FEM analysis of single implant reaineded mandibular overdenture with four different attachment types: A review

Background: Dentistry science has evolved over the years. According to a 2012 report, submitted by epidemiology department, it was found that 62% people completely lose their teeth out of which 19.2% in mandibular area and 12.2% in maxilla. So the study is done with a specific focus on design of new attachment, in order to increase retention and stability of single implant retained overdentures used to conquer edentulism. Materials and Methods: An electronic search with the keywords like overdentures, implant, single implant overdentures, single implant vs two implant, biomechanical behaviour was carried out on Science Direct, Researchgate and Google Scholar. Open access articles were obtained whenever possible and other inaccessible articles were requested fromcorresponding authors. The referred articles in previous studies were also obtained or requested. Results: The search resulted intotal of 52 articles out of which 19 articles were within the specified criteria. Among the 19, 3articles wereon conventional dentures vs single implant overdentures, 4 compared the single implant overdentures and two implant overdentures, 2 are related to implant location, 3 articles discussed types of attachments, prosthetic maintenance of implants was studied in 3 articles, 2 articles were on immediate loading / early loading and 2 on biomechanical behaviour of single implants. Conclusions: The study concludes that single implant supported overdentures can be a cost effective solution for middle class people with same retention and stability like multiple implant supported overdentures.