Abstract: Objective: To investigate the prevalence of dental anxiety, and study the influences of Eysenck personality factors on dental anxiety and pain of patients wearing cyst plug after fenestration and decompression. Methods: One hundred and twenty-six adult patients wearing cyst plug after fenestration and decompression were investigated with the EPQ, MDAS and VAS. The data was analyzed by SPSS 22.0 software. Results:The prevalence rate of DA in patients wearing cyst plug after fenestration and decompression was 60.32%. The score of MDAS was positively correlated to that of neuroticism (r=0.315) and psychoticism (r=0.241), and negatively correlated to extroversion (r=-0.322). Patients with DA had significantly higher scores of neuroticism and psychoticism and lower scores of extroversion than those without DA (P=0.000). The score of VAS was positively correlated to neuroticism (r=0.329) and psychoticism (r=0.386), and negatively correlated to extroversion (r=-0.237). Patients with DA had significantly higher scores of VAS than those without DA (P=0.009). The scores of MDAS was positively correlated to scores of VAS (r=0.234). Conclusion: Dental anxiety and pains of jaw cyst patients wearing cyst plug after fenestration and decompression are correlated to Eysenck personality. Patients who have higher score of neuroticism and psychoticism and lower scores of extroversion are more likely to suffer from dental anxiety and pain.

Key words: Dental anxiety , Eysenck personality, questionnaire , Modified dental anxiety scale, Visual analogue scale, Jaw cyst, Fenestration and decompression