A dental attachment assembly, comprising: a denture attachment housing for securing with a dental appliance, the denture attachment housing having an end wall and a peripheral wall extending from the end wall and having an open end defining an inner cavity, the end wall having a threaded bore; an abutment configured with an outer opening and a socket extending inward from the outer opening; and a retention member having opposite first and second ends, a threaded portion at the first end configured for threaded engagement in the threaded bore of the end wall of the denture attachment housing, a shaft extending from the threaded portion. and an enlarged head at the second end which is frictionally detachably attachable with the socket of the abutment to form a frictional fit between the head and the socket and to retain the dental appliance and abutment, wherein the shaft has an enlarged annular flange, positioned at a predetermined spacing below the threaded portion of the retention member, which engages the end wall of the cavity when the threaded portion is fully engaged in the threaded bore, wherein the annular flange extends perpendicular to an axial direction of the shaft and engages an opposing surface of the inner cavity of the denture attachment housing, wherein the peripheral wall of the denture attachment housing has a tapered outer surface which tapers outwards in a direction towards the open end; and a healing cap configured for releasable engagement with the abutment during healing, the healing cap having a first end, a second open end, an outer wall extending from the first end to the second end and configured for engagement over the outer surface of the abutment, and a stem having an enlarged end portion configured for releasable snap engagement in the socket of the abutment, and a processing cap and a waxing cap configured for attachment over the denture attachment housing during processing of a dental appliance. a denture attachment housing for securing with a dental appliance, the denture attachment housing having an end wall and a peripheral wall extending from the end wall and having an open end defining an inner cavity, the end wall having a threaded bore; an abutment configured with an outer opening and a socket extending inward from the outer opening; and a retention member having opposite first and second ends, a threaded portion at the first end configured for threaded engagement in the threaded bore of the end wall of the denture attachment housing, a shaft extending from the threaded portion. and an enlarged head at the second end which is frictionally detachably attachable with the socket of the abutment to form a frictional fit between the head and the socket and to retain the dental appliance and abutment, wherein the shaft has an enlarged annular flange, positioned at a predetermined spacing below the threaded portion of the retention member, which engages the end wall of the cavity when the threaded portion is fully engaged in the threaded bore, wherein the annular flange extends perpendicular to an axial direction of the shaft and engages an opposing surface of the inner cavity of the denture attachment housing, wherein the peripheral wall of the denture attachment housing has a tapered outer surface which tapers outwards in a direction towards the open end; and a healing cap configured for releasable engagement with the abutment during healing, the healing cap having a first end, a second open end, an outer wall extending from the first end to the second end and configured for engagement over the outer surface of the abutment, and a stem having an enlarged end portion configured for releasable snap engagement in the socket of the abutment, and a processing cap and a waxing cap configured for attachment over the denture attachment housing during processing of a dental appliance.