Page 48 - DP Vol 19 No 2 HR_Neat

dEnTAl pHOTOgRApHy Why is There requireD
The evolution of visual communication currenTLy no 1. digital single lens
commerciaL coLor reflex (D-SLR)
scaLe eFFecTive in camera – RAW files
DeTecTing coLor? and ICC profiles
1. low number of color installed on Adobe
samples Lightroom
2. the color samples 2. ring flash or pair of
are made of different independent flashes
materials from the on bracket
material to be used for 3. polarizing filters
the reconstruction for flash and lens
3. the comparison between system
samples with the same 4. workflow using the
initials of the same e-LAB white balance
manufacturer show card
Fig 45: The workflow involving imaging in dentistry can consist substantial differences 5. workflow
of several steps/elements. Depending on the need, these 4. there is no comparison of the L
elements can co-participate in creating a personal workflow correspondence between * a * b * data of the
following our needs/logic. In practice we can create a basic the shade sample and the tooth with the L * a *
workflow consisting of a few simple operational steps to simply restorative material b * databases of the
show to/communicate with the patient. We can also create a porcelain mass used
professional workflow consisting of multiple operational steps, Fig 46: Any method used to
to simulate a treatment plan to the patient, such as with the diagnose color that uses color Fig 47: The above items are
Digital Smile Design shown earlier. samples is inaccurate because needed for eLab workflow
Fig 48: Type of of the above points:
photo required for
eLab workflow uses Dental photo workflow from diagnosis to color using eLab
polarizing filters with
a juxtaposition of
the white balance
card

Fig 50: Workflow of the e-Lab method; instead of using the
sample reference color, the technique exploits the workflow
in Adobe Lightroom measuring the color data according to
the CIE (International Commission on Illumination) coding of
1976 (L*a*b*) at key points on the tooth surface . The Adobe
Lightroom database contains imported ICC (International
Color Consortium) color profiles of the camera / lens / flash
that are used in the operatory and the laboratory.. The photo
Fig 49: White balance card and Adobe Lightroom must be taken in RAW format and once imported into Adobe
Lightroom, the L* value is normalized based on the white
and therapeutic information balance card that was photographed Reading the L* a* b* data
• Dental technicians who want to create a photographic portfolio of their on the tooth will guide the dental technician in choosing the
own work, and perfect dental shade diagnosis masses to be used, as porcelain masses have also been coded
• Anyone who wants to look at their profession from a new perspective according to the L* a* b*.
– to “Look Different”.

ABOUT THE AUTHOR
Dr. Federico Lorelli graduated with an Honors Dentistry Degree from the University of Messina in 1998. As a
Dentist, he focuses on endodontics (semester course with Dr. Luigi Scagnoli), cosmetic prosthodontics and
minimally invasive conservative dentistry (Master’s Degree with Dr. Mauro Fradeani and Dr. Ignazio Loi’s BOPT
annual course, on DSD with Christian Coachman and triStep with Dr. Francesca Vailati). Dr. Lorelli is a Registered
User of Nikon Photography equipment. He speaks on the topic of “photo-dentistry”.

48 Dental Practice i March-April 2023 i Vol 19 No 2