Background: Dental anxiety is a common problem associated with poorer oral health. Managing anxiety is key to improving oral health of patients with dental anxiety. The present pilot study therefore investigated dental anxiety prevalence among patients visiting a university dental clinic. We further examined the effect of combined psychological interventions on anxiety or concern towards dental treatment procedures before treatment, after treatment, and at follow-up. Methods: In this prospective pilot study, patients seeking restorative treatment were screened for dental anxiety and dental concern about treatment using the Dental Anxiety Scale-Revised (DAS-R) and Dental Concern Assessment (DCA) questionnaires. Participants with a DAS-R score of 9 or above were randomly assigned to an experimental or control group. The patients in the experimental group received two psychological interventions (psychoeducation and progressive muscular relaxation) prior to dental treatment. During treatment, patients received another psychological intervention (music distraction). No psychological interventions were given to control patients. DAS-R and DCA scores were used to assess dental anxiety and concern, respectively, before treatment, after treatment, and at follow-up. Nonparametric tests were used for intergroup and intragroup statistical analyses. Results: Out of 64 patients surveyed, 33 (51.6%) had experienced dental anxiety. Of those, 2 were excluded, and 31 patients with a mean ± SD age of 41.2 ± 15.9 y completed the study. No intergroup differences in dental anxiety were found in terms of pretreatment, posttreatment, and follow-up treatment. The mean rank value of the dental anxiety score was less in the experimental group (13.53) than the control group (18.31), albeit not significant. More specifically, differences (Kruskal-Wallis χ2 = 14.82, P = 0.001, effect size = 0.33) were found in the experimental group for pretreatment, posttreatment, and follow-up treatment levels of dental anxiety for extraction (P = 0.01), injection (P = 0.02), and sound/vibration of the drill (P = 0.00). No significant intragroup differences between pretreatment, posttreatment, and follow-up treatment were found in the control group. Conclusions: The combined brief psychological interventions reduced dental anxiety. Relevance for patients: The psychological interventions of the present study could be applied right before or during dental treatment to reduce the dental anxiety of patients. However, additional research involving larger groups is needed to replicate the results of this pilot study.

Dental anxiety is a common problem and is considered an obstacle to providing quality dental care to patients. The present study was conducted to determine the prevalence of dental anxiety among patients under going restorative procedures in a university dental clinic, to determine the effect of a combination of psychological interventions (psychoeducation, relaxation therapy, and modeling technique) in reducing dental anxiety within and between experimental and control groups, and to identify differences in concern or anxiety towards dental procedures between pre-assessment, post-assessment, and follow-up assessment of experimental and control groups. Corah’s Dental Anxiety Scale, Revised (DAS-R) measured dental anxiety prevalence, and the Dental Concerns Assessment (DCA) identified factors causing dental anxiety. Patients experiencing dental anxiety were randomly assigned into an experimental or control group. Experimental group patients (n=15) received a 45-minute session of a combination of psychological interventions to reduce dental anxiety, whereas control group patients (n=15) received dental treatment as usual from general dental practitioners. A t-test and One-way analysis of variance were used for analyses. Results show that out of 65 patients, 41 had dental anxiety (prevalence 63.1%). Experimental group patients showed significant reduction in the post-assessment and follow-up DAS-R scores (F=18.85, P=<0.01) compared with pre-assessment scores. Significant reductions in post-assessment DCA scores were found for extraction, injection, and sound or vibration of the drill for the experimental group compared with pre-assessment scores (P<0.03). Over all, the combination of psychoeducation, relaxation therapy and modeling technique was effective at reducing dental concern and anxiety of dental procedures.