Framework-Reinforced Single-Implant-Supported Overdenture – A Review

Implant-supported overdenture as a clinical alternative has improved the quality of life of the edentulous population as it has diminished many of the problems associated with conventional dentures by providing improved retention, stability, function, aesthetics, and physical and emotional health. Greater support and stability of the implant-borne prosthesis is associated with improved bite force and oral function for overdentures when compared with conventional complete dentures. A single-implant mandibular overdenture significantly increases the satisfaction and quality of life of patients with edentulism. The single-implant-retained overdenture has the additional advantage of being less expensive and invasive than a two-implant-supported overdenture but has a high incidence of fracture of the acrylic resin base at the point of the implant. Incorporation of a metal framework, metal reinforcing mesh, or woven or fibreglass-impregnated mesh have been recommended to improve resistance to denture fracture during function. This article presents different frameworks that are specifically and predictably suspended within the denture base as a retentive device to decrease fracture susceptibility of implant-supported overdentures.