DC/TMD Axis I for Children

The aim of the present investigation was to perform the content and construct validation of the diagnostic criteria for TMD (DC/TMD) Axis I, for children 7 to 11 years old. A Delphi process was used to perfom the content validity of the DC/TMD Axis I. 189 7-11 years old children were assessed with the adapted instrument. Confirmatory factor analysis (CFA) was used to investigate construct validity of the DC/TMD for children. A baseline one-factor model was compared against a two-factor (Model 2) and a seven-factor (Model 3) models based on the original DC/TMD. Root-mean-squared error of approximation (RMSEA), comparative fit index (CFI), chi-square, change in chi-square and Cronbach's Alpha were used to analyze the data. All analysis were performed in STATA© version 13.0.