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Reliability, Construct Validity, Acceptability and Feasibility of the BruxScreen.

Laurence J Kessler1, Merel C Verhoeff1, Tess Chin1

  • 1Department of Orofacial Pain and Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.

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|November 5, 2025
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Summary

The BruxScreen tool shows good reliability and validity for assessing bruxism. However, self-reported bruxism (BruxScreen-Q) does not align with clinical assessments (BruxScreen-C).

Keywords:
bruxismdata accuracymass screeningreproducibility of resultsself reportsurveys and questionnaires

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Area of Science:

  • Dental diagnostics
  • Oral health assessment
  • Bruxism research

Background:

  • Bruxism assessment tools are crucial for diagnosis.
  • The BruxScreen, comprising BruxScreen-Q (questionnaire) and BruxScreen-C (clinical assessment), is a novel tool.
  • Evaluating its psychometric properties and concordance is essential.

Purpose of the Study:

  • To evaluate the intra- and inter-rater reliability of BruxScreen-Q and BruxScreen-C.
  • To assess the construct validity, acceptability, and feasibility of the BruxScreen.
  • To determine the concordance between self-reported and clinically assessed bruxism.

Main Methods:

  • 88 dental students completed the BruxScreen-Q twice and participated in BruxScreen-C assessments.
  • Intra-rater reliability was assessed using Cohen's Kappa and ICC.
  • Construct validity was tested using correlation and hypothesis testing; acceptability and feasibility were evaluated descriptively.

Main Results:

  • BruxScreen-Q demonstrated fair to substantial intra-rater reliability.
  • BruxScreen-C showed variable, but often excellent, intra- and inter-rater reliability.
  • BruxScreen-Q had moderate construct validity, and both components were deemed acceptable and feasible; however, no agreement was found between self-reported and clinically diagnosed bruxism.

Conclusions:

  • The BruxScreen tool exhibits acceptable reliability, validity, feasibility, and acceptability for bruxism assessment.
  • A significant discrepancy exists between subject-based bruxism (BruxScreen-Q) and clinician-based bruxism (BruxScreen-C).
  • Further research is needed to understand and reconcile this discordance in bruxism assessment.