Six months post implant removal and bone graft, the patient returns for #29 implant placement with guide.  With Lidocaine and Septocaine each carpule (infiltration), the patient experiences pain when the last drill used is ~ 2 mm short of designed depth.  To make sure to have lingual subcrestal placement and avoid the Mental Loop, a 3.5x8.5 mm implant is placed (Fig.1,2 (3 mm shorter than the design)).

Shorter Implant Last Next

Xin Wei, DDS, PhD, MS 1st edition 02/14/2019, last revision 02/15/2019