PDF Version - Glidewell Dental Labs
PDF Version - Glidewell Dental Labs
PDF Version - Glidewell Dental Labs
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Our last step was to select <strong>Glidewell</strong> Laboratories as the<br />
dental laboratory in the CEREC Connect software, and<br />
complete the detailed prescription for the simultaneous<br />
fabrication of the CAD/CAM custom abutment and crown<br />
(Fig. 6). I selected a titanium abutment and BruxZir ® Solid<br />
Zirconia crown. Before the lab began the milling process,<br />
the technician called as I had requested, and we fine-tuned<br />
the design (Fig. 7).<br />
The case arrived at my office nicely packaged and organized.<br />
I tried in and verified the fit of the CAD/CAM abutment<br />
(Figs. 8, 9), torqued it to the recommended specifications,<br />
and then cemented the BruxZir ® crown with very minimal<br />
adjustment (Fig. 10).<br />
Figure 9: Radiographic verification of seating of abutment<br />
Conclusion<br />
As I have done many times, I could have handled this<br />
case in-office with good results using soft tissue models, a<br />
prefabricated titanium abutment prepared extraorally and<br />
an IPS e.max ® crown (Ivoclar Vivadent; Amherst, N.Y.), but<br />
why would I want to spend more time doing laboratory<br />
work when I have the option of being more productive<br />
and delivering state-of-the-art dentistry to my patients?<br />
When you compare the simple steps involved in capturing<br />
digital implant impressions using scannable abutments to<br />
conventional impression systems, the digital method is<br />
simpler, easier and makes you a better, happier and more<br />
productive dentist. 8 CM<br />
Dr. Carlos Boudet is in private practice in West Palm Beach, Fla. Contact him at<br />
www.boudetdds.com or 561-968-6022.<br />
Figure 10: Cemented BruxZir crown<br />
After removing the healing abutment, I placed the Inclusive<br />
Scanning Abutment and finger-tightened it over the implant<br />
(Fig 3). If tissue shaping is required for proper emergence<br />
of the final abutment because you did not use a custom<br />
healing abutment, you can do it at this time. This will give<br />
the laboratory a good idea of the desired emergence profile.<br />
The downside is that you will need good hemostasis, as any<br />
bleeding will interfere with the impression.<br />
References<br />
1. Zweig A. Improving impressions: go digital! Dent Today. 2009 Nov;28(11):100, 102,<br />
104.<br />
2. Patel N. Integrating three-dimensional digital technologies for comprehensive<br />
implant dentistry. J Am Dent Assoc. 2010 Jun;141 Suppl 2:20S-24S.<br />
3. Mörmann WH. The evolution of the CEREC system. J Am Dent Assoc. 2006 Sep;<br />
137 Suppl:7S-13S.<br />
4. Boudet CA. CEREC Connect: a welcomed upgrade for CEREC users. Chairside.<br />
Spring 2011;V6I2:38-44.<br />
5. Fuster-Torres MA, et al. CAD/CAM dental systems in implant dentistry: update.<br />
Med Oral Patol Oral Cir Bucal. 2009 Mar 1;14(3):E141-5.<br />
6. Garg AK. Cadent iTero’s digital system for dental impressions: the end of trays and<br />
putty? Dent Implantol Update. 2008 Jan;19(1):1-4.<br />
7. Personal communication between laboratory owner and author.<br />
8. Lee SJ, Gallucci GO. Digital vs. conventional implant impressions: efficiency outcomes.<br />
Clin Oral Implants Res. 2012 Feb 22. Article first published online.<br />
Next, we powdered the scanning abutment and adjacent<br />
teeth, and took the scans for the digital impression (Fig. 4).<br />
I then took the buccal bite and correlated (stitched) the<br />
models (Fig. 5), before replacing the scanning abutment<br />
with the healing abutment.<br />
48 www.chairsidemagazine.com