Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study
Objectives: This study introduced a three-dimensional (3D) surface-to-surface matching technique to evaluate the mandibular symmetry of teenagers and adults with unilateral second molar scissor bite. Methods: The targets came from 73 cone-beam computed tomography (CBCT) images with unilateral second...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-07-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022012026 |
| _version_ | 1818017650905710592 |
|---|---|
| author | Yajuan Xie Runling Zeng Jiayin Yan Tong Yan Jiali Tan |
| author_facet | Yajuan Xie Runling Zeng Jiayin Yan Tong Yan Jiali Tan |
| author_sort | Yajuan Xie |
| collection | DOAJ |
| description | Objectives: This study introduced a three-dimensional (3D) surface-to-surface matching technique to evaluate the mandibular symmetry of teenagers and adults with unilateral second molar scissor bite. Methods: The targets came from 73 cone-beam computed tomography (CBCT) images with unilateral second molar scissor bite, including teenagers (n = 30) and adults (n = 43). 73 images without scissor bite and matched in sex and age were selected as controls. The scans were developed into 3D mandible models and seven mandibular functional unit models, including condylar process (Co), coronoid process (Cr), mandibular ramus (Ra), mandibular angle (Ma), alveolar process (Ap), mandibular body (Mb) and chin process (Ch). The surface-to-surface matching technique was introduced. 3D deviation analysis and matching percentages calculation were performed and compared to evaluate the symmetry of the mandible. Results: Comparisons were made between the study samples and control samples. For teenagers, the matching percentages of the entire mandible (55.31 ± 7.24%), Mb (69.04 ± 9.22%) and Co (65.19 ± 10.67%) in the study group were lower than that of the entire mandible (60.87 ± 6.38%) (P <0.01), Mb (75.0 ± 8.71%) (P <0.05) and Co (70.25 ± 8.20%) (P <0.05) in the control group. While Ap, Ra, Ch, Cr and Ma showed no statistically significant differences (P >0.05). For adults, the matching percentages of the entire mandible (48.88 ± 9.77%), Ap (65.83 ± 11.21%), Mb (64.43 ± 12.03%), Ch (79.17 ± 10.29%), Ra (64.11 ± 9.84%) and Co (61.08 ± 11.64%) in the study group were lower than the entire mandible (59.28 ± 5.49%) (P <0.01), Ap (73.65 ± 9.10%) (P <0.01), Mb (71.66 ± 8.40%) (P <0.01), Ch (83.86 ± 5.59%) (P <0.05), Ra (68.54 ± 7.87%) (P <0.05) and Co (66.20 ± 10.62%) (P <0.05) of the control group. Only Cr and Ma showed no statistically significant differences (P >0.05). Conclusion: Mandibular asymmetry was observed in both teenagers and adults with unilateral second molar scissor bite. Moreover, compared with teenagers, more mandibular units of adult patients were affected. Clinical significance: Based on the surface-to-surface matching technique, the symmetric and morphological information of the mandible can be converted into visual color maps and quantitative descriptions. This method can bring convenience to the study of the growth of mandible, orthodontic treatment and orthognathic surgery design. |
| first_indexed | 2024-04-14T07:29:40Z |
| format | Article |
| id | doaj.art-ea8630c51ca940d28c6af0aa6ec71a3a |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-14T07:29:40Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-ea8630c51ca940d28c6af0aa6ec71a3a2022-12-22T02:05:54ZengElsevierHeliyon2405-84402022-07-0187e09914Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective studyYajuan Xie0Runling Zeng1Jiayin Yan2Tong Yan3Jiali Tan4Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, ChinaHospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, ChinaHospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, ChinaHospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, ChinaHospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China; Corresponding author.Objectives: This study introduced a three-dimensional (3D) surface-to-surface matching technique to evaluate the mandibular symmetry of teenagers and adults with unilateral second molar scissor bite. Methods: The targets came from 73 cone-beam computed tomography (CBCT) images with unilateral second molar scissor bite, including teenagers (n = 30) and adults (n = 43). 73 images without scissor bite and matched in sex and age were selected as controls. The scans were developed into 3D mandible models and seven mandibular functional unit models, including condylar process (Co), coronoid process (Cr), mandibular ramus (Ra), mandibular angle (Ma), alveolar process (Ap), mandibular body (Mb) and chin process (Ch). The surface-to-surface matching technique was introduced. 3D deviation analysis and matching percentages calculation were performed and compared to evaluate the symmetry of the mandible. Results: Comparisons were made between the study samples and control samples. For teenagers, the matching percentages of the entire mandible (55.31 ± 7.24%), Mb (69.04 ± 9.22%) and Co (65.19 ± 10.67%) in the study group were lower than that of the entire mandible (60.87 ± 6.38%) (P <0.01), Mb (75.0 ± 8.71%) (P <0.05) and Co (70.25 ± 8.20%) (P <0.05) in the control group. While Ap, Ra, Ch, Cr and Ma showed no statistically significant differences (P >0.05). For adults, the matching percentages of the entire mandible (48.88 ± 9.77%), Ap (65.83 ± 11.21%), Mb (64.43 ± 12.03%), Ch (79.17 ± 10.29%), Ra (64.11 ± 9.84%) and Co (61.08 ± 11.64%) in the study group were lower than the entire mandible (59.28 ± 5.49%) (P <0.01), Ap (73.65 ± 9.10%) (P <0.01), Mb (71.66 ± 8.40%) (P <0.01), Ch (83.86 ± 5.59%) (P <0.05), Ra (68.54 ± 7.87%) (P <0.05) and Co (66.20 ± 10.62%) (P <0.05) of the control group. Only Cr and Ma showed no statistically significant differences (P >0.05). Conclusion: Mandibular asymmetry was observed in both teenagers and adults with unilateral second molar scissor bite. Moreover, compared with teenagers, more mandibular units of adult patients were affected. Clinical significance: Based on the surface-to-surface matching technique, the symmetric and morphological information of the mandible can be converted into visual color maps and quantitative descriptions. This method can bring convenience to the study of the growth of mandible, orthodontic treatment and orthognathic surgery design.http://www.sciencedirect.com/science/article/pii/S2405844022012026Cone-beam computed tomographyThree-dimensional imagingSecond molarScissor bite |
| spellingShingle | Yajuan Xie Runling Zeng Jiayin Yan Tong Yan Jiali Tan Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study Heliyon Cone-beam computed tomography Three-dimensional imaging Second molar Scissor bite |
| title | Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study |
| title_full | Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study |
| title_fullStr | Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study |
| title_full_unstemmed | Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study |
| title_short | Introducing surface-to-surface matching technique to evaluate mandibular symmetry: A retrospective study |
| title_sort | introducing surface to surface matching technique to evaluate mandibular symmetry a retrospective study |
| topic | Cone-beam computed tomography Three-dimensional imaging Second molar Scissor bite |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022012026 |
| work_keys_str_mv | AT yajuanxie introducingsurfacetosurfacematchingtechniquetoevaluatemandibularsymmetryaretrospectivestudy AT runlingzeng introducingsurfacetosurfacematchingtechniquetoevaluatemandibularsymmetryaretrospectivestudy AT jiayinyan introducingsurfacetosurfacematchingtechniquetoevaluatemandibularsymmetryaretrospectivestudy AT tongyan introducingsurfacetosurfacematchingtechniquetoevaluatemandibularsymmetryaretrospectivestudy AT jialitan introducingsurfacetosurfacematchingtechniquetoevaluatemandibularsymmetryaretrospectivestudy |