Post on 19-Feb-2021
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.
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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 info@Spectrafire.com or 877-989-2248
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mailto:info@Spectrafire.com
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
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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
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Sample Cursor
Placement
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4th Selection by placing the cursor on shade guide tooth image
middle 3rd & click next
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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
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7th Selection by placing the cursor on patient tooth image
Incisal tip & click next
8th Selection by placing the cursor on patient tooth image
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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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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©2014 Jim Emmons CDT, FNBC
Life Essence © Ilumination Reference Guide
5000k LED
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5000k 90 CRI 2200 Lumens
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.
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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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