implants - international magazine of oral implantology International Edition

I industry report Fig. 1_Initial situation. Fig. 2_Radiographic status after periodontal healing. Fig. 3_Clinical situation after periodontal healing. Figs. 4-6_Clicinal and radiographic status with depth gauges in situ immediately after extraction. _Introduction Inthepast,therestorationofnarrowtoothgapswith Straumann® Soft Tissue Level implants (maxillary lat- eral incisors/mandibular incisors) was only possible with the Straumann® Narrow Neck Implant (NN). Due totheprevailingexternal,hexagonalconnectiongeom- etryandcorrespondinglylargerdimensionedabutment components it was somewhat difficult to achieve hy- gienic and aesthetically demanding restorations, par- ticularlyintheanteriorregionofthemandible.Thenew Straumann®NarrowNeckCrossFit®implant(NNC)now offers an established internal taper connection which allowsmoreintricateprostheticworkintheemergence profileregion.Duetotheharderimplantmaterial—NNC made of TiZr (Straumann® Roxolid®) vs. NN made of pure titanium grade 4, cold-worked—one can expect multi-unitbridges,asdescribedinthiscase,toalsohave a better long-term prognosis from a biomechanical pointofview. _Initial situation At the beginning of the treatment, the patient was 48yearsoldandingoodgeneralhealth.Fordecades,the patient had suffered from a severe, aggressive, gener- alised periodontitis (type III B, Fig. 1), which could be healed completely prior to implant restoration (Perio- Healing™Concept;Fig.2). _Procedure Treatmentplanning At first, the diseased anterior mandible was to be healed in a regenerative and biological manner and without bone replacement materials, among others Immediate implant placement with the NNC implant Author_Joachim S. Hermann, Switzerland 38 I implants4_2013 Fig. 5 Fig. 6 Fig. 2 Fig. 3 Fig. 4 Fig. 1