first · 2017. 6. 26. · one with 1 part clear glaze. chroma level 1 is standard shading chroma...

Smart Phone or Digital SLR Camera

Mobile Digital Shade Analysis System

There is nothing like the Life Essence Digital Shade analysis available

today – So I had the “Practice Area” developed to enable you to get

familiar with our digital shade analysis process before you use the system

to do an actual shade analysis’

Before you use the Life Essence digital shade analysis system –Please

take advantage of the ‘Practice Area” -this training area does not

consume any digital credits from your free trial or member file. The Life

Essence practice area enables you to practice selecting different areas

in each of the 4 selection zones on the selected tooth .

Each practice session enables you to visually compare 3 separate uses

to show you what cursor placement does to the + or – percentage

reading of the tooth to shade guide or the tooth to library .

When you close the practice session all data is erased and the practice

may be used fresh again -

Life Essence digital shade analysis is fully integrated with shade selection

tooth to shade guide comparative analysis.

also if you do not have a shade guide in the digital (tooth) picture to be

analyzed, we added a feature that compares our vita classic or 3D

shade library.

©

TRY OUR PRACTICE SESSION

FIRST

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Practice Tutorial

1 Bright 2 Good depth 3 DARK

Check your pictures for depth &

Illumination.

Never use a flash #1 is too bright ,you can not see into

the tooth

#2 Is a good working image & you

can see into the tooth#3 Is too dark and give you a low

value analysis

Learning to recognize the bright & dark areas in a tooth picture is important for you to get

the best results from the shade analysis.

4 5 6 7

#4- NEVER place the cursor on a reflection or right

on the edge of a

reflection.

#5- Good images allow you to see the mamelon effects if

they are evident.

This image shows

Opal mamelons and will register a plus %

body shade

#6- Check the incisal tip for extra

translucency.

You can skip the

incisal tip if no incisal

translucency is

showing.

#7- It is never a good idea to try pulling a

registration from

the interproximal.

Most often they are shows and will give

a you a Lower

value registry

I recommend you play with the cursor placement in the practice

feature. You be able to see results of various places on the tooth

surface and what happens too the digital Rx registry you will be working from

Your Life Essence frit shading palette is laid out to accommodate the Digital Shade

Rx analysis & designed to enable easy shading

adjustments.

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Shade communication is one of the last frontiers in restorative dentistry to go digital. To achieve high caliber shade matching ( which I define as difficult to discern) normally requires exceptional expertise and direct contact with the ceramist and the patient.After years of custom shading and realizing I was at my best using a S.W.A.G. technique (Scientific Wild A$$ Guess) - even with my best communication with really great Doctors and staff , I was guessing . The guessing was not so much registering shade but communication And remembering translucency. I had no way to identify the translucency - translucency controls the value . The value drives the vitality. As digital photography developed we were able to easily have pictures to work on in Photoshop to analyze color differences . Then technology advanced and we have smart phones to work with. This will sound very odd - We started with Cannon and Nikon SLR cameras. Some cameras were as low as 4 megapixels. The smart phones give us a point & shoot capability. You may well question the veracity of using a smart phone over a SLR - we have examined both sources and found the smart phone gives us consistently good working pictures, without all the settings f stops and gadgetry . I received a email picture from one client in Dallas Texas when I could not make it to the office. I commented to the assistant - "wow this is a great picture for shade analysis, what camera did you buy? She answered -"we did not buy one, that is with my iPhone." I bought one and the rest is history - first thing to recognize is we are not reading color matching per-se. I developed an algorithm to give me the percentage difference between a shade sample and a patients tooth, and give us a + or - percentage of difference, both for hue (base shade) and translucency(Value)in 4 zones on a tooth -cervical/ middle third /incisal / incisal tip.Once I had the method, I had a digital shade analysis app put together. We were still using SLR cameras for our digital pictures and using he camera cards to transfer the images to our lap tops or desk computers. It was restrictive to have to email images and then transfer then to the web site -Ultimately we realized we needed to add more features and make the shade app mobile access.

Concepts in Shade Communication

Jim Emmons CDT, FNBC

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We enable pre blended shade adjustment system preblended to the Vita

classic shade & Vita 3D shade guides.

The shading frits enable you to adjust shade illumination in line with the digital

shade analysis percentages shown on the digital shade Rx.

The average chroma level adjustment of the digital shade analysis is from 2 to 4+ %.

The level 2 reservoirs enable 2 % shade increases. To mix a level 2 color you use 1 part level

one with 1 part clear glaze.

Chroma Level 1 is standard shading Chroma level ( color intensity) that we are used to

working with, Plus chroma level 1 enables the highest chroma range of the digital shade

analysis system. Chroma Level 2 is the average color intensity adjustment we find using the

Digital Shade analysis

For standard shading ( no digital Rx ) Our chroma level 3 is in line with standard shading

techniques , you apply the shade & brush to desired appearance and fire.

The Life Essence frit shading is focused on color in illumination versus reflected color.

Managing color in illumination enables optimized vitality and depth in restorations.

Custom shading without digital % references is nearly impossible.

Having a source of hue % adjustment, makes replicating restorations significantly easier.

The translucency % levels enable the ceramist to easily provide optimized ceramic

restorations consistently.

The Life Essence frit palette shading is laid out A,B, C,

D, 4M & 5M to enable matching the complete Vita

shade system.

Conventional shading systems do not provide 3

chroma levels of shade adjustment.

In addition to the standard chroma level 3. Chroma

Level 3 enables a 3%+ chroma level increase , as well

as being the go to shade adjustment chroma level

for straight shading in day to day ceramics.

Using the Digital Shade Analysis

The Spectrafire digital Shade analysis is very simple to use (it takes approx. 3

minutes)

You can place our logo on the desk top of your phone / tablet or other

computer.

Once you set your membership in the Spectrafire.com web site. Click on the

logo and you are instantly in the site and ready to proceed with the shade

analysis.

You Log in and first enter the patient name then the Doctor name – The

individual Doctor name is a separate file within you personal membership.

You can search for cases by Doctor name or patient name. Each analysis Is

archived in your member file.

The next step is to select whether you want to use the shade guide in the

picture option or use the library feature when you do not have a shade

sample in the picture. The next automatic screen ask you to import the

picture select the vita classic or vita 3Dand upload, you are ask to place

your cursor and crop the picture. And save the thumb nail

The next steps with the shade guide in picture is to alternately select 4 zones

on the patients tooth and shade guide as follows cervical of patients

cervical of the shade sample / middle of patient tooth, middle of shade

sample/ Incisal 1/3 patients tooth , incisal of shade sample & last incisal tip

of patients tooth , then incisal tip of shade sample . NOTE: any one of these

zones may simply be skipped.

If you select the Library option – once the image is loaded and cropped ,

you select one place in each zone (cervical /middle /incisal third and

incisal tip. To complete the process click submit. In each option you can

make editable notes.

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QUICK START

Mobile Digital Shade Communication:

with Smart Phone access

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Please take the time to run two or three digital pictures to make

sure your smart phone or camera is taking good working

pictures.

Recommendations

Before You Jump Into The System

1 2 3

Picture #1 over

exposed (too light )

The Translucency

registry will be too

bright (high value )

Picture #2 is a good mid

range illumination . The

translucency registry will

be the most accurate

Picture #3 is too dark ion .

The translucency will

register excessively dark –

low value.

Your smart phones have brightness darkness settings –

I recommend that test your phone first to optimize your camera or

phone. If you want us to check your test pictures - email your test

pictures to [email protected] or 877-989-2248

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mailto:[email protected]

Login to www.Spectrafire.com , this is our home page.

Across the bottom row of buttons you can look at who we are.

In about us, look at our catalog /cart store / check your lighting volume / log

on in as a member / sign up as a member and contact us to use the free trial

or with any questions.

We have 6 tutorials across the bottom of the page for you. Plus, a short video on digital picture taking for shade analysis

This Is Our Home Page

To use the Shade analysis software

Log in with member button This next screen is the member log in screen.Just follow the screen prompts

Choose file picture to start using the program and select upload

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http://www.spectrafire.com/

Follow screen prompts

Selected file shows here &

click upload

Use the cursor to form a cropping zone on patients tooth area you want to

do analysis. The cropped analysis area will be on the right . When you have

the cropping zone in place , save to thumbnail to proceed.

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Sample

Cursor

Placement

꙳

2nd Selection by placing the cursor on shade guide tooth image

cervical & click next

Start Selection Process with placing the cursor on patient tooth image

cervical & click next

꙳

Sample Cursor

Placement

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4th Selection by placing the cursor on shade guide tooth image

middle 3rd & click next

꙳

3rd Selection by placing the cursor on patient tooth image

middle 3rd & click next

Sample Cursor

Placement

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Sample Cursor

Placement

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6th Selection by placing the cursor on shade guide tooth image

Incisal 3rd & click next

5th Selection by placing the cursor on patient tooth image

Incisal 3rd & click next

꙳


Incisal tip & click next


Incisal tip& click next

After you click next – the program will take you to your home screen to scroll down to see the Digital Rx

Then you can print or email your shade analysis your analysis will be archived by Doctor name

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Restoration Check Upload a picture of the restoration and use the cursor to crop the restoration picture, you will be ask to select cervical , middle third, incisal & incisal tip in succession on the

restoration image only.The shade analysis system compares your restoration with the original patient tooth

analysis

After you load the thumb nail of the restoration, you will follow the screen prompts for the cervical , the middle third, incisal third and incisal tip – just place the cursor on

the zone and click ,moving directly to thee next zone . The Spectrafire analysis system will automatically compare your restoration to the

patients tooth used in the beginning of your analysis

꙳

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Using The Restoration Check Feature

Step 2

Step 3

Step 4

After you click on NEXT in the final selection your digital Rx will instantly display.You will able able to print or email directly from the Digital analysis screen.

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꙳

꙳

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This your archived digital Rx with the restoration recorded to retrieve

any of your digital Rx records , open your membership and search by

client (Doctor name) these are private files within your membership.

Restoration Check

The restoration Check enables you to know how close you are to the patients

digitized analysis tooth.

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LightingThis section deals with the transition color in light makes asit travels.

3 Basic Elements In Selecting Lighting

Color Rendering Index, Lumens, Kelvin

All light sources lose integrity and actually deteriorate with time. It follows the progression of a slight addition of green into the emitted light to a lot of green added into the light emission.

The following scenario can occur with a single set of fluorescent bulbs. The shade is returned because you have too much orange in the A-3 (example). Basic Colors in Light & Illumination. A slight addition ( less than 5%) of green into the light emission causes the ceramic to show more orange, as the bulbs deteriorate the orange fades to yellow. Now you will get the same shade back & the complaint will be the shade too pale. Which is just the opposite of the problem you had a few months before.

It is not wise to go above 5500 kelvin, 2500 lumen. Above 5500 k has different color content than true daylight, 5000 k (9AM) or 5500k (noon) & above 2500 lumen starts to glare with excessive brightness.

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Color Systems-

Most of us have really been in the dark about color in teeth & how we can

identify & replicate what we see with dental porcelain or resin / glass.

Isaac Newton discovered that sun light could be broken down into multiple

colors (a rainbow) & that light is the source of color.

This composite light is known as the visible light spectrum. The amount of air & residual water in a dental restoration play key roles in our ability to consistently

produce porcelain restorations that have natural depth & light transmission.

Basics of The Visible Light Range-

We know that visible light is radiant energy that is made up of wave lengths that

are from 760nm (red low energy) to 380nm (violet high energy). 100% saturation

of the component spectral colors equals white / invisible light.

The order of color is always the same red, orange, yellow, green, blue ,violet.

The best way to remember this is to remember the cowboys name - R,O,Y-G-

B,V - phonetically Roy G Biv. Color in light always fades from red to violet.

Red is the largest visible light wave & the slowest moving or lowest energy while

violet has the highest energy & is the shortest light wave.

Photons-

For most of our discussion of color we can think of light (photons ) as a stream of

minute elusive particles which cause a pulsating electrical disturbance. These

varying disturbances allow us to see the different frequencies we call "color".

All photon frequencies are slowed down when they travel, whether in vacuum,

air, glass, or teeth. And those Photons of different energy levels are slowed

down to different extents. Red diminishes faster than yellow, green diminishes

faster than violet. This uneven loss of spectral colors causes color changes in natural teeth to be very hard to mimic.

One very important thing to remember is "when a photon loses all of it's energy,

it ceases to exist". There is nothing to see & there is no visible residue or evidence it ever existed. In a natural or artificial tooth this causes a gray or dark

area.

When the red, green & blue spectral colors reach an individual & equal level of

saturation balance in the light wave they are gray. Interproximal grayness is caused by light being diffused to the point of nearly equal components or

nearly no energy while the light is reflected off the coping or pontic at the same

time.

This contrast of light energy makes the interproximal area appear even more

gray & colorless.

Warm Color Visibility FadesWith The

Addition Of Green To The Light

#1 Orange lens Illumination in Clear Acrylic represents shade that is seen.

#2 Deteriorated fluorescent tubes (increased green in the emitted light ) cause the orange

lens to lose warm shade being seen.

Matched operatory & laboratory

lighting enables the Doctor &

laboratory to see the same shading

Spectral Effects On Lighting From Aging

If the light tubes are not matched, the office & the lab will not see the same shade

effects. It depends whose lights are the greenest, but one side will see light shades &

the other will see darker shades

If the laboratory has more green emitted in their lighting, the shade looks good (

more chroma) in the lab. But, you will see more orange than is really there. And then

you will send crowns that are too light.

10% green added to light from aged bulbs reduces the dark orange to light orange

In your lab you see Fig.2

You send Fig.3, And you get it back for “add

color”.

The Doctorask for Fig.1

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As Lighting degrades (more Green Emitted) Warm Shading Spectral Is Diminished

As light travels it loses energy (warm colors & lowers value)

=

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Life Essence © Illumination Reference Guide

5000k 85 CRI 2200 LumensCool White

Anything below 90 CRI will Metameres (color) green

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Plant Lighting / Fluorescent

http://r.search.yahoo.com/_ylt=AwrBT8HiZHVUOvAAxXJXNyoA;_ylu=X3oDMTEzdTF0cTg4BHNlYwNzcgRwb3MDMgRjb2xvA2JmMQR2dGlkA1ZJUDA3N18x/RV=2/RE=1417008483/RO=10/RU=http:/en.wikipedia.org/wiki/Metamerism_(color)/RK=0/RS=D3zzssgLY2bq5ZCHBn6Q0DRZGd4-

Life Essence © Illumination Reference Guide

Incandescent ( becoming Obsolete)

Introduction To Color In Living Tissue(Teeth)

(As the green increases the red diminishes)

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The Order of Natural Spectral Color

This natural order of color in light never varies. The red (magenta) is the longest wave in the visible spectrum. Red is also the slowest / weakest of the spectrum, it loses visual presence first . The loss of red illumination causes shades to appear light (low chroma).

Red/Green/Blue are primary colors in illumination. (additive color system)

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What makes up this thing called color in light & the language used to talk about it.

Terms of Basic Physics of Color in LightPhotons: light is made up of millions of a magnetic disturbance causing the particles to oscillate. These particles are called photons & the different oscillations causing us to see different colors. Photons owe their existence to their energy . As they lose energy they cease to exist. When there is no magnetic disturbance (energy) there is no light & no color. A light switch could be called a photon emission controller, when it is on there is energy to the bulbs to make light energy & when it is off (no energy in the bulb) there is no light. Due to the reflective nature of our restorative materials in the

past we have only utilized 1/2 of the system of living color (reflective)

This brief explanation of the physics of light will give you the necessary reference points to follow what occurs when color in light changes. Fig 1 shows the primary color in light & the result of all color being present in light which is white light. Fig.2 shows the Subtractive system Fig.3 which is the presence of all color being black.

© Jim Emmons CDT,FNBC 2017

Fig 1 Fig 2

Fig.3 is the color bar showing the prismatic separation of color in light. The number markings across the bottom indicate the nanometer wave lengths of the individual spectral colors. I have used these numbers to identify the colors on the prismatic palette.

Perceptions in Color

Fig 1 & 2 The red /blue arrows appear to be darker chroma that arrows

surrounded by the white trim – they are the same chroma. In comparing

the black trimmed arrows , they appear more intense.

Fig 3 The red & blue arrows that touch appear to have a fuzzy area where

they touch.

Fig 4 The stars in #4 are exactly the same size.

Fig 5 The yellow arrows are the same exact size & chroma.

Fig 6 The red letters in both hearts are identical, the blue heart letters

appear fuzzy .

Our eyes do not focus on red & blue at the same time

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first · 2017. 6. 26. · one with 1 part clear glaze. chroma level 1 is standard shading chroma...

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