Implant Longer than Planned

While the tooth #2 has a mesiodistal crack line with symptom (Fig.1 arrowheads, crown pending), the tooth #15 has a mesiodistal fracture (Fig.2).  Immediately preop 5x5 cm CBCT (Fig.3) confirms the palatal (P) fracture with palatal bone loss.  Although a 5x7.3 mm implant fits the site by design (Fig.4), a much longer implant is required to achieve primary stability past the sinus floor using IBS Magic Expanders (Fig.5,6 (20-30 Ncm; sinus lift with PRF membrane and allograft)).  In contrast, primary stability could not be obtained by engaging dummy implant to the socket walls.  A short implant without sinus lift is associated with less obvious complication such as fibrointegration.  The implant seems osteointegrated 4.5 months postop (Fig.7).  The abutment is changed to 6.5x4(5) mm before impression.  There is no bone loss 5 months post cementation (Fig.8 (11 months postop)).  It is the same 2.5 years post cementation (Fig.9,10).

Return to Upper Molar Immediate Implant, Prevent Molar Periimplantitis (Protocols, Table), Armaments 即种全程 Xin Wei, DDS, PhD, MS 1st edition 07/13/2018, last revision 07/02/2021