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Evaluating the Correlation between Overjet and Skeletal Parameters Using DVT.

Luca Lombardo1, Chiara Sgarbanti, Antonio Guarneri

  • 1Postgraduate School of Orthodontics, University of Ferrara, Via Montebello 31, 44100 Ferrara, Italy.

International Journal of Dentistry
|August 18, 2012
PubMed
Summary
This summary is machine-generated.

Overjet, a dental measurement, reliably predicts the ANB angle, indicating skeletal class, especially in skeletal class II cases. It shows a weaker correlation with the upper incisor-bispinal angle.

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Area of Science:

  • Dentistry
  • Orthodontics
  • Cephalometrics

Background:

  • Overjet is a clinically relevant dental parameter.
  • Skeletal and dentoskeletal parameters like ANB, IMPA, and U1/ANS-PNS are crucial in orthodontic diagnosis.
  • Understanding correlations aids in accurate diagnosis and treatment planning.

Purpose of the Study:

  • To assess the correlation between overjet and cephalometric parameters (ANB, IMPA, U1/ANS-PNS).
  • To determine if overjet can predict skeletal and dentoskeletal relationships.

Main Methods:

  • A sample of 42 subjects with complete permanent dentition was divided into skeletal class I (ANB 0°-4°) and class II (ANB >4°).
  • Cone-beam computed tomography (CBCT) was used to measure ANB, overjet (OJ), IMPA, and upper incisor-bispinal angle (U1/ANS-PNS).

Main Results:

  • A statistically significant correlation was found between overjet and the ANB angle (P < 0.001).
  • No significant correlation was observed between overjet and the IMPA angle.
  • A weak correlation was noted between overjet and the left upper incisor-bispinal plane.

Conclusions:

  • Overjet is a reliable predictor of the ANB angle, particularly in skeletal class II.
  • Overjet may also predict the upper incisor-bispinal plane to a lesser extent.
  • These findings support the clinical utility of overjet in orthodontic assessment.