Purpose:
There are very few studies evaluating the knowledge of dentists about infection
precautions in oral radiology. The aim of this study was to assess the psychometric
properties of the Turkish version of the modified form of a developed questionnaire
and to apply this questionnaire to Turkish dentists.
Materials and methods:
The questionnaire was applied to a sample of 250 dentists for the scale development
[200 for confirmatory factor analysis (CFA) and 50 for control] and 173 dentists for
the implementation of the scale. The scale was applied to 200 dentists and construct
validity was examined with CFA. For model fit; chi square to df ratio, RMSEA (Root
Mean Square Error of Approximation), TLI (Tucker-Lewis Index), CFI (Comparative Fit
Index), GFI (goodness of fit index), AGFI (adjusted goodness of fit index) and NFI
(normed fit index) were obtained. Also, reliability analysis was applied and itemtotal
correlations and Cronbach’s alpha values were given. Adapted scale scores
using a different sample of 173 dentists were compared according to demographic
characteristics.
Results:
CFA showed good fit statistics (X2/df=1.511, RMSEA=0.057, TLI=0.942, CFI=0.953,
GFI=0.926, AGFI=0.900, NFI=0.928) for the scale. Item-total correlations were over
0.30 and Cronbach’s alpha was calculated as 0.877. In addition, experienced dentists
had higher scores in the dimension of personal hygiene (p<0.05).
Conclusion:
The Turkish version of the modified infection control questionnaire in oral radiology
showed adequate psychometric properties. This indicated that it could be a valid
and reliable tool for the assessment of infection control in oral radiology among
Turkish dentists.