الفهرس | Only 14 pages are availabe for public view |
Abstract This research was carried out on six complete edentulous patients to study the effect of different impression rnaterials, used for locating the neutral zone on neutralization of cheek and tongue pressures. For this purpose upper and lower modified acrylic occlusion rims were constructed. The rims were occluded together with upstanding flanges for supporting the impression materials . These includes tissue conditioner, Zn.o.E., rubber base impression materials. After tnodeling the iinpression buccal and lingual strain gauges were cemented in pre-determined impression surface and F.F.T. analyzer record was used to measure both cheek and tongue pressures as two separate strains once patient swallows. |