Construction of complete dentures with adequate retention is a complex procedure. Various techniques have been tried to improve the retention of dentures. Use of suction cup in maxillary denture is one of the techniques to improve retention. Suction cup provides retention and stability by inducing negative pressure on the mucosal surface. Palatal Suction cups which provide high retention are no...

INTRODUCTION Rigid endoscopes, now available in varying angles (ranging from 0° to 20°), have given otolaryngologists unparalleled visualization of the paranasal sinuses. However, visualization without proper instrumentation to access difficult-to-reach areas can make sinus treatment frustrating and ineffective. Suction access to different areas within the nose and sinuses is not a straightforw...

In this study, we aim to develop a narrow-diameter and long-bore device for minimally invasive surgery that achieves the simultaneous cutting and suction of body tissue such as the diseased part of an organ. In this paper, we propose a screw made of a thin metal plate, and we developed a prototype device using this screw. For smooth operation, the suction performance must be superior to the cut...

OBJECTIVES The inflammatory response after cardiac surgery is characterized by a profound release of pro- and anti-inflammatory cytokines. Recent data suggest that the balance between pro- and anti-inflammatory cytokines is of greater importance than the absolute levels. Retransfusion of unwashed cardiotomy suction blood contributes to the inflammatory response, but the balance between pro- and...

A spectrophotometer cuvet is described which is emptied by suction without removal from the instrument. The use of this cuvet saves time and minimizes the chance of breakage. Data from C " measurements and absorbances of a dye solution show minimal retention error from successive specimens. expended in determining the absonbances of a large series of individual samples in a spectrophotometer ca...

This is a report of a case of an egg recovery procedure completed with manual suction instead of the automated negative pressure suction. A 35-year-old woman who was undergoing in vitro fertilization (IVF) treatment had to undergo oocyte recovery using manual suction through a syringe instead of the automated negative pressure suction systems because of the failure of both the initial and repla...

Both investigators had personally experienced situations when they were let down by emergency suctioning equipment on the wards: due to either lack of, or operator inability to use, equipment. Failings in emergency suction have been highlighted in a recent National Patient Safety Agency signal. We focused on improving the usability of cardiac arrest trolley suction: a complex process involving ...

The predominant mode of distress for unbound pavement layers is the permanent deformation of the layer either through gradual deformation or rapid shear failure of the layer. Several researchers have related both these forms of permanent deformation to the ratio of the imposed stress over the shear strength of the material. Conventionally, the shear strength of the material was characterised wi...