A 2 mm drill is used to initiate osteotomy in the mesial socket, followed by inserting a parallel pin (Fig.3).  The latter is either incompletely inserted or displaced (from its osteotomy site, yellow dashed line) during X-ray taking because of 3 mm deep osteotomy.   After use of 4.8 mm Magic Drill, a 5 mm tap drill does not achieve stability, whereas a 5.5x9 mm dummy implant does (Fig.4).  A 5.5x11 mm IBS implant is placed with 50 Ncm with a 6x4(4) mm abutment and bone graft (Fig.5 *).  The Inferior Alveolar Canal, unclear in the last 2 PAs (Fig.4,5), is shown in the postop panoramic X-ray (Fig.6 red dashed line).

Return to Parallel Pin Last Next Xin Wei, DDS, PhD, MS 1st edition 07/25/2017, last revision 08/20/2019