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Semelhante a Colour Theory for Dental Shade MatchingTITLE Understanding Tooth Shade with Colour Science TITLE Practical Techniques for Shade Matching CrownsTITLE Overcoming Shade Matching Subjectivity
Semelhante a Colour Theory for Dental Shade MatchingTITLE Understanding Tooth Shade with Colour Science TITLE Practical Techniques for Shade Matching CrownsTITLE Overcoming Shade Matching Subjectivity (20)
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Colour Theory for Dental Shade MatchingTITLE Understanding Tooth Shade with Colour Science TITLE Practical Techniques for Shade Matching CrownsTITLE Overcoming Shade Matching Subjectivity
- 1. Mark Oborn RDT LBIDST Of all the things I’ve lost in life , the things I miss the most are my marbles
- 2. Shade Matching Subjectivity to Objectivity
- 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
- 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?
- 16. Did your picture look anything like either of these?
- 17. Now picture the colour Orange?
- 18. Which shade of orange did you picture?
- 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?
- 21. OSRAM TABLE OSRAM 965 is one of the best light bulbs to help overcome this
- 23. There are many depths of colour on a tooth
- 24. Dentine Colour Dentine Effects Enamel Colours Surface Effects
- 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
- 30. This is how I do it
- 35. Images from digital systems
- 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!
- 38. Use Contrastors for photos General Medical
- 39. With black contrasters the incisal architecture is easier to see
- 41. Photos to take Full arch in ICP
- 43. Photos to take Single tooth, Teeth apart
- 44. Notice how different the tooth looks when open and closed, take both images
- 45. Photos to take Lingual
- 46. This shows us how to map the incisal colours
- 47. Photos to take With shade tab
- 48. This gives the lab an idea of gradation of colour against a standard
- 49. Modify the image properties. Increase contrast and decrease brightness
- 50. The various effects then stand out which makes mapping easier
- 51. SBO Dental Laboratory 01707 663293 www.sbodentallaboratory.co.uk Precision meets Art Thank you for your attention