Methods: The color space of. Vitapan 3D-Master shade guide was measured and analyzed with CIE-1976-L* a* b. system and MINOLTA chromatic instrument (CR-321 ) under D65 standard source.

• 方法：用美能达色差计CR－321（D65光源）以 CIE－1976－L*a*b*色度值对市售Vitapan 3D－Master比色板进行色空间的测定和统计，分析其临床使用的可能性。