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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

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