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International Journal of Implant Dentistry
Fig. 1 | International Journal of Implant Dentistry

Fig. 1

From: Influence of implant protrusion length on non-grafting osteotome sinus floor elevation with simultaneous implant: a 3- to 9-year retrospective study

Fig. 1

a Radiographic assessment. Reference lines were drawn as follows: (a) Implant longitudinal axis; (b) implant apex line: the most apical level of the implant, vertical to (a); (c) implant coronal line: the level of implant-to-abutment contact, vertical to (a); (d) Apical bone line: the most apical level of the new bone in the sinus, vertical to (a), at the mesial site (dm) and at the distal site (dd); (e) crest bone line: the most coronal level of bone-to-implant contact, vertical to (a), at the mesial site (em) and at the distal site (ed); (f) Sinus floor line: the most coronal level of sinus floor cortical bone, vertical to (a) , at the mesial site (fm) and at the distal site (fd). b Endo-sinus bone remodeling after non-grafting OSFE

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