After cleaning the root surface with a surgical curette, a 1.6 mm pilot drill is used to start osteotomy (O) between the mesial (M) and distal (D) roots, followed by a marking bur and 3.8 mm Magic drill 13 mm deep (Fig.1,2). 

Osteotomy Between Roots Last Next

Xin Wei, DDS, PhD, MS 1st edition 08/08/2016, last revision 03/29/2021