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Sagittal lip positions in different skeletal malocclusions: a cephalometric analysis

Overview of attention for article published in Progress in Orthodontics, May 2015
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Title
Sagittal lip positions in different skeletal malocclusions: a cephalometric analysis
Published in
Progress in Orthodontics, May 2015
DOI 10.1186/s40510-015-0077-x
Pubmed ID
Authors

Merina Joshi, Li Peng Wu, Surendra Maharjan, Mukunda Raj Regmi

Abstract

The objectives of this paper are to (1) study use of soft tissue analyses advocated by Steiner, Ricketts, Burstone, Sushner and Holdway to develop soft tissue cephalometric norms as baseline data for sagittal lip position in Northeast Chinese adult population, (2) compare the sagittal lip positions in different skeletal malocclusions and (3) compare the sagittal lip positions in Northeast Chinese adults with other reported populations. Lateral cephalometric radiographs of subjects were taken in natural head position. Radiographs were manually traced and five reference lines - Sushner, Steiner, Burstone, Holdway and Ricketts, were used. The linear distance between the tip of the lips and the five reference lines were measured. Statistical analysis was done using the Statistical Package for Social Sciences (SPSS) 21. Descriptive analysis was done for each variable for each subject. Coefficient of variation between lip positions as assessed by reference lines was determined. Post hoc Tukey's test was used for comparison of the mean cephalometric values of three skeletal malocclusions. The level of significance for the analysis was set at p < 0.05. The findings showed significant difference in the sagittal lip positions in different skeletal malocclusions. There was variation in consistent reference line in each skeletal malocclusion. The S2 line was the most consistent reference line in skeletal class I and class II group. The B line was the most consistent line in skeletal class III. In skeletal class II group, upper lips were the most protrusive and lower lips were retrusive than in skeletal class I and class III groups. In case of skeletal class III group, upper lips were retrusive and lower lips were more protrusive than in skeletal class I and class II groups. The sagittal lip positions were found to be associated with the skeletal malocclusion pattern. Northeast Chinese population has protrusive upper and lower lip in comparison to Caucasians. Each skeletal malocclusion group showed different preferable reference lines for analysis of sagittal lip position.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 46 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 13 28%
Student > Postgraduate 8 17%
Student > Bachelor 6 13%
Student > Doctoral Student 6 13%
Student > Ph. D. Student 5 11%
Other 4 9%
Unknown 4 9%
Readers by discipline Count As %
Medicine and Dentistry 33 72%
Agricultural and Biological Sciences 2 4%
Social Sciences 1 2%
Nursing and Health Professions 1 2%
Unknown 9 20%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 May 2015.
All research outputs
#3,338,365
of 5,056,368 outputs
Outputs from Progress in Orthodontics
#42
of 82 outputs
Outputs of similar age
#106,284
of 157,017 outputs
Outputs of similar age from Progress in Orthodontics
#3
of 5 outputs
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So far Altmetric has tracked 82 research outputs from this source. They receive a mean Attention Score of 1.3. This one is in the 30th percentile – i.e., 30% of its peers scored the same or lower than it.
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