Figure 9From: Maxillary reconstruction to enable implant insertion: a retrospective study of 181 patientsDensity of the bone after a sinus grafting procedure compared with a Lefort 1 technique. The density is sometimes less important with the Lefort 1 than in a sinus lift as we can see here. 9A – Sinus grafting. 9B – Lefort 1.Back to article page