Pekkton Ivory

CMpekkton


Pekkton® Ivory from Cendres+Métaux

The top product among thermoplastic polyaryletherketones

pekktonivory

  • High performance polymer
  • Has similar characteristics to those of human bone
  • Shock absorption
  • Light-weight and natural for the patient
  • Available exclusively from Cendres+Métaux

D Cubed Digital has endorsed a new high performance polymer for implant dentistry for approved laboratories only.

Why is Pekkton® so special? It is a material for the future that is strong and light, shock absorbing, causes no allergies, has no taste and no thermal or electrical conductivity with guaranteed consistent quality – all highly desirable qualities for the sensitive nature of dental prosthetics.

With similar characteristics to human bone, Pekkton® ivory meets the demanding biochemical criteria of prosthetic solutions to increase patient comfort with a result that is closer to nature.

Pekkton® (PEKK) stands at the apex of the PAEK hierarchy – the strength lies in its chemical structure which guarantees the best mechanical properties of all PAEK.

The compressive strength of Pekkton® ivory is comparable to human dentine and cortical bone and allows better biochemical integration than typical non-precious metals.

Benefits

Shock-absorbing: excellent for your restoration on implants

  • Shock-absorbing
  • Metal-free
  • Similar properties to biological materials
  • Extremely low water absorption
  • Caries control
  • Visible in the X-ray (non-radiopaque)
  • Excellent weight-to-strength ratio
  • Can be sterilised
  • Biocompatible

For milling and pressing: easy to mill and perfect to polish

  • For an excellent fit and full control in the dental laboratory
  • Time savings and guaranteed consistent quality throughout the digital process

Aesthetic: high flexibility in the choice of veneering

  • Composites
  • Shells
  • Teeth
  • Ceramic crowns

Definitive: happy patients thanks to the natural feel in the mouth

  • Strong and light
  • No metal allergies
  • No taste
  • No thermal or electrical conductivity

PEkkton Processing FAQ

1. Can material be reused?

No. Too much effort would be involved in cleaning the material properly. Risk of impurity inclusions.

2. What composite veneering materials can I use?

Pekkton® ivory was successfully tested with various veneering composites, including SR Nexco (Ivoclar Vivadent), Gradia (GC), Ceramage (Shofu), VitaVM LC (Vita Zahnfabrik), anaxblend and anaxflow (anaxdent), S.LAY (WEGOLD Edelmetalle) and Signum (Heraeus Kulzer).

3. If a bridge doesn’t fit, can it be separated and rejoined?

No, this is not possible.

4. How good is the precision?

The precision of single crowns is between 20 μm and 50 μm so it meets the clinical requirements of 50 μm to 120 μm maximum. However, precision always depends on how accurately the dental technician works.

5. What is the difference between Pekkton® and PEEK?

In contrast to its competition, Pekkton® ivory has one additional ketone.

One additional ketone results in better mechanical properties.

Benefits for the user:

Better, easier and faster to polish

Benefits for the dentist:

Surface is more attractive and more compact, thus decreasing the risk of bacterial colonization

Less risk of chipping

The structure of the base monomers is different. The ketone / ether ratio results in different mechanical and physical properties.

The structure of the polymers is different and the process behavior leads to different results in terms of strength, rigidity, melting point and melting behavior.

6. Indication for a removable restoration: can removable prostheses (model casting) be realized with clasps? If yes, under what conditions?

For dental applications, Pekkton® ivory is the most stable high-performance polymer on the market and ideal for fixed restorations. Due to its outstanding properties, the material is also an excellent choice in cases where a removable restoration is indicated. Compared to PEEK, however, Pekkton® ivory is less flexible. Due to the current lack of clinical experience using clasp prostheses, we do not recommend this indication at this time.

7. Wax weight

You can press up to 0,6g wax with a Pekkton® ivory press ingot (1g).

Scientific knowledge

1. What is the situation regarding the formation of biofilm?

Results always depend on surface roughness. If surface quality is comparable, biofilm formation on high-performance polymers is less than on metal alloys, but slightly more than on ceramics.

2. Regarding bridges, how many units are possible?

State of development today: With Pekkton® ivory, screw-retained bridges on implants (bonded to titanium bases) with maximum two pontics in the anterior and posterior region can be fabricated. Bridges on natural teeth with maximum one pontic.

Material science

1. What is the shrinkage of Pekkton® ivory?

≈ 1.3 % (volume).

2. Why is Pekkton® ivory darker/grayer than competitor products?

The focus of development was its chemical and mechanical properties, not the color. Any change to the color, similar to that of competitor products, would be at the expense of its excellent properties. The whitish-gray color is neutral and provides the ideal basis for reproducing the desired tooth shade.

3. Can the residual material from milling blanks that are no longer suitable for use be utilized for the pressing technique?

Practice has shown that metal shavings or other impurities can build up after milling pure, implant-quality Pekkton® ivory. To maintain the high standard of quality and for reasons of traceability, we advise against the reuse of residual materials.

If you would like to learn about how to mill Pekkton® so that your lab can become Pekkton® approved, please contact one of our in house dental technicians.