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Influence of Fiber Reinforcement on the Properties of Denture Base Resins

Journal of Biomaterials and Nanobiotechnology 2013年第1期4卷 91-97页

作者： Rama Krishna Alla Suresh Sajjan Venkata Ramaraju Alluri kishore ginjupalli Nagaraj Upadhya Department of Dental Materials Manipal College of Dental Sciences Manipal India Department of Dental Materials Vishnu Dental College Bhimavaram India Department of Prosthodontics & Implontology Vishnu Dental College Bhimavaram Indi

Advances in the medical sciences along with rapid increase in the specialized and better treatment modalities, certainly prolonged the human life with a drastic increase in the number of elderly in the past few decades. Tooth loss is one of the manifestations of aging. Dentures and dental implants are the major prosthetic devices given to restore physiological and esthetic functions of oral tissues of edentulous or partially edentulous patients. Complete and partial dentures based on polymeric compositions are the most popular devices since the cost of dental implants and metal-base dentures are much higher. Among the polymers, poly (methyl methacrylate) (PMMA) is the most commonly used material for this purpose. Although, this material is not ideal in every respect, it is the combination of qualities rather than one single desirable property that accounts for its popularity and usage. One of the main drawbacks of this material is considered to be its poor mechanical performance. There have been several attempts in the recent past to address the problem of inferior mechanical properties of these materials. Generally, there are three ways which have been investigated to improve the mechanical properties of denture bases;search for or development of an alternative material to PMMA;chemical modification of PMMA;and the reinforcement of PMMA. Present article is a review of types of fibres reinforced in denture prosthesis and their effects on mechanical properties of denture prosthesis.

关键词： Poly (Methyl methacrylate) Metallic Fillers Fibres Elastic Modulus Impact Strength Fracture

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