Mastering Shade Analysis – English

Mastering Shade Analysis

an intensive two day program searching for the excellence in the analysis and
comprehension of color in dentistry, for clinicians and technicians

24th-25th October 2020

16:00h – 20:30h (Madrid – UTC+2)

Register now

an exclusive webinar

maximum 20 participants

Albert Einstein

Look deep into nature, and then you will
understand everything better...

Limited seats

State of the art
slideshow

Questions &
Answers

Limited capacity ensures best experience and posibility to interact with the trainer directly.

Cutting edge keynote presentation with beautiful photography, computer graphics and very comprehensive information.

Live interaction with the trainer, questions and answers will be addressed during the lecture and demo time.

Bio-Emulation™philosophy

Understanding light interaction with tooth structures as well as proper histo-anatomic principles is essential for a better material and shade selection during direct restorative procedures. Tooth structures form a complex optical medium for light as it passes through enamel, dentino-enamel complex and dentin. Furthermore, this behavior changes over the years, as tissues change in morphology and composition. Comprehension of dynamic aging of tooth structures is a key for success when selecting the proper value and chromaticity for restorative materials. By using the selective enamel dissolution technique it's possible to reveal the true shape of dentin, which leads to an even better understanding of light interaction and simplification of layering techniques. The Bio-Emulation approach assess all this histo-anatomic parameters to achieve the ultimate simplification of current techniques as well as development of future technologies for restorative dentistry.

dynamic_ageing

concept

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Bio-Emulation: visual synthesis concludes that dentin and enamel suffer histo-morphological changes over the age that affect their optical properties. As a consequence they become more transparent (reducing value) and more saturated (increasing chroma).

enamel_dissolution

structural_analysis

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Dissolution of enamel in 10% Hydrochloric acid reveals true dentin volume. Enabling a better understanding of tooth morphology and it's bio-mechanical and optical implications.

3D_anatomy

observation

Selective enamel dissolution and scanning technologies allow us to render 3D anatomic bio_replicas of dentinal structure and its relation to enamel.

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polar_eyes

cross-polarized photography

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Removing specular reflections and unwanted glare improves visualisation of shade and internal structural details, leading to a better color analysis.

dynamic_light

observation

As described in Bio-Emulation: visual_synthesis, the observation with different illumination techniques such as reflected light, transmitted light, cross-polarized light and ultra-violet light allows better analysis of shade and outcomes.

BACK TO OVERVIEW

opalescence

rayleigh_scattering

The scattering of short wavelengths and transmission of longer ones by the hydroxiapatite crystallites provides the natural enamel with this unique optical feature, important to be emulated with dental materials to achieve a perfect integration with dynamic light.

BACK TO OVERVIEW

The Bio-Emulation approach as written in structural analysis and visual synthesis defined the new bases to consider for replication of natural tooth structures with composite resin. The penta_laminar concept represents the ultimate implementation of this philosophy: analysing different ageing stages to build a dynamic shade concept that adapts to nature. However, feasibility of application of this concept is compromised by its intrinsic complexity, not accesible to all clinical conditions. By analysing the key factors of natural structure’s ageing process and applying this knowledge to the material selection, it is possible to simplify techniques to make them approachable in all situations.
Achievement of aesthetic restorations that resemble natural teeth represent a great challenge for both dentists and technicians. Obtaining optimal results with the minimum number of try-in tests or repetitions necessarily implies performing a systematic and exhaustive shade analysis. Advanced photographic techniques need to be used for this task, including different kinds of illumination and precise calibration of RAW files.
Defining proper shade selection strategies for both composites and ceramics is of paramount importance for our daily work. The Bio-Emulation approach provides specific tools designed to increase dramatically the accuracy of our shade matching, including the custom_eyes shade tabs as well as the “state of the art” eLAB protocol, which changes the classic subjective approach into a new completely objective one with the maximum predictability.
Ultimately, a successful treatment will always be the outcome of a good communication with patient and perfect teamwork between dentist and technician.

Theoretical program – Day 1

Introduction to color in dentistry.
Basic color parameters: hue, chroma & value.
Opacity as value modulator.
Texture as value modulator.
Opalescence and fluorescence: myths and legends.
Bio-Emulation: a new approach to color in dentistry.
Optical properties of dental structures.
3D anatomy: enamel vs dentin.
Understanding dental tissues ageing process.
Photography as shade analysis tool: dynamic light observation.
The penta_laminar concept: a dynamic layering approach.
Practical implementation: is it possible to simplify?
Emulating nature with a limited amount of shades. Simplification criteria.
Clinical application.
The tri_laminar concept: a simplified vision for posterior restorations.

Theoretical program – Day 2

Introduction to digital photography.
The photographic equipment. Recommendations for dental photography.
Revisiting essential concepts for dental photography: shutter speed, aperture, depth of field, ISO and white balance.
Digital formats: RAW vs JPEG.
Exposure control through histogram information.
Optimising settings to maximise the information recorded: understanding photography as capture-processing binomial.
The digital workflow.
Bio-Emulation: polar_eyes, fluor_eyes, white_balance & axis.
Bio-Emulation advanced photography protocol.
eLAB®: the revolution in shade management: capture-calibrate-create.

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