Restorative Materials

HSZ = High Strength Zirconia

• Manufacturer: Argen HT Multi ZR+

  • Strength: 1200 MPa

  • Uses:  -Single units where stump shade needs blocked out (Shade 2X darker than restorative shade)

  • Multiple units and bridgework over 3

  • Highly esthetic for multiple unit bridgework, implant or otherwise

  • Not recommended use:  None

Plus Zirconia’s

HTZ+ = High Translucent Zirconia+

• Manufacturer: Ivoclar Emax Zircad MT Multi and Emax Prime Esthetic

  • Strength: 650-850 MPa

  • Uses:  -Single units where stump shade is not an issue (not more than one shade different than restorative shade)

  • 3-unit bridges (single pontic) joint size 7-9 mm

  • Highly esthetic, has more incisal translucency

  • Will match Emax lithium disilicate (Veneers)

  • Not recommended use:  -Bridges greater than 3 unit or small joint size

  • Implants abutment.   There will be show through unless more than 1.5 mm thick.

HSZ+ = High Strength Translucent Zirconia+

• Manufacturer: Ivoclar Emax Zircad Prime

  • Strength: 650-1100 MPa

  • Uses:  -Single units where stump shade needs blocked out (Shade 2X darker than restorative shade) 

Multiple units and bridgework over 3

• Highly esthetic for multiple unit bridgework, implant or otherwise

• Not recommended use: None

Downsides:

• Can be too translucent at incisal 1/3. This depends on how the restoration can be aligned in the puck to avoid low value from too much incisal.

• If bridge joints are too high in the puck they become weaker due to the variation of the MPa there we avoid placing joints too high up in the puck. Incisal is only 650 MPa.

• Manufacturer: Aidite Pro

  • Strength: 750-1200 Mpa

  • Uses:  -Single units where stump shade needs blocked out (Shade 2X darker than restorative shade)

  • Multiple units and bridgework over 3

  • Highly esthetic for multiple unit bridgework, implant or otherwise

  • Not recommended use:  -None

Downsides:

• Thin crowns may need pre-shaded to match pontics

• Avoid placing joints too high up in the puck.

IPS e.max CAD

I. Single-Tooth Restorations
A. Full-coverage crowns

• Anterior crowns (minimum thickness 1.0 mm)

• Posterior crowns (minimum thickness 1.0 mm)

• Minimally invasive crowns (1.0 mm)

B. Veneers

• Conventional veneers

• Ultra-thin veneers (minimum thickness 0.4 mm)

• Cosmetic smile enhancement

• Masking discolored teeth

II. Conservative Restorations
A. Inlays

• Restoration of small to moderate posterior defects

• Preservation of healthy tooth structure

B. Onlays

• Coverage of one or more cusps

• Restoration of larger defects than inlays

C. Occlusal Veneers

• Minimum thickness of 1.0 mm

• Conservative restoration of worn occlusal surfaces

D. Partial Crowns

• Alternative to full crowns when sufficient tooth structure remains

III. Bridges
A. Three-unit bridges

• Up to the second premolar as the terminal abutment

• Replacement of a single missing tooth within recommended indications

IV. Implant Restorations - Not recommended 

VI. Esthetic Restorations - Anterior esthetic restorations

• Natural translucency

• Excellent shade matching

• High polishability

B. Posterior esthetic restorations

• Srength is an issue if traditionally cemented.  Bonding greatly improves the success rate.

VII. Clinical Applications
A. Cosmetic rehabilitation

• Smile makeovers

• Veneer cases

• Color correction

VIII. Advantages Supporting Its Clinical Uses
A. Flexural strength (530 MPa after crystallization)
B. Long-term clinical survival (95.2% over up to 15 years) as long as clinical parameters are met.
C. Compatible with adhesive, self-adhesive, and conventional cementation techniques. (ivoclar.com)

Note:  IPS e.max CAD restorations can be cemented adhesively, self-adhesively or conventionally, depending on the clinical situation. For optimal results, Ivoclar offers coordinated solutions:

• Variolink® Esthetic for adhesive cementation,

• Speedcem® Plus for self-adhesive cementation and

• ZirCAD® Cem for conventional cementation.