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Aesthetic crown workflows

Dental professionals have a wide variety of options when selecting a material to fabricate a single-unit crown. The final choice and recommendation to the patient can depend on various patient and tooth factors, such as tooth location, aesthetics, masticatory factors, and the patient’s expectations and resources.

Let’s have a look at the sequential process of crown placement, emphasising some important reminders for each step that are essential for a smooth procedure.

Which material to choose?

Initial Lisi Press and Initial LiSi Block

Crown
Small 3-unit anterior bridge

Initial LiSi Block

Fully crystallized lithium disilicate block that delivers optimal physical properties without firing.

  • Fully crystallized lithium disilicate, which saves time, as no firing is required.
  • Durable aesthetics & accurate margins for a seamless fit
  • Natural opalescence for genuine beauty
  • Provides long-lasting restorations in the posterior area thanks to high physical properties & HDM technology
  • Possibility to paint & micro-layer with Initial IQ ONE SQIN
  • MPa= 210 < x < 250

Initial LiSi Press

Pressable ceramics combining strength & exceptional aesthetics.

  • Exceptional aesthetics thanks to HDM technology for lasting beauty
  • Excellent polishability (also intraorally)
  • Excellent wear resistance and beautiful opalescence
  • Time saving with virtually no reaction layer
  • Resistant to marginal chipping & excellent marginal integrity
  • MPa= 580

Initial Zirconia Disk, UHT (Ultra-High Translucency)

Crown
Small 3-unit anterior bridge
3-unit posterior bridge

Initial Zirconia Disk

The perfect framework for your most demanding cases

  • High masticatory load
  • Subgingival margins
  • Choice of translucency and strength level (depending on yttria content)
  • Entirely geared to the Initial ceramics line
  • MPa UHT= 600

Initial Zirconia Disk, HT (High Translucency)

Crown
Small 3-unit anterior bridge
3-unit posterior bridge
Multi-unit bridge

Initial Zirconia Disk

The perfect framework for your most demanding cases

  • High masticatory load
  • Subgingival margins
  • Choice of translucency and strength level (depending on yttria content)
  • Entirely geared to the Initial ceramics line
  • MPa= 1200
  • 3Y or 5Y? Tetragonal or cubic? Concise insights into the different types of zirconia.
  • How much strength is required for my ceramic restoration? And how this this determined?

How to prepare your restoration?

Adapt the thickness to the material

Removing just the right amount of tissue ensures that you prepare in the least invasive manner while respecting the minimum thickness of the framework.

Adapt the margins of the material

While the round shoulder and deep chamfer are horizontal geometries that have been proven for many years, vertipreps without finishing lines are increasing in popularity.  Vertical preparation techniques such as the biologically oriented preparation technique (BOPT) are accepted to be used with 5Y-zirconia (Initial Zirconia Disk HT).

Minimum framework dimension

Initial LiSi Block & Press
Initial Zirconia Disk UHT

Initial Zirconia Disk HT

Recommended margins

Deep chamfer

Round shoulder

Accepted for
Initial Zirconia Disk HT

Feather edge

  • What about vertiprep and BOPT? Emerging restoration approaches
      • Prepare correctly: do’s and don’ts
      • Preparation made perfect

How to finish?

Experience the convenience of GC Initial’s intuitive workflows, with logical steps from the framework to the finishing.

Did you know?

  • Initial LiSi Block does not require firing to reach full strength. It can also simply be polished if characterisation is not required!
  • You can customise white zirconia with Zirconia Coloring Liquids (in just a few minutes!)

Immerse…

… or paint

Full contour

monolithic painting with Initial IQ Lustre Pastes ONE
(zirconia & lithium disilicate)

Micro-cutback

micro-layering with Initial IQ ONE SQIN
(zirconia & lithium disilicate)

Cutback

layering with Initial Zr-FS (zirconia)
or Initial LiSi (lithium disilicate)

  • Customising white zirconia with Initial Zirconia Coloring Liquids

How to lute?

Pretreatment of Initial LiSi Block & Initial LiSi Press

1. Etch with hydrofluoric acid (5-9%) for 60 sec. in case of feldspatic & leucite-reinforced ceramics and for 20 sec. in case of lithium disilicate.

2. Rinse and dry

3. Apply G-Multi PRIMER*

*When using Fuji PLUS, FujiCEM 2 SL or FujiCEM Evolve, the use of a primer is not mandatory

4. Dry with an air syringe

Bond with G-CEM ONE

A universal self-adhesive resin cement

Universal, versatile option for any indications
Can be used with with
G-Premio BOND or G-CEM ONE AEP if retention/resistance shape are insufficient
Higher aesthetic need:
4 aesthetic shades, colour stable over time
Excellent dark-cure performance

Preparation is not retentive

High aesthetic needed

Isolation possible

Extra adhesion needed

Pretreatment of zirconia

1. If not done by the lab, sandblast (AI2O3 < 50µm)

2. Rinse and dry

3. Apply G-Multi PRIMER*

*When using Fuji PLUS, FujiCEM 2 SL or FujCEM Evolve, the use of a primer is not mandatory

4. Dry with an air syringe

Cement with FujiCEM Evolve

Ideal for zirconia thanks to high bond strength
Low chance of post-up sensitivity
Possibility to handmix or automix for better amount control
Preferred when the caries risk is high

Retentive preparation

No specific aesthetic requirements to the cement

Isolation not possible

Patients with special needs

  • How should I clean and pretreat my restoration?
  • Before luting, why and how should I clean and disinfect the teeth?
    • Tips for durable cementation

Articles, videos & others

Articles

Interviews

“A clean surface is the first prerequisite: an interview on the cementation of partial restorations”
by Marcio Vivan Cardoso

“Maximal aesthetics within a micro-layer! A new, efficient concept for monolithic workpieces”
by Patric Freudenthal

“Master your day-to-day communication with the lab, as simple as possible”
by Niklas Landin

“Simple adhesive luting in everyday practice – ONE for all”
by José Ignacio Zorzin

“Enjoy the simple things: cementation with self-adhesive resin cement”
by Christian Lampson

Cases

“Ceramics and digital solutions from a single source: where manual and automated techniques go hand in hand”
by Ralf Dahl

Colour and brightness: Proper brightness of a zirconia-ceramic restoration using Initial Zr-FS ceramic”
by Luigi Russo

“The color gradient of natural teeth and their intelligent imitation”
by Stefan Roozen

“The Mini-Max principle: When profitability is combined with aesthetics”
by Andreas Pilch

What you paint is what you get: an all-ceramic upgrade”
by Leonardo Cavallo

Videos

Others

Related products

Initial LiSi Press
Lithium disilicate solutions for pressing

Initial LiSi Block
Lithium disilicate solutions for CAD/CAM

Initial IQ Lustre Pastes ONE
Three-dimensional paintable ceramics

Initial LiSi
Veneering system for lithium disilicate

G-CEM ONE
Self-adhesive resin cement system

Initial Zirconia Disks
Zirconia CAD/CAM disks for demanding cases

Initial Zirconia Coloring Liquids
Water-based coloring liquids for pre-sintered zirconia frameworks

Initial IQ ONE SQIN
Painting and microlayering system

Initial Zr-FS
Veneering system for zirconia frameworks

FujiCEM Evolve
Resin-modified glass ionomer luting cement

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