Abstract：
OBJECTIVE:The aim of this study was to assess the stability of Natural Head Position (NHP) over time using the 3dMDface System. SETTING AND SAMPLE POPULATION:This was an experimental study. Three-dimensional facial images of 40 students were captured on two different occasions, with an interval of at least two weeks. MATERIALS AND METHODS:The images were taken using a stereophotogrammetric device (3dMD). The mirror positioned NHP was obtained in a standing position and then replicated in a sitting position for capturing. The self-balanced NHP was taken in a sitting position. Rapidform 3D software was used for position angle calculations. The angle changes between the positions were calculated for rotations around the x-, y- and z-axes. RESULTS:The differences between NHP in the self-balanced and mirror positions recorded on the first and second occasions were 2.43 and 1.75 degrees, respectively, around the x-axis. The average changes in NHP around the x-axis between the self-balanced and mirror balanced positions exceeded 3 degrees at the two-week interval. The differences were smaller for the rotations around the y- and z-axes. Some subjects consistently tended to hold their heads in a more extended position when self-balanced, while others did this when mirror balanced. There was no difference in the reproducibility of NHP between men and women. CONCLUSION:The reproducibility of NHP for consecutive stereophotogrammetric captures is generally acceptable. The reproducibility of NHP using the mirror position was slightly better compared with NHP in the sitting self-balanced position.
journal_name
Orthod Craniofac Resjournal_title
Orthodontics & craniofacial researchauthors
Jakobsone G,Vuollo V,Pirttiniemi Pdoi
10.1111/ocr.12344subject
Has Abstractpub_date
2020-02-01 00:00:00pages
66-71issue
1eissn
1601-6335issn
1601-6343journal_volume
23pub_type
杂志文章abstract：OBJECTIVE:This investigation evaluates the evidence of case-based reasoning (CBR) in providing additional information on the prediction of future Class III craniofacial growth. SETTINGS AND SAMPLE POPULATION:The craniofacial characteristics of 104 untreated Class III subjects (7-17 years of age), monitored with two la...
journal_title：Orthodontics & craniofacial research
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更新日期：2021-01-08 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,随机对照试验
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更新日期：2012-08-01 00:00:00
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journal_title：Orthodontics & craniofacial research
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更新日期：2015-02-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/ocr.12056
更新日期：2015-02-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
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更新日期：2019-11-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,随机对照试验
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更新日期：2008-08-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1111/ocr.12093
更新日期：2015-08-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/ocr.12120
更新日期：2016-05-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,评审
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更新日期：2010-02-01 00:00:00
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journal_title：Orthodontics & craniofacial research
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doi：10.1111/j.1601-6343.2011.01525.x
更新日期：2011-11-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/j.1601-6343.2010.01494.x
更新日期：2010-08-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,评审
doi：10.1111/j.1601-6343.2009.01452.x
更新日期：2009-08-01 00:00:00
abstract：AIMS AND OBJECTIVES:Documentation of dental and orthodontic implications of osteoglophonic dysplasia (OGD). SETTINGS AND PARTICIPANTS:Case report describing oral and dental manifestations of a female with OGD, aged 39 years, who was first documented three decades ago. RESULTS:This rare genetic disorder manifests with...
journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/j.1601-6343.2006.00369.x
更新日期：2006-08-01 00:00:00
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更新日期：2016-02-01 00:00:00
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doi：10.1111/ocr.12292
更新日期：2019-05-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,评审
doi：10.1111/ocr.12171
更新日期：2017-06-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
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更新日期：2003-08-01 00:00:00
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pub_type： 杂志文章
doi：10.1111/j.1601-6343.2004.00283.x
更新日期：2004-05-01 00:00:00
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更新日期：2008-11-01 00:00:00
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doi：10.1111/j.1601-6343.2005.00332.x
更新日期：2005-08-01 00:00:00
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更新日期：2016-05-01 00:00:00
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更新日期：2014-11-01 00:00:00
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更新日期：2004-02-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,评审
doi：10.1111/j.1601-6343.2007.00384.x
更新日期：2007-05-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/ocr.12252
更新日期：2019-02-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/j.1601-6343.2009.01440.x
更新日期：2009-05-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章,评审
doi：10.1111/ocr.12302
更新日期：2019-05-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to compare treatment outcomes with different maxillary protraction methods in patients with skeletal Class III malocclusion resulting from maxillary retrognathia. SETTING AND SAMPLE POPULATION:A total of 55 individuals consisting of 29 females and 26 males with a mean age of 11.4 ± ...
journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/ocr.12389
更新日期：2020-11-01 00:00:00
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journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
doi：10.1111/ocr.12154
更新日期：2017-05-01 00:00:00
abstract：OBJECTIVES:To evaluate the accuracy of three-dimensional stereophotogrammetry by comparing values obtained from direct anthropometry and the 3dMDface system. To achieve a more comprehensive evaluation of the reliability of 3dMD, both linear and surface measurements were examined. SETTING AND SAMPLE POPULATION:UCLA Sec...
journal_title：Orthodontics & craniofacial research
pub_type： 杂志文章
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更新日期：2017-06-01 00:00:00
