Effect of different palatal vault on fracture resistance
Comparative analysis of effect of different palatal vault on fracture resistance of 2 different dentutre base materials
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Background: Poly (methylmethacrylate) has been established as principal material in denture base construction due to its good overall processing as well as user friendly properties. Nevertheless it is generally recognized that despite fulfilling aesthetic requirements, the impact and fracture strength of poly (methylmethacrylate) are not entirely satisfactory and this is reflected by the expenditure on a large number of denture repairs annually. Objectives: To compare the fracture resistance of palatal denture bases made from two commercially available heat polymerized acrylic resin denture ba...
Background: Poly (methylmethacrylate) has been established as principal material in denture base construction due to its good overall processing as well as user friendly properties. Nevertheless it is generally recognized that despite fulfilling aesthetic requirements, the impact and fracture strength of poly (methylmethacrylate) are not entirely satisfactory and this is reflected by the expenditure on a large number of denture repairs annually. Objectives: To compare the fracture resistance of palatal denture bases made from two commercially available heat polymerized acrylic resin denture base material in different palatal vault configurations. Conclusion: There is a direct relationship between the strength of the denture base and the palatal vault configuration. The shallow palatal vault base is inherently weaker and less resistant to fracture than medium and deep palatal vault. It¿s recommended to use a reinforced PMMA denture base or metallic denture base in shallow palatal vault.
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