Post-cementation panoramus shows that the distal 3 threads are not covered by the bone and that the crown/implant ratio is 5:3 (Fig.8 (8.5 months postop)).  Implants are recommended at #3 and 30 (Fig.9).

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Xin Wei, DDS, PhD, MS 1st edition 11/05/2015, last revision 09/05/2019