Fig.1 (Preop palatal view): The tooth #9 is missing.  The pontic is splinted to #8 and 11.  The bond between #9 and 11 breaks often.  The tooth #8 is periodontally compromised with deep pockets and mobility.  To increase retention, the bridge is also bonded to #7.

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Xin Wei, DDS, PhD, MS 1st edition 02/03/2013, last revision 01/21/2019