Continued from p. 76
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94 06.2017 |
PROVIDING CHAIRSIDE CAD/CAM?
Another factor in deciding whether to do
chairside CAD/CAM is to look at available
materials. Determine what can be processed
within the time frame of a single-visit
procedure. Nano-ceramic blocks can be
polished in a matter of minutes following
milling, whereas lithium disilicate usually
has to be oven fired. Zirconia blocks with
significantly shortened sintering times have
recently become available.
Calculate your total time for a single-visit
restoration, from the time the patient is seated
to the time of dismissal. Here is an example:
• Anesthesia: 5–15 minutes
• Tooth preparation: 10–30 minutes
• Intraoral scanning: 2–15 minutes
• Restoration design: 5–30 minutes
• Milling: 8–20 minutes
• Sintering and polishing: 5–25 minutes
• Cementation: 5–20 minutes
TIPS FOR EFFICIENCY
As with any workflow, you will improve
efficiency over time. Here are ways that you
can speed up the process without sacrificing
• Buffer anesthesia to get immediate onset
(using the Anutra local anesthetic delivery
system, for example).
• Become more proficient with the scanner.
• Good prep design is key, so refine the prep
if needed after first scan.
• Maintain the mill and always use fresh
• Regularly calibrate the sintering oven.
In summary, chairside CAD/CAM continues
to become easier to incorporate into a practice’s workflow. With this information in
mind, seek out additional resources and decide if now is the time to bring this powerful
technology into your practice.
As with any
workflow, you will