A removable denture system comprising a personalized support beam fixedly attached to an individual's alveolar ridge above the mucous membrane by a plurality of dental implants； a personalized denture conforming with dental parameters of the individual and having fixedly integrated within a bottom surface thereof a super-structure having a cross-section conforming with that of the support beam； and a denture locking arrangement for securely locking and unlocking the denture to the support beam, at substantial zero tolerance therebetween, and wherein one of the support beam and the super-structure is configured with one or more positioning grooves extending parallel to a path of insert (POI) of the denture, and the other of the support beam and the super-structure is configured with corresponding one or more laterally projecting positioning projections, each extending in register with a corresponding positioning grove and configured for snug sliding there within
