ENA HRi® offers unparalleled esthetics for anterior composite restorations. It features materials that have been designed specifically for the Vanini Stratification technique. Dr. Vanini is a leader and innovator in dental esthetics, and continues to teach his technique, along with many of his colleagues, all around the globe.
With ENA HRi®, you can obtain predictable, highly esthetic composite restorations with invisible margins, while providing patients with years of functional smiles.
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Like NATURE does it!
ENA HRi® nano-hybrid composite produces incredibly natural looking composite restorations. ENA HRi® enamel and dentine shades feature a list of unique properties that allow clinicians to match a natural tooth's optical properties to produce incredibly life-like restorations with invisible margins.
ENA HRi® was developed in Italy by Micerium S.p.A. based on the ideas, research and principles of Dr. Lorenzo Vanini.
Just like NATURE... HRi enamel shades act like human enamel
The HRi system contains only 3 achromatic enamel shades, and these are related to the patient's age group. Young enamel is very bright [high value = UE3]. As patients approach middle age, this value decreases [medium value = UE2]. The process continues as patients reach their senior years [low value = UE1].
UE1
UE2
UE3
Low value enamel
Medium value enamel
High value enamel
Older patients
Middle aged patients
Younger patients
A thicker HRi enamel increases the opalescent effect
HRi enamel shades allow clinicians to obtain invisible margins, without compensatios (increasing bevels and increasing the thickness of dentin composite). This is obtained through the exclusive patented refraction index of HRi enamel shades, with is identical to human enamel:
The ENA HRi difference!
The key to ENA HRi esthetics is an exclusive patented enamel composite material. ENA HRi enamel composite refracts light like human enamel. This development creates invisible margins without the need to compensate by increasing bevels and increasing the thickness of dentin composite.
ENA HRi is the only composite material that has the same refractive index as natural enamel.
Composite
Refractive Index
NATURAL ENAMEL
1.6200
ENA HRi (Micerium)
1.6200
Clearfill Majesty (Kuraray)
1.5320
Filtek Supreme (3M)
1.5270
Point 4 (Kerr)
1.5230
Esthet-X (Dentsply)
1.5210
Venus (Kulzer)
1.5210
Tetric Ceram (Ivoclar)
1.5195
Kalore (GC)
1.5132
Gradia Direct (GC)
1.4910
Herculite XRV (Kerr)
1.4830
Renamel Nano (Cosmedent)
1.4745
Just like NATURE... HRi dentin shades act like human dentin
The HRi system dentin shades make up the dentin mass that transmit their hue and chroma through the enamel mass. The shades are highly fluorescent and are designed to work with the HRi enamel shades for optimal results.
HRi has a fluorescent dentin
Just like NATURE... HRi additional shades complete the characterization
HRi offers additional shades to reproduce the characterization of an individual’s nature dentition.
These shades include:
Intensive
Intensive Milky, Intensive White Spot
Opalescent
Opalescent Amber, Opalescent Blue
Characterization
White, Blue, Brown, Brown2 Dark, Orange, Yellow
Patented by Dr. Lorenzo Vanini
Why traditional techniques don't work
If you are frustrated with spending precious time to produce a high level esthetic composite restoration, only to be disappointed in the result, it's not your fault. With traditional layering techniques, it's a hit-or-miss process.
Popular enamel composites produce a graying effect as they are applied in thicker layers, because their refraction index is not tuned to human enamel. The only way they achieve results is through a complicated and unpredictable layering technique. Even if successful under certain lighting conditions, these restorations are subject to metameric failure.
Traditional restorations leave visible margins
HRi Technique - Invisible margins
Invisible margins, reproducing with HRi the same thickness of the natural enamel. *Measurements refractive indices from the University of Fraunhofer Institute Dresden, on enamel shells natural and universal enamel HRi.
Physical properties
ENA HRi® is truly a universal nano-hybrid composite offering not only great esthetics but exhibits superior physical properties in 3 out of 5 important categories.
Product name
Vickers hardness (MPa)
Flexural strength (MPa)
Young modulus (MPa)
Compressive strength (MPa)
Tensile strength (MPa)
ENA HRi (Micerium)
>700
170
14500
450
45
Premise (Kerr)
520
117
8824
405
40
Herculite (Kerr)
600
144
8450
368
45
Simile (Pentron)
660
150
13770
423
41
Cerem X (Dentsply)
536
121
10556
347
32
Filtek Supreme (3M)
823
160
13300
407
51
Evo Ceram (Vivadent)
515
120
8720
385
n/a
Abrasion resistance
Rel. wear factor [ 200 000 cycles ]
HRi shows superior resistance to wear – it is designed for both simple and complex direct and indirect restorations.
Step by Step Videos
Direct restoration on vital incisor video (6:29 min.)
The benefits of using HRi composite video (6:55 min.)
Vanini Stratification Technique
“No Bubbles” Formulation
