Crown-to-root ratios in terms of length, surface area and volume: a pilot study of premolars
文献类型：期刊论文
| 作者 | Liu, Lin1; Li, Hongbo2; Zhao, Tong3; Gao, Yuxuan1; Guo, Jing1; Wang, Xiaoyu1; Li, Xuesheng1 |
| 刊名 | International journal of morphology
 |
| 出版日期 | 2016-06-01 |
| 卷号 | 34期号:2页码:465-470 |
| 关键词 | Bicuspid Tooth crown Tooth root |
| ISSN号 | 0717-9502 |
| 通讯作者 | Li, hongbo(lihongbo20151012@sina.com) |
| 英文摘要 | The objective of this study was to construct three-dimensional (3d) images of premolars to measure the length, surface area and volume of crown and root and to analyze the mathematical relation among crown-to-root ratios in terms of length, surface area and volume. twenty-five premolars were scanned using micro-computed tomography (micro ct) in vitro to build 3d models. the long axis and enamelo-cemental junction of each tooth were determined with the help of geomagic studio software, and the length, surface and volume of crown and root were measured. the crown-to-root ratios in terms of length, surface and volume were calculated and the relationship among length, surface area and volume of crown and root as well their ratios were analyzed using spss software. the interrelationship among crown length (x), surface area (y) and volume (z) could be expressed as z = -808.20+124.80x+3.35y-5.59x(2)-0.14xy+3.47y(2*)10-(4) (r-2 = 0.99) and that of root length (x(1)), surface area (y(1)) and volume (z(1)), as z(1) = -207.50+13.87x(1)+1.75y(1)+5.03x(1)(2*)10(-2)-8.05x(1)y(1)*10(-2)+2.58*10(-3)y(1)(2) (r-2 = 0.93). the correlation among crown-to-root ratio in length(x(2)), crown-to-root ratio in surface area (y(2)) and crown-to-root ratio in volume (z(2)) could be expressed in z(2) = -4.48*10(-2)-1.25x(2)*10(-2)+1.20y(2)+3.29x22-5.05x(2)y(2)+2.00y(2)(2) (r-2 = 0.96). the length, surface area and volume of crown and root of premolars share a close relationship, while, a definite mathematical relation could be observed amongst their ratios. crown to root ratio in terms of length, surface and volume, may provide a novel multi-criterion method for evaluating tooth function. |
| WOS关键词 | TOOTH MOVEMENT ; 1ST MOLAR |
| WOS研究方向 | Anatomy & Morphology |
| WOS类目 | Anatomy & Morphology |
| 语种 | 英语 |
| WOS记录号 | WOS:000379751100009 |
| 出版者 | SOC CHILENA ANATOMIA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374575 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Hongbo |
| 作者单位 | 1.Peoples Liberat Army, Gen Hosp, Oral Med Ctr, Beijing, Peoples R China 2.Peoples Liberat Army, Gen Hosp, Dept Stomatol, Beijing 100853, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Lin,Li, Hongbo,Zhao, Tong,et al. Crown-to-root ratios in terms of length, surface area and volume: a pilot study of premolars[J]. International journal of morphology,2016,34(2):465-470. |
| APA | Liu, Lin.,Li, Hongbo.,Zhao, Tong.,Gao, Yuxuan.,Guo, Jing.,...&Li, Xuesheng.(2016).Crown-to-root ratios in terms of length, surface area and volume: a pilot study of premolars.International journal of morphology,34(2),465-470. |
| MLA | Liu, Lin,et al."Crown-to-root ratios in terms of length, surface area and volume: a pilot study of premolars".International journal of morphology 34.2(2016):465-470. |
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来源：中国科学院大学
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