Sensitivity and Specificity of Cephalometric Measures for the Diagnosis of Sagittal Skeletal Malocclusion
Pesqui. bras. odontopediatria clín. integr
;
19(1): 4583, 01 Fevereiro 2019. tab, graf
Article
in English
| LILACS, BBO
| ID: biblio-997973
ABSTRACT
Objective:
To evaluate and compare sensitivity and specificity of ANB, Wits, APDI and AF-BF to diagnose sagittal skeletal malocclusions, in children between 6 to 12 years old, using ROC curves, a widely accepted method for the analysis and evaluation of diagnostic tests. Material andMethods:
A descriptive-comparative study of diagnostic tests was conducted. From a population of 3,000 children, a non-probabilistic sample of 209 was selected. The clinical classification of the patients as class I, II or III, made by a group of experts based on the visual inspection of models and photographs, was chosen as the gold standard. After calibration (ICC>0.94) the variables were measured in cephalograms. Eight ROC curves were plotted (I vs II, and I vs III for each one of the variables). The area under the curve was measured and compared (Ji-square test). Cut points were established.Results:
To discriminate Class I from II, ANB showed the largest area under the curve (AUC) (0.876) and the cut point (best sensitivity and specificity) was at 5.75°. To discriminate class I from III, Wits showed the largest AUC (0.874) with a cut point of -3.25 mm. There were no statistical differences between the AUC for the four variables (p=0.48 y p=0.38 for class I-II and I-III).Conclusion:
ANB and Wits performed better for the diagnosis of class II and III, respectively. Cut points in children were different from those reported in adults.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Cephalometry
/
ROC Curve
/
Malocclusion
/
Malocclusion, Angle Class II
/
Malocclusion, Angle Class III
Type of study:
Diagnostic study
/
Evaluation studies
/
Prognostic study
Country/Region as subject:
South America
/
Colombia
Language:
English
Journal:
Pesqui. bras. odontopediatria clín. integr
Journal subject:
Dentistry
Year:
2019
Type:
Article
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