A 5x8 mm drill is used before placement of a 5x12 mm implant with insertion torque >50 Ncm (Fig.5, underprep).  The implant is placed ~ 1 mm subcrestal mesially and equicrestal distally (Fig.5).   

Implant Thread Exposure

Xin Wei, DDS, PhD, MS 1st edition 09/30/2015, last revision 02/23/2018