Abstract
The aim of this study was to compare the evaluation of two groups of denture wearers following specific parameters at 6 and 12 month after the treatment..The study group included 15 patients with Cr-Co alloy skeletal dentures with metallic crowns with distal occlusal clasps and the base of methyl polymethacrylate (PMMA) and 15 with partially flexible dentures made of super-nylon polyamide resin. Based on the evaluation of these dentures, the 7 clinical parameters stated, over a period of 18 months and within the limits of this study, it can be concluded that partial removable dentures made of nylon-Valplast superpolyamide can be considered as a viable option to Cr-Co alloy.
Highlights
The aim of this study was to compare the evaluation of two groups of denture wearers following specific parameters at 6 and 12 month after the treatment..The study group included 15 patients with Cr-Co alloy skeletal dentures with metallic crowns with distal occlusal clasps and the base of methyl polymethacrylate (PMMA) and 15 with partially flexible dentures made of super-nylon polyamide resin
Based on the evaluation of these dentures, the 7 clinical parameters stated, over a period of 18 months and within the limits of this study, it can be concluded that partial removable dentures made of nylon-Valplast superpolyamide can be considered as a viable option to Cr-Co alloy
Denture base biomaterials are subjected to many different types of stresses, including compressive, tensile, and shear stresses, and most fractures develop during function by the repeated masticatory forces
Summary
The aim of this study was to compare the evaluation of two groups of denture wearers following specific parameters at 6 and 12 month after the treatment..The study group included 15 patients with Cr-Co alloy skeletal dentures with metallic crowns with distal occlusal clasps and the base of methyl polymethacrylate (PMMA) and 15 with partially flexible dentures made of super-nylon polyamide resin. The recent improvement of nylon thermoplastic resins presents these as an alternative material that could overcome the challenges of skeletal dentures with metallic bases [14] They have been introduced as a superpolyamide in which the resin polymers are armed with glass fillers in order to produce a material that is more stable in nature and provides resistance to aging of the polymer [15,16,17,18]. This material is claimed to have greater resistance to wear, flexibility, fatigue strength, dimensional stability, wear characteristics and solvent resistance. The present study pursued several clinical objectives as follows: dentures evaluation for 30 patients; comparison of specific parameters at 6 months and 12 months after treatment
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