Coltene ParaPost, Instructions For Use Manual

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Para Post
®
X System
Instructions For Use
5
ParaPostXP, ParaPost Plus, ParaPost
One-Office-Visit Technique
Intended Use: Metal posts are intended to be cemented into
the root canal of a tooth to stabilize and support a restoration.
Caution: Federal law restricts this device to sale by or on
the order of a dentist.
Note: Posts are single use devices and should never be salvaged
for re-use. Structural integrity of the post could be compromised
including microscopic damage which could lead to post fracture.
For illustrations see pages 100 - 102
Note that titanium posts have virtually the same radiopacity as
composite and gutta–percha. Careful scrutiny of the radiograph
will allow for the differentiation of post from gutta percha and
composite.
We urge the use of Hygenic
®
Rubber Dam with this
procedure.
1. After endodontic therapy has been completed, prepare tooth
for restoration as if pulp were intact. The preparation should
include at least 1.5 mm of sound tooth structure all around
the circumference of the preparation, apical to the core,
for desired ferrule effect
(Fig. 01) .* If that amount of tooth
structure is not available, it should be created by periodontal
crown lengthening and/or orthodontic extrusion.*
2. Use a radiograph to determine the appropriate diameter and
depth of post space preparation. Keep in mind that sufficient
root wall thickness must be maintained (1 mm minimum)*
to prevent perforation or weakening of root walls, and at
least 4-5 mm of guttapercha must be left intact to protect
the apical seal.
3. Remove gutta-percha to preplanned depth with a Gates-Glid-
den drill, Peeso reamer and/or hot instrument. Radiographic
verification is recommended. If the canal has been obturated
with a silver cone, remove it and reseal with Hygenic Gut-
ta-Percha before preparing the post space.
4. To begin paralleling the post space, select the ParaPost
Drill diameter which corresponds to the last Gates-Glidden
drill used in Step 3
(Fig. 01) . (See “Approximate Diameter
Comparisons” chart, Fig. A ). To help maintain the preplanned
depth of the preparation, ParaPost Drills have been pre-
marked to identify depths of 7, 9 and 11 mm from the apical
end of the drill.
ParaPost Drills can be used either manually with the Universal
Hand Driver or with a slow-speed contraangle (750 - 1,000
RPM) . When a contra-angle is used, the drill must be kept
in continuous clockwise rotation until it has been completely
removed from the tooth. This will minimize the risk of the drill
seizing in the post space. Remove all weakened or unsupport-
ed tooth structure. Remove any tooth debris from canal by
irrigating post space with water spray.