5. Colour doesn’t exist It is merely our brains interpretation of a series of effects and actions placed on a particular wavelength of light
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14. Reflection Transmission Interference Dispersion Scattering Look at the water in this scene. We know water is a colourless liquid, yet due to these effects it looks everything from black to white and all shades of blue in this photo
15. We all also have preconceptions Picture a summers day?
19. The Effects of the Gingiva Look at the dot in the centre, depending on the surrounding colour, the yellow bar at each end looks slightly different. Which is most representative?
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21. OSRAM TABLE OSRAM 965 is one of the best light bulbs to help overcome this
25. We try to match this with a crown, these are some of the colours we would use at different depths to get a C3
26. A3 Dark stain D2 White banding Feint orange flecks Translucent incisal This is how shades often are drawn by dentists and technicians alike
27. Dentine Colour Dentine Effects Enamel Colours Surface Effects But where do these colours all go? AT what depth?
28. A3 dentine White band on dentine D2 Dentine I recommend breaking the tooth down in to layers, look deep within the tooth. Then map it the DENTINE only.
29. Orange Enamel TOS10G Enamel TOS58 Opalescent blue TOS10B Surface stain neck and body white striations Next map the ENAMEL only, this avoids too much information on the prescription and gives us a 3D map of where to build the colours
37. Communication must be taken seriously. Each person can interpret the last person differently with disasterous results Patient wants Dentist says Technician hears “ I want perfect teeth” “ Make the teeth white, symmetrical, straight and in line” Oops a disasterous case!