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Twin study—genetic comparison of matrix versus intramatrix rotation in the mandible and three different occlusal planes
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jin Hyeong | - |
dc.contributor.author | Kim, Young Ho | - |
dc.contributor.author | Kim, Soo Jin | - |
dc.contributor.author | Sung, Joohon | - |
dc.contributor.author | Song, Yun-Mi | - |
dc.contributor.author | Shin, Jeong Won | - |
dc.contributor.author | Park, Jae Hyun | - |
dc.contributor.author | Chae, Hwa Sung | - |
dc.date.accessioned | 2021-03-23T05:41:14Z | - |
dc.date.available | 2021-03-23T14:43:02Z | - |
dc.date.issued | 2020-12-07 | - |
dc.identifier.citation | Progress in Orthodontics. 2020 Dec 07;21(1):44 | ko_KR |
dc.identifier.issn | 2196-1042 | - |
dc.identifier.uri | https://hdl.handle.net/10371/173894 | - |
dc.description.abstract | Background
The purpose of this study is to investigate the heritability of total rotation, matrix rotation, and intramatrix rotation of the mandible in Korean monozygotic (MZ) twins, dizygotic (DZ) twins, and their siblings. Materials and methods The samples consisted of 75 pairs of Korean twins (39.7 + 9.26 years; MZ group, 36 pairs; DZ group, 13 pairs; sibling group, 26 pairs). Lateral cephalograms were taken, and 13 variables related to internal and external mandible rotation were measured. Three types of occlusal planes (bisected occlusal plane, functional occlusal plane, and the MM bisector occlusal plane) were used to evaluate genetic influence on the occlusal plane. Heritability (h2) was calculated by using the intraclass correlation coefficient (ICC) and Falconers method. Results With regard to mandibular rotation, the MZ twin group showed significantly higher ICC values compared to the DZ twin and sibling groups. The ICC mean values for 13 cephalometric measurements were 0.85 (MZ), 0.62 (DZ), and 0.52 (siblings) respectively. The heritability of the total rotation (0.48) and matrix rotation (0.5) between the MZ and DZ groups was higher than that of the intramatrix rotation (− 0.14). All of the three types of occlusal plane showed high heritability, and among the three types, the functional occlusal plane showed the highest heritability (h2 = 0.76). Conclusion Based on these findings that showed a strong genetic effect on total rotation and matrix rotation, maintaining these rotations should be carefully considered in the orthodontic treatment plan, while the lower border of the mandible may be responsive to various treatments. Occlusal plane change, especially with regard to the functional occlusal plane, may not be stable due to strong genetic influences. | ko_KR |
dc.language.iso | en | ko_KR |
dc.publisher | Springer Open | ko_KR |
dc.subject | Twins | - |
dc.subject | Heritability | - |
dc.subject | Mandibular rotation | - |
dc.subject | Occlusal plane | - |
dc.title | Twin study—genetic comparison of matrix versus intramatrix rotation in the mandible and three different occlusal planes | ko_KR |
dc.type | Article | ko_KR |
dc.contributor.AlternativeAuthor | 김진형 | - |
dc.contributor.AlternativeAuthor | 김영호 | - |
dc.contributor.AlternativeAuthor | 김수진 | - |
dc.contributor.AlternativeAuthor | 성주혼 | - |
dc.contributor.AlternativeAuthor | 송윤미 | - |
dc.contributor.AlternativeAuthor | 신정원 | - |
dc.contributor.AlternativeAuthor | 박재현 | - |
dc.contributor.AlternativeAuthor | 채화성 | - |
dc.identifier.doi | 10.1186/s40510-020-00344-2 | - |
dc.citation.journaltitle | Progress in Orthodontics | ko_KR |
dc.language.rfc3066 | en | - |
dc.rights.holder | The Author(s) | - |
dc.date.updated | 2021-01-27T10:46:58Z | - |
dc.citation.number | 1 | ko_KR |
dc.citation.startpage | 44 | ko_KR |
dc.citation.volume | 21 | ko_KR |
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