Abstract

BARBALHO, Jimmy Charles Melo  and  VASCONCELLOS, Ricardo José de Holanda. Dental Anxiety Control: Study Comparing oral sedation with Midazolam and conscious sedation with Nitrous oxide associated with oxygen in patients undergoing lower third molar extractions. Rev. cir. traumatol. buco-maxilo-fac. [online]. 2015, vol.15, n.4, pp. 67-68. ISSN 1808-5210.

The study objective was to comparatively assess the effect of midazolam 7.5mg P.O. and conscious sedation with Nitrous oxide associated with oxygen at 50% in patients undergoing lower third molar extractions on the change in the anxiety level of patients by means of salivary cortisol dosage, on oxygen saturation level, on heart rate, on blood pressure, and on production of anterograde amnesia, as well as to assess the Corah’s Dental Anxiety Scale (DAS), Anxiety Visual Analogue Scale (VAS), Anxiety Verbal Scale and Spilberger State-trait Anxiety Inventory (STAI) for the detection of dental anxiety. It was carried out a split-mouth study, in which twenty- eight male patients underwent lower third molar extraction under local anesthesia and sedation with midazolam and nitrous oxide associated with oxygen. Objective (salivary cortisol dosage, oxygen saturation, heart rate and blood pressure) and subjective (Corah’s Dental Anxiety Scale, Spilberger State-trait Anxiety Inventory, Anxiety Visual Analogue Scale, and Verbal Anxiety Scale) data have been obtained. The results showed that both sedation methods used produced beneficial effects and were safe in reducing pre-operatory anxiety, showing no significant cardiovascular or respiratory effects, and midazolam 7.5 mg P.O. was more effective in reducing the salivary cortisol. Regarding the anxiety scales employed, it was found that the Corah’s Dental Anxiety Scale was more indicated to assess dental anxiety.

Keywords : Dental anxiety; Corah’s Scale; Salivary Cortisol; Nitrous oxide; Midazolam; Third molar..