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34 DENTAL TRIBUNE Middle East & Africa Edition | January-February 2015cad/cam From design to fabrication in a few minutes Mrs. Esther Moll, KaVo application technician and dental technician, presents a design made with the ARCTICA-Software package By Mrs. Esther Moll T he DentalDataBase user interface (Figure 1) shows all individual steps, from order creation, scanning, de- sign to data transfer to the mill- ing machine. To illustrate the rapid and simple realisation of a design, the description if the “step-by-step wizard” contains the time code. Tooth 21 is to be supplied with a crown. Design inputs are the current situation (Figure 2) and the mirror tooth 11. The impression of the cur- rent situation is taken and the scanned data are stored. The tooth is prepared, the impres- sion is scanned. 02:23 p.m. - Data are stored. 02:26 p.m. - Data of the prepared 21 and the impression of the current situation is uploaded. The crown is positioned on the prepared stump (Figure 3). 02:27 p.m. – The step-by-step wizard leads to the next step of the process. The preparation line is created by the software via “1-click” (Figure 4). 02:28 p.m. – The software shows the calculated restoration shape (stump, Ffigure 5). This propos- al by the software could still be individualized or changed. 02:29 p.m. - Mesial and distal contact points (Figure 6) are set. Figure 1: The DentalDataBase Figure 2: Initial situation and defini- tion of target situation Figure 3: Positioning Figure 5: Calculated restoration shape Figure 7: Software places a data- base tooth Figure 9: Adaptation of database tooth Figure 11: Trimming the antagonist Figure 4: Intelligent preparation line determination Figure 6: Contact point Figure 8: Correction of database tooth Figure 10: Query for further adap- tation requests Figure 12: Crown calculated – ready for fabrication Figure 13: The “KaVo Software Suite” 02:30 p.m. - The software has positioned the database tooth (Figure 7). 02.30 p.m. – The step-by-step wizard offers to adapt the data- base tooth (white) to the situ- ation (turquoise). The process step in the box (right) is called “Adaptation of model teeth”. The software calculates the cor- rection (Figure 8). 02:30 p.m. – Adaptation of the design is complete (Figure 9). 02:31 p.m. - This process step (figure 10) would allow addi- tional changes or corrections. Proceed to the next process step with the “Continue” button. 02.31 p.m. – The system offers to trim the antagonist (purple) (Figure 11). Contact points to the adjacent teeth can be created or reduced. 02:33 p.m. – The MultiCAD soft- ware package now calculates the anterior tooth crown, com- piles the data and generates the milling data (Figure 12). From now on the order for mill- ing the crown can be issued. Ac- cess the “KaVo Software Suite” via the “CAM” button in the DentalDataBase. This controls the Engine. Use the start menu to select fabrication job and tool magazine and completes the or- der (Figure 13). “With a little practice “simple” individual crowns can be done in five minutes” In the interview below with KaVo, dental technician Esther Moll discusses the ARCTICA System’s further possibilities. By KaVo D ental technician Esther Moll has been an appli- cation technician with KaVo Dental since 1 October 2007 and works with KaVo Ev- erest, KaVo multiCAD and KaVo Arctica. During product pilot phases, she acts as expert con- tact person for validations, cor- rection of bugs, software tests, etc. In addition, she complaint manager and works for interna- tional support. On the occasion of her user report, DZW spoke to Esthe Moll about the particu- larities of KaVo’s Arctica System. Q: Ms Moll, for a crown design to take barely ten minutes as described in the example, is this achievable for absolute Arctica professionals only? Esther Moll: Anyone who has sufficient knowledge to define a crown by its key anatomic features can do that. With a lit- tle practice “simple” individual crowns can be done in five min- utes. And this is not done at the expense of high quality or later functionality. How long does it take to learn to operate a software package such as KaVo-multiCADSoft- ware and what help does the software package itself offer? The KaVo-multiCAD-Software can claim to be very user- friendly. All basic functions can be learned within a day. This knowlegde is sufficient to design approx. 80 percent of all day-to- day prosthodontics tasks. The software guides its user through all required design steps so that operator error can almost be completely eliminated. If I am a dentist and I decide to use the Arctica-System in my in-surgery lab, do I have to fully commit from the begin- ning or could I start with indi- vidual elements of the Arctica system such as Arctica-Scan or KaVomultiCAD software? That is of course possible. The Arctica system features open architecture and is modular. There is the option to start with a scanner and CADSoftware and share designed parts through the system’s web portal with a lab or dental surgery that uses an Arctica or Everest machine and have them fabricated there. Which file formats can the multiCAD software handle? The multiCAD-Software can handle all STL files that are not encrypted. … and which materials can KaVo’s Arctica process? Are materials for temporary works being offered? All that is possible. The range of materials includes not one but a number of ceramic materials. That includes of course the high performance ceramic zirco- nium oxide, but also Vita Mark II with its more than 20 years of clinically proven track record in various options including multi-coloured blocks. There is, moreover, the option to process titanium, a material especially attractive for implant restora- tions and with many possibili- ties. The program also includes various plastics. Vita CAD-Temp is designated for temporary parts; in addition the glass-filled high performance polymer C- Temp with its bending strength of 500 Megapascals is available for long-term temporary parts. And finally there are C-Cast plastic or easy to mill waxes for use in conventional casting technology. The design of a single crown takes barely ten minutes. How long does the subsequent grinding process take in Ka- Vo’s Arctica-Engine? At the moment, a single crown is done in approximately 20 minutes – and this despite the five-axis technology, which is capable of fabricating even com- plex shapes. We are working on process optimizations that could lead to process times of ten min- utes. How much space will I have to allow for an Arctica system in my lab? Is a tabletop suffi- cient? Yes, a big advatage is its size - half a technician’s bench is easily sufficient. The Arctica- Engine’s dimensions of 30 1/2 x 23 1/4 x 23 inch (773 x 590 x 584 millimeters) and its installation depth of 20 2/3 incg (524 millim- eters) are indeed very compact. KaVo Dental GmbH Alexia Valera Tel. +971 4 550 8600 Mob. +971 56 1757141 E-Mail alexia.valera@kavo.com www.kavo.com/MEA Contact Information Engine’s dimensions of 301/2 x 231/4 x 23 inch (773 x 590 x 584 depth of 202/3 incg (524 millim- Tel. +97145508600 Mob. +971561757141