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). There is microthread exposure 2 months postop (Fig.8).
Xin Wei, DDS, PhD, MS 1st edition 09/30/2015, last revision 02/23/2018