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In late 2010, Straumann introduced a scannable abutment called a “scanbody,” which allowed for the taking of a digital implant impression. We needed this option to be available for most commonly used implant systems, however. At this time, Straumann only works with iTero (Align Technology Inc., formerly Cadent Inc.; San Jose, Calif.). A dental laboratory in Canada, 5 Axis Dental Design Center, has since taken the concept further by developing scannable abutments that are compatible with implant systems from most of the major implant companies, allowing dentists to submit digital impressions for CAD/CAM design and milling of implant abutments and fixed restorations. However, at the time of this writing, they too can only use the iTero scanner. 7 In February 2012, Glidewell Laboratories introduced intraoral scanning abutments under its Inclusive ® line of implant products for implant systems from Astra Tech, Straumann, Neoss and Zimmer, as well as Certain ® (BIOMET 3i; Warsaw, Ind.), PrimaConnex ® (Keystone Dental; Burlington, Mass.), and Brånemark System ® , NobelActive and NobelReplace (Nobel Biocare; Yorba Linda, Calif.). These Inclusive Scanning Abutments are also available for the lab’s line of Inclusive Tapered Implants, and they can be used to create digital implant impressions with the available, compatible intraoral scanners, such as iTero, Lava C.O.S. ® (3M ESPE; St. Paul, Minn.), CEREC ® (Sirona Dental Systems Inc.; Charlotte, N.C.), IOS FastScan ® (IOS Technologies; San Diego, Calif.) and the soon-to-be-compatible E4D ® Dentist (D4D Technologies; Richardson, Texas). Heraeus projects to have a new intraoral scanner, the cara TRIOS ® , available this year. This is a rapidly developing field, and I would not be surprised if in the near future we see a greater number of compatible implant systems and more dental laboratories offering this service. When you compare the simple steps involved in capturing digital implant impressions using scannable abutments to conventional impression systems, the digital method is simpler, easier and makes you a better, happier and more productive dentist. Figure 1: Implant ready to be restored The following case example demonstrates the simplicity of capturing a digital implant impression using an Inclusive Scanning Abutment and CEREC Redcam acquisition unit with version 3.8 CEREC Connect* software to restore a Zimmer Screw-Vent ® implant. However, any of the previously mentioned chairside digital impression systems available today are compatible and can be used for this technique. Case Presentation The patient in this case is a 62-year-old male who needed the restoration of a Zimmer Screw-Vent 4.7 wide implant in the area of the right mandibular first molar (Fig. 1). The gingiva had healed around the healing abutment and was ready for the implant impression (Fig. 2). Figure 2: Implant with healing abutment *In April 2012, Sirona renamed its digital impression portal Sirona Connect. According to the company, the Sirona Connect portal, accessible via www.sironaconnect.net, is compatible with all existing versions of CEREC Connect. 46 www.chairsidemagazine.com
Figure 3: Inclusive Scanning Abutment finger-tightened on implant Figure 6: Additional information tab in CEREC Connect software Figure 4: Scans for digital impression Figure 7: Fine-tuning the design with Glidewell Laboratories Figure 5: Digital models correlated with buccal bite Figure 8: CAD/CAM abutment try-in Scannable Abutments: Digital Impressions for Dental Implants47
Page 1: Chairside® A Publication of Glidew
Page 4 and 5: Contents 49 Case Report: The Creati
Page 6 and 7: Letters to the Editor Dear Dr. DiTo
Page 8 and 9: Contributors Michael C. DiTolla, DD
Page 10 and 11: Numbers by the 2 26% Percentage of
Page 12 and 13: Dr. DiTolla’s CLINICAL TIPS PRODU
Page 14: Dr. DiTolla’s CLINICAL TIPS PRODU
Page 17 and 18: Photo Essay The Pursuit of BruxZir
Page 19 and 20: Figure 5: This is the shade taken f
Page 21 and 22: Figure 11: Because of the pressure
Page 23 and 24: Figure 17: On the lingual, I cut th
Page 25 and 26: Figure 23: I make my next depth cut
Page 27 and 28: Figure 29: Toward the end of the pr
Page 29 and 30: Figure 35: The next step of the Rev
Page 31 and 32: Figure 41: The bottom cord provides
Page 33 and 34: Figure 47: The BruxZir crowns fit w
Page 35: Figure 53: I fill the BruxZir crown
Page 39 and 40: Interview with Dr. Dan Fischer - IN
Page 41 and 42: give you one-fourth to one-half tha
Page 43 and 44: ourselves darn hard, it’s still n
Page 45: one job I can think of in Western c
Page 50 and 51: Our last step was to select Glidewe
Page 52 and 53: Strassler has written extensively o
Page 54: Dr. Len Boksman formerly was direct
Page 57 and 58: SPEED DENTISTRY Fast Is Better —
Page 59 and 60: apidly would lead to more mistakes
Page 61 and 62: 7. Move faster and have your staff
Page 63: There is no one method for speed de
Page 66 and 67: centrals at the current length or s
Page 68: Retraction cord was used to gently

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