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2. Organizing color in dentistry;Miller;J Am Dent Assoc,1987
3. Spectrophotometric study of the relationship between body color porcelain and applied metallic oxide pigments;Lund;J Prosthet Dent,1985
4. The science and art of dental ceramics;McLean,1979
5. Current status of shade selection and color matching;Preston;Quintessence Int,1985