Zeramex Knowledge Base

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Zirconium dioxide, tetragonal zirconia polycrystals (TZP-A), alumina-toughened zirconia (ATZ) – what is the difference?

> Zirconia and its composites: what do abbreviations TZP, TZP-A and ATZ mean?

> What is the current state of research regarding TZP-A & ATZ?

> What mechanical and biological advantages do ATZ & TZP-A high-performance ceramics provide?

> What material are Zeramex XT implants made of?

> What is transformation toughening? Does it have clinical relevance?

> What is low temperature degradation? Does it have clinical relevance?

Zirconium dioxide, aluminium dioxide & metals

> Is zirconium dioxide (zirconia) a metal?

> What are the properties of zirconium dioxide?

> Is aluminium dioxide a metal?

> What role does aluminium dioxide play in the manufacture of dental implants?

Clinical advantages

> What is meant by biocompatibility? How biocompatible are ceramic implants?

> Can better aesthetic results be achieved with ceramic implants?

> Are ceramic implants hypoallergenic? What is meant by hypoallergenicity?

> Do ceramic implants show less bacterial colonisation?

Cleaning & sterilisation

> Do implants with healing caps need to be sterilised?

> Do abutments need to be sterilised?

> Does the Vicarbo screw need to be sterilised?

> Do the drills need to be sterilised?

> What needs to be considered during machine cleaning?

> When is ultrasonic cleaning recommended?

> What are the recommendations for automated cleaning?

> What are the recommendations for manual reprocessing?

> How should sterilisation be carried out?

Indications and contraindications

> What are the indications for the Zeramex XT implant system?

> Are there any contraindications for using the Zeramex XT implant system?

> What are the indications for Zeramex XT SB 3.5 mm?

> Are there any contraindications for patients?

Surgical phase

> How deep may a Zeramex XT implant be placed?

> What is the effective drilling depth?

> What is the drilling protocol for SB 3.5 mm?

> What is the drilling protocol for RB 4.2 mm?

> What is the drilling protocol for WB 5.5 mm?

> What should be done if adjacent superstructures such as natural teeth prevent the angled head from being used?

> How do I correctly remove the implant with the appropriate healing cap from the packaging?

> What torque should be used to insert and tighten the implant?

> What must be considered when positioning the implant if an angled abutment is to be used?

> What healing methods are available and which healing method is recommended?

> What healing time must be observed for Zeramex implants?

Prosthetic phase

> How do I create a digital impression?

> Can standard abutments be ground down or shortened?

> How do I tighten the Vicarbo screw correctly? (Video tutorial)

Zeramex XT Screws: Vicarbo® Screw, Try-In Screw, Provisional Screw

> When should the Vicarbo Screw be used?

> What is the maximum torque that can be applied to tighten the Vicarbo Screw?

> Does the Vicarbo Screw need to be sterilised?

> What material is the Vicarbo Screw made of? Why is it black?

> When is the Try-In-Screw used?

> What torque can be used to tighten the Try-In-Screw?

> When is the Provisional Screw used?

> What torque can be used to tighten the Provisional Screw?

Zeramex® guarantee

> Do Zeramex products come with a guarantee?

> What is the guarantee for abutments, prosthetic restorations and the Vicarbo® Screw?

> How do I report a case under guarantee?

Last updated on 26 June 2025