“
“Purpose: To examine the separation of the pterygomaxillary region at the posterior nasal spine level after Le Fort I osteotomy in Class III patients.

Patients and Methods: The Study group consisted of 37 Japanese patients with mandibular prognathism and asymmetry, with maxillary retrognathism or asymmetry. A total of 74 sides were examined. Le Fort I osteotomy was performed without a pterygoid osteotome, with an ultrasonic curette used to remove Tariquidar interference at the pterygomaxillary region. Postoperative computed tomography (CT) was analyzed for all patients. The separation of the pterygomaxillary region and the location of the descending palatine artery were assessed.

Results: Although

acceptable separation between the maxilla and pterygoid plates was achieved in all patients, in exact separation of the pterygomaxillary junction at the posterior nasal spine level was found in only 18 of 74 sides (24%). In 29 of 74 sides (39.2%), the separation Occurred anterior to the descending palatine artery. in 29 of 74 sides (39.2%), complete separation between the maxilla find more and lateral and/or medial pterygoid plate was not achieved, but lower level separation of the maxilla mid pterygoid plate was always complete. The maxillary segments Could be moved to the postoperative ideal position in all cases.

Conclusion: Le Fort I osteotomy without an osteotome does not always induce an exact separation at the pterygomaxillary

junction at the posterior nasal spine level, but the ultrasonic bone curette can remove the interference

between maxillary segment and pterygoid plates more safely. (C) 2009 American Association of Oral PD173074 datasheet and Maxillofacial Surgeons”
“We test the feasibility of using nanostructured electrodes in organic bulk heterojunction solar cells to improve their photovoltaic performance by enhancing their charge collection efficiency and thereby increasing the optimal active blend layer thickness. As a model system, small concentrations of single wall carbon nanotubes are added to blends of poly(3-hexylthiophene): [6,6]-phenyl-C-61-butyric acid methyl ester in order to create networks of efficient hole conduction pathways in the device active layer without affecting the light absorption. The nanotube addition leads to a 22% increase in the optimal blend layer thickness from 90 nm to 110 nm, enhancing the short circuit current density and photovoltaic device efficiency by as much as similar to 10%. The associated incident-photon-to-current conversion efficiency for the given thickness also increases by similar to 10% uniformly across the device optical absorption spectrum, corroborating the enhanced charge carrier collection by nanostructured electrodes. (C) 2011 American Institute of Physics. [doi:10.1063/1.3633236]“
“Purpose: To report our experience with 106 cases of lip cancer.

Patients and Methods: We treated 106 patients with stages T1, T2, or T3 lip cancer (76, 22, and 8 cases, respectively).