jeong Keun Lee3Seung Il Song4Department of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of MedicineDepartment of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of MedicineDepartment of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of MedicineDepartment of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of MedicineDepartment of Oral and Maxillofacial Surgery, Institute of Oral Health Science, Ajou University School of MedicineAbstract Background This study evaluated the pharyngeal airway space changes up to 1 year after bilateral sagittal split osteotomy mandibular setback surgery and bimaxillary surgery with maxillary posterior impaction through three-dimensional computed tomography analysis. Methods A total of 37 patients diagnosed with skeletal class III malocclusion underwent bilateral sagittal split osteotomy setback surgery only (group 1, n = 23) or bimaxillary surgery with posterior impaction (group 2, n = 14). Cone-beam computed tomography scans were taken before surgery (T0), 2 months after surgery (T1), 6 months after surgery (T2), and 1 year after surgery (T3). The nasopharynx (Nph), oropharynx (Oph), hypopharynx (Hph) volume, and anteroposterior distance were measured through the InVivo Dental Application version 5. Results In group 1, Oph AP, Oph volume, Hph volume, and whole pharynx volume were significantly decreased after the surgery (T1) and maintained. In group 2, Oph volume and whole pharynx volume were decreased (T2) and relapsed at 1 year postoperatively (T3). Conclusion In class III malocclusion patients, mandibular setback surgery only showed a greater reduction in pharyngeal airway than bimaxillary surgery at 1 year postoperatively, and bimaxillary surgery was more stable in terms of airway. Therefore, it is important to evaluate the airway before surgery and include it in the surgical plan.https://doi.org/10.1186/s40902-021-00319-1Mandibular setback surgeryBimaxillary surgeryClass III malocclusionPharyngeal airwayCBCT |
| spellingShingle | No Eul Kang Dae Hun Lee Ja In Seo Jeong Keun Lee Seung Il Song Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up Maxillofacial Plastic and Reconstructive Surgery Mandibular setback surgery Bimaxillary surgery Class III malocclusion Pharyngeal airway CBCT |
| title | Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up |
| title_full | Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up |
| title_fullStr | Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up |
| title_full_unstemmed | Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up |
| title_short | Postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class III patients: 1-year follow-up |
| title_sort | postoperative changes in the pharyngeal airway space through computed tomography evaluation after mandibular setback surgery in skeletal class iii patients 1 year follow up |
| topic | Mandibular setback surgery Bimaxillary surgery Class III malocclusion Pharyngeal airway CBCT |
| url | https://doi.org/10.1186/s40902-021-00319-1 |
| work_keys_str_mv | AT noeulkang postoperativechangesinthepharyngealairwayspacethroughcomputedtomographyevaluationaftermandibularsetbacksurgeryinskeletalclassiiipatients1yearfollowup AT daehunlee postoperativechangesinthepharyngealairwayspacethroughcomputedtomographyevaluationaftermandibularsetbacksurgeryinskeletalclassiiipatients1yearfollowup AT jainseo postoperativechangesinthepharyngealairwayspacethroughcomputedtomographyevaluationaftermandibularsetbacksurgeryinskeletalclassiiipatients1yearfollowup AT jeongkeunlee postoperativechangesinthepharyngealairwayspacethroughcomputedtomographyevaluationaftermandibularsetbacksurgeryinskeletalclassiiipatients1yearfollowup AT seungilsong postoperativechangesinthepharyngealairwayspacethroughcomputedtomographyevaluationaftermandibularsetbacksurgeryinskeletalclassiiipatients1yearfollowup |