CBCT shows that the bone density at #12 and 14 (400-500 Hounsfield units (HU)) is higher than that at #15 (200-300 HU).  Ridge split is successful when HU is <200 with smaller diameter implants. 

Fracture & Ridge Split Last Next

Xin Wei, DDS, PhD, MS 1st edition 12/14/2015, last revision 06/25/2017