CLINICAL RESEARCH
apparent dentin mamelons
actual dentin mamelons
Fig 15
Enamel is responsible for creating an optical illusion of the apparent versus the actual position
with regards to the visualization of the underlying incisal dentin.
bules when light is reflected internally from the deeper strata.
graphic techniques aimed at increasing the accuracy and objectivity of dental shade evaluation and laboratory com- munication. In order to minimize the user-dependent error in future clinic- al practice, it is necessary to develop standardized, reproducible imaging modalities and objective image analysis methods (Figs 16 and 17).
Diversification of photographic illumination techniques Intact dental specimens provide the ul- timate reference for the perpetual de- votion of time and attention to acquire the needed knowledge with regards to visual interpretation. 58,59 Over the last decade, there has been profound interest in alternative photo-
Reflective Illumination
Direct reflective illumination utilizing a macro twin flash, via manual standardi- zation of power output, remains the pho-
346 THE INTERNATIONAL JOURNAL OF ESTHETIC DENTISTRY VOLUME 9 • NUMBER 3 • AUTUMN 2014
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