COMPLEX CASE: Quadrant replacement with dental implants A 60-year-old healthy woman presented to the practice referred by her family dentist for a failing fixed dental prosthesis (bridge) in Quadrant 1 (8/X/X/5), and a crown on tooth #3 with a mesial cantilevered pontic #4 (Figs. 12 and 13). The four-unit fixed dental prosthesis had been dislodged multiple times and exhibited recurrent caries, open margins and suspected vertical root fracture. The long-term prognosis of the abutment teeth was deemed to be poor. After discussing a variety of options, a treatment plan was devised to extract teeth #8 and #5, section off pontic #4 and immediately place implants in the areas of #8, #6, #5 and #4. This would allow for the fabrication of a three-unit Fig. 15 Fig. 16 Fig. 12 Fig. 17 Fig. 13 Fig. 18 Fig. 14 66 JUNE 2019 // dentaltown.comhttp://www.dentaltown.com