ENA HRi®: natural enamel CLONED in composite - a true dental innovation.
Replace Natural Enamel with HRi® Universal Enamel:
ENA HRi® Universal Enamel is the first and only composite material to possess tha same refractive index as natural enamel.
>>THE PROBLEM:
The refraction of composite & ceramic materials
Relative refractive index of light (n)
| Air | 1.00 |
| Water | 1.33 |
| Porcelain Enamel | 1.50 |
| Composite Enamel | 1.51 |
| Glass | 1.52 |
| Natural Enamel | 1.62 |
| ENA HRi® Enamel | 1.62 |
The relative refractive indexes of commun materials measured at a temperature of 20°C and with a 589nm wavelength light* indicates the deviation of the light that crosses a translucent area**
*Measurements refractive indices from the University of Frauhofer Institute Dresden, on enamel shells natural and universal enamel HRi®.
**Vanini Mangani Klimovskaia "Conservative Restoration of Anterior Teeth" Acme 2005.
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| Traditional Restorations “Glass Effect” lowers the value of the restoration with a gray halo on the margin (dark line). |
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| Previous ENA Technique Optimal control of the enamel layers value is obtained by utilizing layers of reduced thickness compared to those of the natural enamel and 3 dentin on the margin. |
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>>THE SOLUTION:
The same refractive index as the natural enamel
| ENA HRi® Technique Invisible margins, reproducing with HRi® the same thickness of the natural enamel. |
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Restoration with Dentin and Universal Enamel HRi®
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| Before | After |
Operating Advantages:
ENA HRi® increases the quality, simplifies the technique and reduces the chair time needed with the patient
High viscosity, for a better manipulation of composite material in posterior or anterior restaurations
Simplified anatomic restorations: the application of HRi® is the same thickness as the natural enamel it replaces
Simplified technique: use fewer shades in simple restorations
New syringe:
- Completely cylindrical: extrusion of composite without stress
- New design: no material waste
- Long cap: no contact with composite
- Ergonomic design: comfortable to use
HRi® is ideal for dentists wishing to achieve the best esthethic results possible while using a simple application technique. It is also excellent for highly esthetic indirect restorations created by the dentist or the laboratory.
Technological Advantages:
A better polish is possible due to the compact and resistant surface
Ideal physical data for every type of direct or indirect restoration:
| - Vickers hardness | 700 MPa | |
| - Modulous of elasticity | 14,500 MPa | |
| - Flexural strength | 170 MPa | |
| - Compressive strength | 450 MPa |
Opalescent effect blue and amber created from HRi® Enamel (transparency 30%): Opalescent shades OA and OBN are only necessary when their effect is very visible
Invisible margins: no special margin preparation techniques, no “glass effect” lowering the value of the restoration
New dentin with fluorescence and opacity calibrated to natural dentin
Ultra-light dentin: UD0 and UD0,5 for bleached teeth.
Universal Enamel HRi® UE2 (medium value)
Different thicknesses of ENA HRi® change in shade in the same manner as Natural Enamel would in the same thickness.
Available also enamel:
UE1 low value (amber)
UE3 high value (for teeth more white or bleached)
Nanotechnology (REM)
| Composition Filling (80% in weight) • Nano zirconium oxide treatment surface with high refractive index (12% in weight) • New type of filling glass with high refractive index (68% in weight) |
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This project (HA-Project-Nr: I30/07-01) has received special funding from the state of Hessen, co-financed by funds of the European Union (European Social Fund - ESF) for scientific innovation and advancement. Patent Pending. | |
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Developed in Italy by gruppo Micerium based on the ideas, research and principles of Dr. Lorenzo Vanini. |
Dentin shades of ENA HRi®
| UD0 | = Bleach 0 |
| UD0.5 | = Bleach 0.5 |
| UD1 | = A1 |
| UD2 | = A2 |
| UD3 | = A3 |
| UD3.5 | = A3.5 |
| UD4 | = A4 |
| UD5 | = to what an A5 chroma would be |
| UD6 | = to what an A6 chroma would be |
Universal enamel shades of ENA HRi®
| UE1 | = Low value |
| UE2 | = Medium value |
| UE3 | = High value |
Intensive enamel shades of ENA HRi®
| IW | = White |
| IWS | = White spot |
| IM | = Milky |
Incisal characterization shades of ENA HRi®
| OA | = Opalescent enamel amber |
| OBN | = Opalescent enamel blue natural |
ENA HRi® kits:
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ENA HRi® refills:
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