E. Fliegel

Recognizing and differentiating dental anxiety from dental phobia in adults: a systematic review based on the German guideline "Dental anxiety in adults".

N. Enkling, S. Bürklein, Hans-Peter Jöhren, 2021, Quintessence international.

The Hierarchical Anxiety Questionnaire-20 Years of Experience in The Diagnosis of Dental Anxiety and Dental Phobia. A Systematic Literature Search

N. Enkling, P. Jöhren, A. Wannemüller, 2021 .