Teeth on Other Side of Arch Block Handpiece

The ridge at #19 is slightly atrophic 5 months post socket preservation (Fig.1).  The bone is long enough to hold a 11.5 mm long implant.  There is no difficulty in inserting the corresponding drill (4.5x11.5 mm) into the metal sleeve, but the lower right posterior teeth prevent the implant handpiece from going downward completely when the handpiece accesses lingually.  Because of the extra manipulation, a 5x10 mm implant achieves insertion torque of ~ 20 Ncm (Fig.2).  The implant seems to be seated in the middle of the ridge (Fig.3).  The bone density mesial to the implant increases 5 months postop (Fig.4), whereas that distal to the implant remains low 9 months postop (Fig.5).  Bitewings taken 2.5 months post cementation (1 year postop, Fig.6,7) show subcrestal placement of the implant (advantage of guided surgery).  The implant appears to be well protected; the crestal bone seems to cover the implant plateau.  There will be little chance of thread exposure over years of use.  The trabecular pattern around the implant is similar to that around the roots of the tooth #30 one year 7 months post cementation (2 years 4 months postop, Fig.8).

Return to Lower Molar Immediate Implant, Armaments 位点保存/导板 Xin Wei, DDS, PhD, MS 1st edition 06/29/2018, last revision 11/07/2020