Collared
and Classic MDI Now Available
 The
introduction of the Collared MDI has made the
MDI system suitable for a wider range of applications.
For example, the platform created by the
collar makes the implant easier to use in crown
and bridge applications.
However, in some cases clinicians might
prefer the shorter prosthetic portion of the Classic
MDI design.
For this reason, IMTEC is manufacturing
both the Classic MDI and the New Collared MDI
design, so clinicians will have both options when
planning treatments.
There
are three different factors for clinicians to
consider during the diagnostic phase of treatment
in order to decide which design of MDI implant to
use: the type of application, thickness of tissue
and plane of occlusion.
The
first item for the clinician to consider is the
application for which the MDI’s are being used,
securing a denture or a cementable restoration. Although the primary application of the MDI system is to secure
a denture, many clinicians worldwide have reported
high success rates using the MDI implant system
in crown and bridge cases.
The growing number of clinicians using
MDI for crown and bridge applications creates
a need for a simplified prosthetic process.
The platform created by the top of the
tapered collar on the new design allows clinicians
to use the new MDI Impression Cap (item number
S4118).
Dentists and lab technicians can use this
cap as a pick-up type impression coping and/or
a waxing sleeve.
Using this coping makes the lab process
simplified and more accurate.
If
the clinician is using the MDI system to secure
a denture, both the Classic and Collared MDI implants
can be considered.
The deciding factor will be tissue thickness. The Classic MDI is a better choice for patients with gingiva
tissue thinner than 2.5mm thick.
The additional 2.5mm tapered collar on
the Collared MDI is designed to rest in the gingiva,
and if the gingiva is less than 2.5mm thick,
the tapered collar might contribute more height
to the prosthetic portion of the implant than
the clinician desires.
However, if the patient’s gingiva is 2.5mm
thick or greater, the Collared MDI is the best
choice.
A fact to remember is that the average
denture patient has 3mm of soft tissue thickness.
The
last detail for the clinician to consider is the
patient’s plane of occlusion.
The clinician should study x-rays and bite
registers to determine the amount of space between
the crest of the patient’s ridge and occlusal
plane. Next,
the clinician should account for the additional
height of the restoration.
Once that information is considered, the
clinician will know how much space he or she has
for the prosthetic portion of the MDI implant.
"When
offered only one design, some clinicians felt
limited in the applications that the MDI system
could be used for, "said Stephen J. Hadwin,
IMTEC Executive Vice President, Director of Engineering
Operations.
"But by offering both options, IMTEC
helps doctors to more effectively treat a greater
number of patients with the cost-effective MDI
system.
However, it is very important that doctors
using MDI implants clearly understand the similarities
and differences between the Collared and Classic
MDI and how to use that knowledge during the diagnostic
phase of treatment."
Clinicians
may decide which design to use by referring to
the following information: the prosthetic portion
of the Classic MDI totals 4mm in height; the prosthetic
portion of the Collared MDI totals 6.25mm in height. IMTEC provides a transparent template with both designs represented.
The clinician can simply place the template
over an x-ray to determine which design is more
suitable and which length to use.
To order, use the shop online feature of
the website.
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