Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2015-03-06, 14:42:46 | version 1.33.01
I 47 special _ digital technologies I CAD/CAM 1_2015 to final completion the dental lab can expect to have dental lab work amounting to 6–8 hours. This does not include pick-up and delivery times for commuting between the dental lab and the dental practice. Even after denture incorporation there is often rework, which is time-consuming and not included in the service fee. The conventional workflow (Fig. 5) for making a full denture therefore positively cries out for an approach to address the last bulwark of the con- ventional dental process chain and make a digital solution available. _The future of the full denture is digital That is definite. Although nowadays there are ways of simplifying individual work steps with a scanner and a CAD/CAM milling machine (pros- thesis baseplate or basing arches made from in- dustrially prefabricated blanks), consideration of theprocesschainasawholehassofarbeenmiss- ing. This is the approach adopted in the following illustrated solution with a full denture based on completely digital development and production. The entire solution concept is based on the prin- ciple of backward planning. In real terms this means that a full denture completed by a master craftsman is customised to suit the patient's oral situation, with just one appointment! Very soon the production of a full denture will take place in a fully digital process—from digital impression taking to production, completely devoid of dust and plaster. Unfortunately the digital scanning systems available at present are not yet able to provide the option of comprehensive collection of oral situation information in a single appoint- ment,butitisdefinitelyonlyamatteroftime.Un- til then the jaw relation, palate, centric relation and aesthetics will be recorded by analogue means and then transferred to the digital system. By this method, all the data for making the pros- thesis later is collected in just one appointment. The process is followed by comparing the digi- tal data with a prosthesis database, selecting the appropriate milling blanks with previously poly- merised dental arches, and the modelling of the gums, which vary from patient to patient. After transferringittotheCAMmoduleallthathastobe done is mill the respective maxillary/mandibular pair. That is followed by finalisation in the dental Figs. 7 & 8_BDLoad (maxillary and mandibular milling blank in occlusion, available in various sizes) before milling process. Figs. 9_Process-integrated BDCreator CAD Software. Fig. 10_BDLoad, during milling process. Fig. 10Fig. 9 Fig. 8Fig. 7 CAD0115_42-48_Merz 02.03.15 12:57 Seite 6 CAD0115_42-48_Merz 02.03.1512:57 Seite 6