الفهرس 
Title : a Comparison between biting force of heat cured polymethylmethacrylate and metal reinforced polyamide for mandibular complete denture : Randomized clinical trial
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Abstract
Aim of the study: To compare between biting force of mandibular complete denture constructed from two different materials; metal reinforced polyamide and conventional PMMA. Materials and methods: Twenty four completely edentulous patients. The patients were divided into two equal groups, group I received conventional maxillary and mandibular heat cured PPMA and group II received conventional heat cured maxillary denture and metal reinforced polyamide mandibular denture. Conventional steps for denture construction were followed until centric relation record for both groups. group II mandibular master cast was duplicated to refractory cast on which metal frame work with metal stopper was constructed to allow accurate repositioning of frame during injection of polyamide material. Dentures were delivered and occlusal adjustments for all patients in both groups was done before measurement of biting force. Patients of both groups were evaluated by biting force measurements at the time of prosthesis insertion as well as three and four weeks later by load star sensor. Results: There was no statistical significant difference in biting force between conventional heat cured PMMA and metal reinforced polyamide mandibular denture during all follow up periods