In pursuit of gold standard shade guide method, a comparative in-vivo study between manual and digital shade guides

The available shade guide system in dentistry includes Manual and Digital. Although there is lot of research going on better to choose dental but still are many factors including source light illuminating the tooth, characteristics tooth observer viewing which needs study further. In this study, a comparative analysis made between Digital systems. : objective record manual (subjective method) digital (Objective 500 subjects by two observers (Prosthodontist 1 {P1} Prosthodontist 2 {P2}). patients having complete set anterior teeth with sound maxillary central incisors were selected for study. selection (Vita 3D Master) 50% P1. Then P2 does same method Easy Shade Advance) records deviation values ∆E, ∆L, ∆C, ∆h from as recorded P1 using verification mode guide. Recording shades done remaining 50 % role reversal P2. kappa correlation Hue value chroma when manually documents include 0.26, 0.42, 0.13 indicating fair, moderate, slight no agreement respectively. -0.08, 0.51 0.12 agreement, moderate It advisable use technology overcome errors subjectivity. Due edge loss spectrophotometer, especially incisal cervical region, combination systems always comes handy deciding particular or map.