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The crown dislodges 4 months post permanent cementation. Still the patient complains of small crown without occlusal contact. Impression is taken for a new normal-sized crown. The new crown becomes loose 1 year 9 months post cementation (Fig.14). The teeth #14 and 15 remain unrestored. There is bone loss at #30 at the furca and around the coronal portion of the distal root.
Ideally the crown at #31 should be removed for redo. The unipost will be bonded with Panavia V5. Check the height of the abutment before bonding. Extend the margin as apical as possible and make a deeper retention groove. Use laser for gingivectomy PRN. Advise the patient to have implants at #14 and 15 as soon as possible.
Xin Wei, DDS, PhD, MS 1st edition 12/07/2017, last revision 12/09/2017