Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin
Abstract Background The relationship between the lateral deviation of chin and the upper and middle facial third asymmetry is still controversial. The purpose of this study is to evaluate the correlation of upper and middle facial third asymmetry with lateral deviation of chin using 3-dimensional co...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2019-12-01
|
| Series: | Maxillofacial Plastic and Reconstructive Surgery |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40902-019-0241-1 |
| _version_ | 1818323994064977920 |
|---|---|
| author | Hyo-Won CHOI Bola KIM Jae-Young KIM Jong-Ki HUH Kwang-Ho PARK |
| author_facet | Hyo-Won CHOI Bola KIM Jae-Young KIM Jong-Ki HUH Kwang-Ho PARK |
| author_sort | Hyo-Won CHOI |
| collection | DOAJ |
| description | Abstract Background The relationship between the lateral deviation of chin and the upper and middle facial third asymmetry is still controversial. The purpose of this study is to evaluate the correlation of upper and middle facial third asymmetry with lateral deviation of chin using 3-dimensional computed tomography. The study was conducted on patients who underwent orthognathic surgery from January 2016 to August 2017. A total of 40 patients were included in this retrospective study. A spiral scanner was used to obtain the 3-dimensional computed tomography scans. The landmarks were assigned on the reconstructed 3-dimensional images, and their locations were verified on the axial, midsagittal, and coronal slices. The Pearson correlation analysis was performed to evaluate the correlation between chin deviation and difference between the measurements of distances in paired craniofacial structures. Statistical analysis was performed at a significance level of 5%. Results In mandible, the degree of chin deviation was correlated with the mandibular length and mandibular body length. Mandibular length and mandibular body length are shorter on the deviated-chin side compared to that on the non-deviated side (mandibular length, r = −0.897, p value < 0.001; mandibular body length, r = −0.318, p value = 0.045). In the upper and middle facial thirds, the degree of chin deviation was correlated with the vertical asymmetry of the glenoid fossa and zygonion. Glenoid fossa and zygonion are superior on the deviated-chin side than on the non-deviated side (glenoid fossa, r = 0.317, p value = 0.046; zygonion, r = 0.357, p value = 0.024). Conclusion Lateral deviation of chin is correlated with upper and middle facial third asymmetry as well as lower facial third asymmetry. As a result, treatment planning in patients with chin deviation should involve a careful evaluation of the asymmetry of the upper and middle facial thirds to ensure complete patient satisfaction. |
| first_indexed | 2024-12-13T11:21:32Z |
| format | Article |
| id | doaj.art-13dd7676815747bc817c6760f30ede31 |
| institution | Directory Open Access Journal |
| issn | 2288-8586 |
| language | English |
| last_indexed | 2024-12-13T11:21:32Z |
| publishDate | 2019-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Maxillofacial Plastic and Reconstructive Surgery |
| spelling | doaj.art-13dd7676815747bc817c6760f30ede312022-12-21T23:48:26ZengSpringerOpenMaxillofacial Plastic and Reconstructive Surgery2288-85862019-12-014111810.1186/s40902-019-0241-1Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chinHyo-Won CHOI0Bola KIM1Jae-Young KIM2Jong-Ki HUH3Kwang-Ho PARK4Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of DentistryDepartment of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of DentistryDepartment of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of DentistryDepartment of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of DentistryDepartment of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, Yonsei University College of DentistryAbstract Background The relationship between the lateral deviation of chin and the upper and middle facial third asymmetry is still controversial. The purpose of this study is to evaluate the correlation of upper and middle facial third asymmetry with lateral deviation of chin using 3-dimensional computed tomography. The study was conducted on patients who underwent orthognathic surgery from January 2016 to August 2017. A total of 40 patients were included in this retrospective study. A spiral scanner was used to obtain the 3-dimensional computed tomography scans. The landmarks were assigned on the reconstructed 3-dimensional images, and their locations were verified on the axial, midsagittal, and coronal slices. The Pearson correlation analysis was performed to evaluate the correlation between chin deviation and difference between the measurements of distances in paired craniofacial structures. Statistical analysis was performed at a significance level of 5%. Results In mandible, the degree of chin deviation was correlated with the mandibular length and mandibular body length. Mandibular length and mandibular body length are shorter on the deviated-chin side compared to that on the non-deviated side (mandibular length, r = −0.897, p value < 0.001; mandibular body length, r = −0.318, p value = 0.045). In the upper and middle facial thirds, the degree of chin deviation was correlated with the vertical asymmetry of the glenoid fossa and zygonion. Glenoid fossa and zygonion are superior on the deviated-chin side than on the non-deviated side (glenoid fossa, r = 0.317, p value = 0.046; zygonion, r = 0.357, p value = 0.024). Conclusion Lateral deviation of chin is correlated with upper and middle facial third asymmetry as well as lower facial third asymmetry. As a result, treatment planning in patients with chin deviation should involve a careful evaluation of the asymmetry of the upper and middle facial thirds to ensure complete patient satisfaction.https://doi.org/10.1186/s40902-019-0241-1Lateral deviation of chinUpper and middle facial third asymmetryAsymmetry of glenoid cavity |
| spellingShingle | Hyo-Won CHOI Bola KIM Jae-Young KIM Jong-Ki HUH Kwang-Ho PARK Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin Maxillofacial Plastic and Reconstructive Surgery Lateral deviation of chin Upper and middle facial third asymmetry Asymmetry of glenoid cavity |
| title | Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin |
| title_full | Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin |
| title_fullStr | Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin |
| title_full_unstemmed | Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin |
| title_short | Three-dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin |
| title_sort | three dimensional computed tomography evaluation of craniofacial characteristics according to lateral deviation of chin |
| topic | Lateral deviation of chin Upper and middle facial third asymmetry Asymmetry of glenoid cavity |
| url | https://doi.org/10.1186/s40902-019-0241-1 |
| work_keys_str_mv | AT hyowonchoi threedimensionalcomputedtomographyevaluationofcraniofacialcharacteristicsaccordingtolateraldeviationofchin AT bolakim threedimensionalcomputedtomographyevaluationofcraniofacialcharacteristicsaccordingtolateraldeviationofchin AT jaeyoungkim threedimensionalcomputedtomographyevaluationofcraniofacialcharacteristicsaccordingtolateraldeviationofchin AT jongkihuh threedimensionalcomputedtomographyevaluationofcraniofacialcharacteristicsaccordingtolateraldeviationofchin AT kwanghopark threedimensionalcomputedtomographyevaluationofcraniofacialcharacteristicsaccordingtolateraldeviationofchin |