Till about three decades ago conventional complete as well as removable partial dentures was the only option to restore lost teeth , except for the short span edentulous areas where fixed partial dentures could be given . There have been various types of implants and different materials which have been used in past without much success.The development of titanium implants has been a major breakthrough in dental implantology.Conventional dentures have many disadvantages .Retention ,stability and support leave much to be desired in these dentures.Moreover a large area coverage is required.This...