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Table 5 Variation differences between different landmarks*

From: Three dimensional quantitative study of soft tissue changes in nasolabial folds after orthodontic treatment in female adults

Measurement

Non-extraction

Extraction

P-value

P-value

NLF1L–NLF2L

0.355

0.011ƚ

NLF1R–NLF2R

0.636

0.982ǂ

NLF1L–NLF1R

0.802ǂ

0.844

NLF2L–NLF2R

0.982

0.942

NLF3L–NLF3R

0.415

0.581

L′–L′′

0.995

1.000ǂ

R′–R′′

0.516

0.103

L′–R′

0.499

0.877

L′′–R′′

0.990

0.882ǂ

ChL–ChR

0.933

0.596

ULP–LLP

0.432

0.000ƚ

Ls–Li

0.068

0.057

CphL–CphR

0.248

0.800

CkL–CkR

0.904

0.604

BuL–BuR

0.455

0.701

A′–B′

0.777

0.946ǂ

  1. ƚSignificant difference between the different landmarks, P < 0.05; *The data conformed to normal distribution and variances uniform, and a paired samples t-test was used; ǂThe data did not conform to a normal distribution and uniform variances, therefore a Wilcoxon signed-rank test was employed
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BMC Oral Health

ISSN: 1472-6831

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