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Clinical Case Report<br />
Go online for<br />
in-depth content<br />
iTero ® Digital Scanning Technology and<br />
Tooth-Supported Surgical Guides<br />
by<br />
Perry E. Jones, DDS, MAGD<br />
and Zach Dalmau, R&D Project Manager<br />
echnologies such as digital intraoral scanning, CAD software and digital treatment planning are enhancing the<br />
precision of implant therapy while producing predictable restorative outcomes. Patient anatomy can be understood<br />
with remarkable detail through the digital collection of scanning data, and cases can be virtually planned<br />
using computer software.<br />
The following case exhibits the ability of these technologies to create a highly accurate tooth-supported surgical<br />
guide in a 100 percent digital environment, without the use of conventional modeling. Furthermore, the immediate<br />
placement of provisionals demonstrates the accuracy of computer-assisted implant placement because it requires<br />
the screw-retained abutments and temporary crowns to fit in all dimensions of space, including depth, in order to<br />
be delivered properly. Relining of the provisional crowns was not necessary to compensate for fit inaccuracy, further<br />
emphasizing the precision of these convergent technologies.<br />
Ultimately, this case demonstrates how digital technology can be used to capture data and design and fabricate<br />
tooth-supported surgical guides, temporary abutments, cement-retained provisional crowns and final zirconia<br />
restorations with the highest level of accuracy.<br />
Case Description<br />
A 78-year-old male patient presented with two missing<br />
maxillary right bicuspids (Fig. 1). The patient stated that he<br />
had success with past implants on the opposite side of his<br />
upper jaw and wished to have implants placed to restore<br />
the areas of missing dentition. The patient was concerned<br />
about provisionalization for his missing bicuspids. A comprehensive<br />
assessment was completed to evaluate his<br />
condition and provide treatment options.<br />
The patient’s medical history was noncontributory. He<br />
appeared to be a good candidate for implant placement<br />
and implant restoration, especially given his success on<br />
Figure 1: Occlusal view of the patient’s two missing bicuspids (#4 and #5).<br />
– iTero Digital Scanning Technology and Tooth-Supported Surgical Guides – 55