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Figure 2a: Clinical image of an Inclusive Custom Abutment with delivery jig<br />

Figure 2b: Clinical image of a custom abutment, freshly seated, demonstrating<br />

proper soft tissue support<br />

Custom Abutments or<br />

Stock Abutments<br />

The clinical benefits of patient-specific<br />

implant abutments have been well<br />

documented in the dental literature. A<br />

prefabricated “stock” abutment lacks<br />

the flexibility in form to address the<br />

unique challenges, individual complexities,<br />

and esthetic demands of a given<br />

case. In the majority of implant cases,<br />

the patient is best served by an abutment<br />

specifically tailored to the natural<br />

emergence profile of the tooth being<br />

replaced, the morphology of adjacent<br />

and opposing dentition, the presence<br />

of defects, and proper support of the<br />

eventual restoration, among other factors.<br />

2 To provide optimal function and<br />

esthetics, stock abutments must often<br />

be modified by the lab to establish<br />

suitable height, margins, and path of<br />

insertion, which can vary, depending<br />

on the location and angulation of implant<br />

placement. Not only does this<br />

modification process provide a less<br />

than ideal emergence profile, but the<br />

cost is often as much or more than the<br />

cost of a custom abutment.<br />

through proper support and management<br />

of the soft tissue with a properly<br />

placed margin, which facilitates<br />

cement removal during delivery of the<br />

final restoration (Fig. 3).<br />

Digital Custom Abutments or<br />

UCLA Abutments<br />

Since its introduction in 1987, the<br />

universal clearance-limited abutment<br />

(UCLA) has enabled technicians to<br />

create the wax-up of a custom abutment<br />

by hand, allowing them to design<br />

abutments that adapt to conditions<br />

of restricted occlusal and interproximal<br />

clearance. While suitable in most<br />

clinical situations, the UCLA process<br />

can be tedious, time-consuming, and<br />

less precise 3 for both the clinician and<br />

laboratory. Given the high cost of noble<br />

metals, and the intensive laboratory<br />

procedures required to fabricate<br />

the final solution, an overwhelming<br />

number of clinicians are switching<br />

from UCLA abutments to digital custom<br />

abutments (Fig. 4).<br />

Digital Inclusive Custom<br />

Abutments or Other Digital<br />

Custom Abutments<br />

With a greater number of clinicians<br />

choosing the esthetics, function, and<br />

<strong>Glidewell</strong> provides an acrylic jig with<br />

each Inclusive Custom Abutment to<br />

help ensure swift, accurate seating,<br />

thereby minimizing chairtime and patient<br />

discomfort (Figs. 2a, 2b). Once<br />

delivered, these patient-specific abutments<br />

promote peri-implant health<br />

Figure 3: Illustration depicting the subgingival location of the cement junction found on a typical stock abutment,<br />

in comparison to the tissue-level cement junction found on an Inclusive Custom Abutment<br />

68<br />

– www.inclusivemagazine.com –

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