Influence of Education on Dental Anxiety and Fear in Mental Disorders after Viewing a Molar Extraction in Three Types of Mental Disorder Compared to Persons with No Mental Disorder.

Objective: The goal of this study is to validate the psychometric properties of the Modified Dental Anxiety Scale (MDAS) and the Dental Fear Scale (DFS) at three different times: seven days before, immediately after, and seven days after watching a video of surgical extraction of a lower third molar in a sample with four strata: anxiety disorder, adjustment disorder, mixed anxiety-depressive disorder, and no mental disorder ages 18-70 in a psychiatric clinic in Malaga. Methods: The Research Ethics Committee of the Virgen Macarena-Virgen del Rocío Hospitals approved the study. After being interviewed by a psychiatrist and subsequently completing the Hamilton Rating Scales for Anxiety and Depression, the participants were divided into 4 strata (60 persons in each). The influence of education level was then analyzed. Results: The scales demonstrated good psychometric properties, with higher MDAS and DFS scores for lower levels of education and mixed anxiety-depressive disorder. Conclusions: Patients who show higher levels of dental anxiety and dental fear will be those with lower education levels, as well as those who suffer from mixed anxiety-depressive disorder.

Analysis of psychic imbalance, caused by screening of a video of surgical extraction of a lower third molar in a sample of mental patients as compared to the general population.

Background: The goal of this study is to validate the psychometric properties of the Hamilton Rating Scales for anxiety and depression. These two scales will be used to analyze anxiety and depression, seven days before, after and seven days after screening of a video showing ex-traction of a lower third molar in four different strata of the sample: mixed disorder, anxiety dis-order, adaptive disorder, and no mental disorder. Material and Methods: A prospective study was performed of 240 Caucasian subjects ages 18-70 in a psychiatry outpatient clinic in Malaga. The study was ap-proved by the Research Ethics Committee of the University of Seville. Following interviews with a psychiatrist and completion of the Hamilton scales, the participants were divided into four levels, with 60 participants per group. The influence of sex and place of residence were analysed. Results: The scales showed good psychometric properties. At the three video screenings, the means were higher for women, persons from rural environments and persons with mixed disorder in the first instance and then anxiety disorder. Conclusions: Patients with mixed disorder experience a higher level of anxiety and depression than do patients free of mental pathologies. Key words:Anxiety disorder, adaptive disorder, dental anxiety, mixed anxiety-depressive disorder, surgical extraction.