An erroneous diagnostic wax bite can lead to improper positioning of the upper jaw during bimaxillary surgery. In addition, postoperative malocclusions that are out of orthodontic range often are initiated perioperatively by insufficient surgical control over interdigitation, overjet, overbite, and control MK-8776 of the midlines. The objectives of this study were to investigate whether wax bites can be used effectively in patients undergoing
bimaxillary operations. In 5 (10%) of 50 patients, the wax bite did not fit properly. Based on these preliminary results, we believe it would be prudent to build safety measures into the treatment of patients who require bimaxillary surgery. If the wax bite does not fit properly at the beginning of surgery, navigation tools could be used to overcome inaccuracies resulting from the wax bite.”
“Objective: Three-dimensional analysis of video-oculograms can be used to calculate Listing plane for patients and experimental subjects. Listing plane reflects the head’s orientation with respect to gravity, which suggests that the plane is derived
from otolithic vestibular input, itself, or from a gravity-oriented internal model constructed through integration of visual, see more vestibular, and proprioceptive sensory inputs. The goal of this study was to determine whether the Listing plane can serve as a parameter for evaluating static (peripheral or central) vestibular function.
Study Design: Prospective study.
Setting: Tertiary referral center.
Patients: Healthy subjects and patients with unilateral vestibular schwannoma without any previous treatment.
Intervention: Diagnostic.
Main Outcome Measures: Video-oculograms were recorded
from healthy subjects (aged 36.8 +/- 6.3 yr) and from patients (aged 60.3 +/- 7.5 yr) during voluntary gaze with the head in an upright or each-side-down orientation, and the thicknesses of the calculated Listing planes were then compared.
Results: Results revealed thickening of the Listing plane in patients only when the head was in an impaired-side-down orientation (1.250 +/- 0.795 and 1.074 +/- 0.759 degrees in the right-and left-side-down ABT-263 head orientations in healthy subjects versus 2.222 +/- 1.237 degrees in the impaired-side-down orientation in patients), and this thickening correlated with caloric weakness. By contrast, neither the sensation of postural instability nor postural disturbance in force platform recordings contributed to the thickness of Listing plane.
Conclusion: The thickness of the Listing plane could be a novel parameter for quantitatively evaluating static vestibular (otolithic) function, although central compensation might exist.”
“Lymphangioleiomyomatosis (LAM) is a rare, systemic disorder that predominantly affects women.