Lava Scan ST Tech Data Sheet - 6 Pages

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Catalogue excerpts

Lava Scan ST Scanner ™ Technical Data Sheet Description The 3M™ ESPE™ Lava™ Scan ST scanner is a non-contact, optical 3D-scanning device. The operating principle is based on fringe projection combined with triangulation methods. A fringe pattern is projected onto the model’s surface and imaged by a video camera under a certain angle. Different views are superimposed to get the entire surface which provides a high density of data for accuracy. The Lava™ Scan ST scanner is part of the Lava CAD/CAM system including a scanner, a milling machine (Lava™ Form), a sintering furnace (Lava™ Therm) and the respective materials Lava™ Zirconium Oxide (Lava™ Frame) and the veneering porcelain (Lava™ Ceram). Benets • The Lava Scan ST scanner has a much faster scanning time than the current Lava scanner (Lava Scan) • Excellent marginal t • Increased scan length of 47mm will accommodate a larger Lava Zirconium Oxide Frame which will be released in late 2007 • Can be used as a satellite scanner • Robust and reliable CAD/CAM process • The Lava Scan ST scanner guarantees an easy to use and safe working process

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The Lava™ Scan ST scanner accommodates all of the current indications for Lava Crowns and Bridges. In addition, the Lava Scan ST scanner is the platform to increase the span width for Lava bridges. Current indications: • Splinted crowns up to four units • 3 and 4-unit bridges with multiple abutments • 5 and 6-unit bridges with no more than two adjacent pontics and four prepared teeth • Cantilever bridges up to four units. No single abutments. Test Results_ Scanning Time: The scanning time of the Lava Scan ST scanner is 50% faster than the first generation Lava Scan scanner. In Figure la, the different...

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Test Results (cont.) Marginal Fit: The marginal t of the new and old scanning device has been compared (Figure 2a and 2b). Four different models of four splinted crowns have been scanned with the respective device, milled with the Lava™ Form milling machine and subsequently cemented on the scanned dies. The restorations were embedded in acryl and sectioned faciolingually and mesiodistally. A stereomicroscope and special analytical software (analysis, Soft Imaging System GmbH) were used to determine the marginal opening (MO) and absolute marginal opening (AMO) of the cross-sections for each abutment....

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Test Results (cont.) Scan Length: The new Lava Scan ST scanner was developed with an increased scan length of 47mm. The latest camera technology was used with a higher resolution leading to a larger scan volume. Scan window of Lava™ Scan Scan window of Lava™ Scan ST scanner 1st Quarter 2007 Scan window of Lava™ Scan ST scanner 4th Quarter 2007 Robustness: A lifetime simulation was used to test the robustness of the Lava Scan ST scanner. The long-term use of the scanner of more than 15 years (34 scanned restorations per day, 250 working days per year) was simulated with all mechanical devices in...

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Dental Lab Outsources to Authorized Lava Milling Center (ALMC) This is the current workow for Lava Crowns and Bridges. In this model, the dental lab does not invest in any hardware or software. Milling Center Model Preparation Dental Lab is an Authorized Lava Design Center The dental lab uses the Lava Scan ST scanner to scan and design the coping or bridge framework. The CAD le is electronically sent to the Authorized Lava Milling Center for milling and sintering. Model Preparation Milling Center

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Authorized Lava Design Center (ALDC) Plus Oven The ALDC purchases the sintering furnace. With this business model, the lab scans, designs and nishes the restoration. With this model, the level of design control by the ALDC is maximized. Milling Center Model Preparation Technical Specs Scan Window: Allows digitialization up to 6 units and a total length of 42mm. Total scan window 62 x 46mm Scan Time: Average scan time is 1.40 minutes for a single crown as well as for a 3-unit bridge Scan Type: Non-contact, optical scanner with fringe projection triangulation for high accuracy Scan Handling: Ergonomic...

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