1. Dental fear and avoidance: causes, symptoms, and consequences;Berggren;Journal of the American Dental Association,1984
2. Who is referred for sedation for dentistry and why?;Boyle;British Dental Journal,2009
3. The impact of dental anxiety on daily living;Cohen;British Dental Journal,2000
4. Uncertainty of outcomes, prediction of failure, and lack of control as factors explaining perceived helplessness;Cramer;Journal of Social Behavior and Personality,1997
5. Clinical management of dental anxiety: what works for whom?;De Jongh;International Dental Journal,2005