The bridge will be sectioned between #30 and 31.  The mesial segment of the bridge is expected to separate from #29 post space; the mesial abutment is presumed to have vertical fracture (Fig.4 red line or root perforation due to oversized post (>)).  After intraligamental injection, extraction and no Antibiotic treatment, a narrow long implant (Fig.6,7: 3.8x15 or 13 mm) will be placed as mesial and lingual as possible to avoid the buccal bony defect (Fig.5 >; repaired with Osteotape or PRF membrane) and the Mental Loop (Fig.1 >).

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Xin Wei, DDS, PhD, MS 1st edition 06/03/2017, last revision 08/08/2021