Dentures in a SNAP: Based upon a patented split-shank post, the ball and socket attachment delivers all the benefits of the Flexi-Post for highest retention of full and partial dentures. The attachment can be placed without lab assistance providing a simple, inexpensive overdenture at chairside. Gives the practitioner the ability to perfect one technique for a variety of clinical situations. The system may be used with the patented EZ-Change keeper and cap insert system allowing, for "quick and easy" nylon cap replacement.