Perma-tex and Perma-dor®
Superior Post Systems
The design: Protects the tooth substance and provides a safe and proven solution
 
Protects the tooth substance
There is no doubt that conical posts have the advantage of following the anatomical course of the root. This is particularly important in the apical area of the tooth since - compared with cylindrical root posts - less dentin has to be removed and thus perforation or fracture of the root is avoided.
 
Sicher
Perma-tex and Perma-dor® conical posts have been used for 30 years in hundreds of thousands of cases with very good results. Both systems guarantee a safe and lasting solution for your patients.
Perma-tex
conical shape		 Produkt R
cylindrical shape
The system: Quick process
 
Reduced number of instruments:
(only 2 preparation instruments)
Easy and optimal choice:
 3 sizes S, M, L for posts and instruments
   
 

1st step:
Pilot drill

2nd step: Calibration drill

 Alternative: Trimming drill for all Perma-dor® sizes
Perma-dor® - Passive precious metal post for the indirect method
 
Precious metal composition protects the tooth
 
The use of Perma-dor® root posts allows substance-preserving preparation of the root canal since, due to direct casting of precious metal, even in the case of oval or funnel-shaped canals optimum adaptation to root canal is ensured.
 
Perma-dor® - Sandblasted surface with aluminum oxide: A safe and long-lasting solution
 
Optimum surface hardness (micro-hardness)
Improved adhesion of the cement
Minimized formation of cracks
The areas of the root canal marked in red are also included in the impression and subsequently cast on.
Perma-dor post  
In the direct method (e.g. titanium posts) you would have to select a considerably larger post diameter (yellow) in order to obtain the contact to the canal wall that is required for retention.
Titanium post
Perma-dor® Cooling effect (no shrinkage cavities)
 
No shrinkage cavities (hollow spaces): Optimum security against fracture.
 
   
The micro-section of a cast root post has numerous small hollow spaces, so-called shrinkage cavities (fig.1). The largest number of shrinkage cavities can be clearly seen in the transitional area between the post and the core build-up; therefore a fracture of the root post will most likely occur in this area. The different cooling times of the thin post element compared to the massive core build up are responsible for the formation of shrinkage cavities (so-called suction/vacuum cavities).
 
Fig. 1
If the direct-cast Perma-dor® root post is used, the post acts as a cooling device through which the heat can escape more quickly after the supra-structure is cast on. The cold-formed Perma-dor® root post has a homogeneous, inclusion-free, metallographic structure which withstands maximum physical and chemical stress (fig. 2). With the Perma-dor® root post no shrinkage cavities will occur in this area, which has the highest risk of fracture.
 
 
Fig. 2
5 easy steps
 
1. Pilot drilling 2. Calibration of the drilling 3. Impression taking 4. Temporary restoration with
Perma-dor®
>proviso<		 5. Permanent restoration with
Perma-dor®
 
Perma-dor® >twin< und Perma-dor® >biodent< for specific indications
 
Perma-dor® >twin< (palladium-free) for patients allergic to palladium
Perma-dor® >biodent< (flat head) fort thin teeth and front teeth
 
 Components in % Au Pt Pd Ag Cu Zn Ir
 Perma-dor® /Perma-dor® >biodent< 60 24.9       15 0.1
 Perma-dor® >proviso<   4.9 35 52.5 7.1 0.4 0.1
 Perma-dor® >twin< 40 60          
Perma-tex - active titanium post for the direct method
 
Double thread saves time and reduces stress points
 
Time saving:
The double self-cutting thread allows you to fix the post firmly with only two turns.
   
Reduces stress points:
Since the double thread has been integrated into the middle third of the Perma-tex >active< and >progress< stress is avoided in the apical area, which has particularly thin walls.
 
4 cement discharge grooves:
Optimum retention length
 
The 4 cement discharge grooves allow easy retrieval of excess cement and thus guarantee optimum retention length of the post.
 
Perma-tex >aktive< Perma-tex >progress<
 
 
4 easy steps
 
1. Pilot drilling 2. Calibration and
preparation of the plateau		 3. Insertion 4. Completed crown
 
Comprehensive indication range
 
Perma-tex >active< for molar teeth
Perma-tex >progress< for premolars and front teeth
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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