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A 60-year-old man has lost a lower right FPD (Fig.1). The ridge at #30 is wide. To control implant spacing, PVS impression will be taken for guided surgery. Use the residual roots at #31 as a distal anchor tooth to finish implant placement at #30. After extraction, use implant anchor at #30 and finish implant placement at #31.
Xin Wei, DDS, PhD, MS 1st edition 08/02/2018, last revision 08/02/2018