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The DT Post Evolution

DT Posts – The Innovative Post System

DT Post quartz fibre posts look back on over 10 years of success characterised by
innovations, with thousands of satisfied users and many millions of restorations.
 
DT LIGHT® posts have made their mark in dental
practice with their excellent translucency and a long
period of clinical testing.		   DT LIGHT®SL offers all the advantages of DT LIGHT®
posts – and in addition it provides the innovative Safety
Lock® coating for greater convenience and safety.
     
Proven Features of DT Posts
Root-friendly: elasticity modulus similar to dentine
Aesthetic: high translucency
Minimally invasive: Double Taper design
Clinical control: radiopaque
Durable and resistant
 
Safety Lock® Coating
One step less during treatment
Reliable bonding with the composite cement
Long-term bonding adhesion
Compatible with all adhesive systems
     
 
 
Tried, Tested and Recommended  

More Than 90 Studies Prove DT Posts Are First Class Scientists from all over the world have tested DT Posts. Not only does the material quality speak for itself, with its pre-tensioned, monodirectional fibres, homogeneous and inclusion-free structure as well as high fibre density – clinical studies have also proven its long-term durability.
     
Awards Over Many Years

 

DT LIGHT® quartz fibre posts have been receiving awards for many years: thanks to their high product quality, strength, post design, high radiopacity and aesthetics.

 DT ILLUSION™XRO® has also been awarded Editors’ Choice with 5 out of 5 possible points by The Dental Advisor: 89% of the panellists rated the root post better than or equal to other fibre posts.
 
DT ILLUSION™XRO®SL is a unique development among root posts. It offers even more safety for
patients and practitioners:		    
     
Thermally Reactive Colour Pigments in
Epoxy Resin Matrix
Invisible in the tooth – but clearly visible during treatment
Easy post size identification at all times, without any risk of confusion
Both during placement and retreatment: the colour post stands out from dentine and is even easy to recognise without dental loupes.
 
New Patented Quartz Fibre – XRO®
eXtra RadiOpaque:
outstanding radiopacity
Improved flexural strength for highest fracture resistance and durability
     
Plus all the proven features of DT Posts!
 
The Quartz Fibre Post with Colour-On-Demand

Invisible in the tooth –
but clearly visible during treatment:

Due to thermally reactive pigments, DT ILLUSION™XRO®SL quartz fibre posts are easily distinguishable from dentine when you need it – coloured at room temperature (22°C) making it conveniently visible for placement and retreatment, but translucent at body temperature (37°C) for an aesthetically perfect tooth.

    

 
Easier Placement and Retreatment
Thanks to Clear Distinction from Dentine

Colour pigments enable posts to be distinguished
from dentine when required – even without magnification.
 
Placement
 
Visible during placement due to cooling   Translucent at body
temperature for perfect
aesthetics
     
Source: Dr. Cheleux, University of Toulouse, France
 
Easy Identification of Post Size
Simple selection of matching colour-coded drill

No risk of mixing up sizes since it is possible
to check the post colour at any time

No removal of ring markings

     
Retreatment
 
At body temperature,
posts are barely visible		   After cooling, posts
and post sizes are
clearly visible
     
Source: Prof. M. Ferrari, University of Siena, Italy

Cool air or water causes the translucent quartz fibre post to appear coloured. Thus it is possible to distinguish the post from dentine, and as a result, the post is clearly visible at any time during the drilling out procedure.

  
Perfect Aesthetics at All Times

At 29°C, the transition point is far below body temperature. Integrated in the tooth, cold ambient temperatures do not trigger any transition back to colour; the post remains permanently translucent
in the tooth – perfect aesthetics are guaranteed
at all times.
 
Transmitted light image of a fibre post restored
tooth (left) with perfect aesthetics
Source: Prof. D. Edelhoff, University of Munich, Germany
 
New XRO® Fibre for Strongest Radiopacity
A patented quartz fibre with a highly improved radiopacity (360% - 730% Al) enables clear radiographical identification of a DT ILLUSION™XRO®SL quartz fibre post. The root post can be clearly identified from dentine and root filling on a radiograph.
 
Improved control after placement
Optimal post detection
 

Highly radiopaque DT ILLUSION™XRO®SL
root posts

Source: internal data from VDW
 
Outstanding Radiopacity Amongst Competitors

Source: RTD laboratory test, St. Egrève, France
 
 

„When removing fibre posts, tooth substance is often unnecessarily
removed or a via falsa may be created as it is difficult to see posts in
the composite core. Their temperature-reactive colour coding makes
DT ILLUSION™XRO®SL quartz fibre posts visible, thus making it easy
to differentiate them from dentine. Posts can be drilled out more precisely,
preventing unnecessary weakening of the root and reducing
the risk of perforation. The improved radiograph contrast facilitates
endodontic control and planning.“

Dr. C. Zirkel, Specialist in Endodontics, Cologne, Germany
 
DT: Double Taper Design
Minimally Invasive Adaptation to the Root Canal
Double Taper means dentine-protective post space preparation, where in the endodontically treated tooth as much dentine as possible is preserved and the best possible stability is provided. A good adaptation to the canal shape provided by modern preparation systems is of prime importance.
 
 
Typical root canal
progression after
preparation with
modern systems		 Unnecessary dentine
removal (root
weakening) with a singletapered post
Source: Prof. Boudrias / Prof. Sakkal, developers of the
Double Taper shape, University of Montreal, Canada

 






 
Cylindrical: retention and strength for the build-up

Greater taper: optimal adaptation to root canals prepared with NiTi instruments

Smaller taper: substance preservation

 
Elasticity Modulus Similar to Dentine
Virtually No Root Fractures
Metal and ceramic posts are very stiff in comparison with dentine. Their low elasticity means that chewing stresses are directly applied to the tooth root which increases the risk of root fractures.
DT Post quartz fibre posts, however, possess an elasticity modulus similar to that of dentine. The stresses are more easily absorbed and are better distributed across the root.
 
Stress Distribution
   

Healthy tooth

    
 
Reconstruction with
low elasticity modulus		   Reconstruction with
high elasticity modulus
 
Source: Dr. B. Duret, Grenoble, France

Elasticity Modulus

Source: RTD, St. Egrève, France
 
 
SEM of the post to cement interface.
Safety Lock® coating as a binding
partner for the composite cement
Source: Prof. D. Edelhoff, University of Munich, Germany
 
* DT ILLUSION™XRO®SL quartz fibre posts can be bonded with all of the customary dual or self-curing adhesive procedures and all dual or self-curing composite cements on a BisGMA or UDMA basis.
 
Safety Lock® Coating

Shorter Procedure and Long-Term Adhesion
The Safety Lock® coating replaces the manual pretreatment of the post with primer or silane and enables secure, long-term bonding with the composite cement.

Shorter and Easier Procedure
No need to prime or silanise the post.

Reliable Bonding
Industrial coating means less risk of failures in treatment. A patented protective layer ensures that the coating is not deactivated.

Long-Term Adhesion
The Safety Lock® coating ensures an optimal bonding between post and composite cement – also long-term.

Suitable for all Adhesive Systems
and Composite Cements*

Source: Prof. R. Marx, RWTH Aachen, Germany
 
High Flexural Strength
Durable and Resistant

The success of a long-term restoration depends on its performance: over a period of many years it must be able to withstand masticatory loads and also occasional extreme stresses.

Long-Term Resilient
Chewing simulation in millions of cycles
DT Posts withstand 10 million and more stress cycles. This corresponds to a calculated life time of approx. 20 years.
 
Sources:
* Test with 2 million cycles: Grandini et al. Fatigue resistance and structural characteristics of fiber posts: three-point bending test and SEM evaluation. Dental Materials 2005, 21: 75-82.
**  Test with 10 million cycles under equivalent conditions as (*): Laboratory RTD; St. Egrève, France

 
 
Extremely Durable

Thanks to the newly developed XRO® fibre, there is a higher flexural strength of 1,800 MPa (DT LIGHT® and DT LIGHT®SL 1,600 MPa) and thus even lower risk of breakage for DT ILLUSION™XRO®SL.

In-Vivo Studies Confirm Positive
Long-Term Results
„Various long-term clinical studies show outstanding results for DT Post quartz fibre posts: during a 6-year observation period, 91% of cases showed successful outcomes. Less than 1% of the posts (out of more than
1,000 DT Posts) fractured. In those cases new posts could be placed. No root fractures were observed.”

Prof. M. Ferrari, University of Siena, Italy
 
Clinical Case: Prof. M. Ferrari
   
  Tooth 13 after opening
 
 

Apply composite cement
     
 

Remove gutta-percha and
prepare post space
 
  Insert post
     
  Check seat of post
 
 

Light-cure and then prepare core build-up
     
 

Etch canal and coronal dentine
 
  Result at cold ambient
temperature (< 29˚C)
     
  Apply adhesive
 
 

Result at body
temperature (37˚C)
     

Source: Prof. M. Ferrari, University of Siena, Italy
 
Product Range

 
   
BasicKit
Basic equipment with illustrated instructions
12 posts: 3 per size: #0 / #1 / #2 / #3
4 DT Finishing Drills: 1 per size: #0 (Universal Drill) / #1 / #2 / #3
  V04 0931 000 500 V04 1930 000 000 V04 1940 000 000
Refill Blister
6 posts of one size in blister: individually packed for convenience
#0 V04 0931 000 000 V04 1931 000 000 V04 1941 000 000
#1 V04 0931 000 001 V04 1931 000 001 V04 1941 000 001
#2 V04 0931 000 002 V04 1931 000 002 V04 1941 000 002
#3 V04 0931 000 003 V04 1931 000 003 V04 1941 000 003
         
DT Finishing Drills
Drills for removing the root canal filling (Universal Drill #0)
and for post fitting in the root canal, 2 pieces
#0 V04 0935 000    
#1 V04 0935 001    
#2 V04 0935 002    
#3 V04 0935 003    
       
DT Post Removal Kit
Removal Kit for the fast, safe removal of DT Posts with no unnecessary dentine removal
V04 0938 001
 
Composibrush
Endo brush for applying bonding material to the root canal, 50 pieces
V04 0936 000
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VDW GmbH · P.O. Box 830954 · D-81709 Munich, Germany
Tel.: +49 (0) 89 62 73 40 · Fax: +49 (0) 89 62 73 41 90 · e-Mail: info@vdw-dental.com