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Related Experiment Videos

Influence of examiner differences on KIG-classification when assessing malocclusions.

Dietmar Gesch1, Antje Kirbschus, Wiebke Schröder

  • 1Department of Orthodontics, Preventive and Pediatric Dentistry, Center of Oral Health, University of Greifswald, Greifswald, Germany. gesch@uni-greifswald.de

Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopadie : Organ/Official Journal Deutsche Gesellschaft Fur Kieferorthopadie
|March 30, 2006
PubMed
Summary

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Examiner agreement on orthodontic malocclusions varies, impacting classifications for the German KIG system. Differences in assessment methods and experience levels affect consistency in determining insurance coverage for orthodontic treatment.

Area of Science:

  • Dental science
  • Orthodontics
  • Public health

Background:

  • The German Kieferorthopädische Indikationsgruppen (KIG) system requires objective malocclusion assessment for insurance coverage.
  • Variability in examiner assessment can lead to inconsistent KIG classifications and affect treatment eligibility.

Purpose of the Study:

  • To evaluate the agreement among examiners in assessing malocclusions.
  • To determine the consistency of KIG system classifications based on different assessment methods and examiner experience.

Main Methods:

  • 180 adults from the Study of Health in Pomerania (SHIP) were assessed clinically and via plaster models.
  • Examiner agreement was compared between clinical evaluations and model analyses.
  • Inter- and intra-examiner reliability was assessed, considering varying levels of orthodontic experience.

Related Experiment Videos

Main Results:

  • Significant examiner differences occurred in KIG classifications, impacting decisions on health insurance coverage.
  • Clinical examination versus model analysis showed differences in 16.7% of participants regarding insurance coverage.
  • Lower examiner experience correlated with greater differences in malocclusion assessment (median kappa 0.61-0.62 vs. 0.70).

Conclusions:

  • Considerable examiner variability exists in classifying malocclusions using the KIG system.
  • Discrepancies in data collection methods (clinical vs. model) and examiner experience negatively influence inter-examiner agreement.