No abstract

The aim of the present study was to compare hemodynamic changes using midazolam 7.5 mg and diazepam 10.0 mg during the surgical removal of symmetrically positioned third molars. A prospective, randomized, double-blind, clinical trial was carried out involving 120 patients divided into three groups: Group 1 (diazepam and placebo), Group 2 (midazolam and placebo), and Group 3 (diazepam and midazolam). Each subject underwent two surgeries on separate occasions under local anesthesia. The following parameters were assessed at five different times (T0, T1, T2, T3, and T4): systolic, diastolic, and mean blood pressure (SBP, DBP, and MBP, respectively); heart rate (HR); oxygen saturation (SpO(2)); rate pressure product (RPP); and pressure rate quotient (PRQ). Statistically significant differences were found regarding heart rate at T2 and T3 (p < 0.005) in Group 2, with a higher rate occurring during midazolam administration. Moreover, significant differences in rate pressure product were found at T2, T3, and T4 in this group, with higher values also occurring during midazolam administration. In Group 3, significant differences in diastolic blood pressure were found at T3 and T4, with higher values occurring during diazepam administration, whereas a higher heart rate occurred at T3 with midazolam. Midazolam 7.5 mg and diazepam 10.0 mg exert an influence on some hemodynamic parameters without perceptible clinical changes in healthy patients undergoing lower third molar surgery.

No abstract

The aim of the present study was to assess the clinical and radiographic repercussions of surgically assisted maxillary expansion on the septum, nasal cavity and nasal conchae. The sample was made up of 15 patients with skeletal maturity (9 females and 6 males between 16 and 45 years of age) and maxillary transverse deficiency. Assessments were performed through anterior rhinoscopy and frontal cephalometric radiographs on three occasions: (T0) preoperative period, (T1) locking of the expander and (T2) six months following the locking procedure. An increase was observed in the basal portion of the pyriform aperture and distances between the lateral wall of the basal portion of the pyriform aperture and the septum. The radiographic exam revealed that the nasal septum did not undergo any statistically significant change in its position. Moreover, no significant changes in the position of the nasal septum or nasal conchae were detected throughout the three evaluation times. The results suggest that surgically assisted maxillary expansion is capable of widening the basal portion of the pyriform aperture, with little repercussion on the anterior position of the nasal septum and inferior nasal conchae.

No abstract