Removable partial or complete overdentures supported by roots of natural teeth have more predictable prosthodontic outcomes as compare to conventional removable complete dentures or simple acrylic resin partial dentures (flipper) because of increased support, stability and retention and decrease in rate of residual ridge resorption due to presence of teeth(roots) and periodontal ligament. So preserving few remaining teeth/roots and fabricating an overdenture is always a better option as compare to extraction of remaining teeth and fabrication of acrylic RPD or denture.