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ePaper created 2014-07-29, 09:08:59 | version 1.30.01
I overview 26 I implants2_2014 of DICOM data sets with the digital capture of the associated surface structures, e.g. anatomical model. With the situation model the real surface profile is obtained. If an aesthetic modelling (wax- up) is scanned and matched additionally, the plannedpositionoftheimplantsbothinaxialdirec- tionaswellasinmesial/distalorientationcanbede- termined optimally (Figs. 1, 2a & b). 3-Ddatamatching The comparison of the real positions of the in- serted implants in the jaw with the virtual planning isdonebymatchingthe3-DX-rayplanningcaptur- ingwiththepost-op3-Dpicture.Hereitisirrelevant whether the planning and the post-op 3-D captur- ingcomefromthesamedevicetype(DVT/CT)ornot. This method also allows for a standardised follow- up (Fig. 3). DICOMandSTLdatamatching For the manufacturing of surgical templates, for models to produce temporary restorations in navi- gated implantations and planning of definite den- tures(backward-planning)matchingdatasetsfrom Fig. 3_Post-surgical matching; inserted implant (left), transition with virtual implant (middle), with virtual implant with abutment (right); from gingiva line situation model (yellow). Fig. 4a_STL mesh of situation model with inserted drilling sleeves; drilling sleeves separately (top left). Fig. 4b_STL mesh of situation model with laboratory implant analogs; laboratory implant analogs separately (top left). Fig. 5_Model replica of SLT-data set with: a) surgical drilling sleeves on fabricated guides, b) designed laboratory implant analogs, c) implemented real abutments. Fig. 6_Calculated OPG from CBCT data and planned implant positions; arrows: planning under still existing dentures. Fig. 7_Situation 4th quadrant of Figure 6 including planned implant positions and abutments (parallelised). Mesh of the situation model (red) and wax-up (green). Fig. 3 Fig. 4a Fig. 4b Fig. 5a Fig. 5b Fig. 5c Fig. 6 Fig. 7