Aesthetic Consideration and Shade Selection for Ceramic Restorations
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1 Aesthetic Consideration and Shade Selection for Ceramic Restorations Mohammed Alfarsi BDS, MDSc(Pros), PhD
2 Overview Aesthetic Consideration and Shade Selection for Ceramic Restorations
3 Overview Aesthetic Consideration and Shade Selection for Ceramic Restorations Aesthetic consideration Shade - Anatomy of a smile - Proportion - Balance/symmetry - Incisal embrasure - Incisal angulation - Description of color - Shade systems
4 Introduction Aesthetic Consideration
5 Introduction Aesthetic Consideration
6 Aesthetic consideration Anatomy of a Smile
7 Aesthetic consideration Anatomy of a Smile
8 Aesthetic consideration Anatomy of a Smile Upper lip position Gummy smile
9 Aesthetic consideration Anatomy of a Smile Upper lip position Gummy smile Smile arc The curvature of the maxillary teeth incisal edge relative to the lower lip
10 Aesthetic consideration Anatomy of a Smile Upper lip position Gummy smile Smile arc The curvature of the maxillary teeth incisal edge relative to the lower lip Buccal corridor The space between the cheeks and teeth width of smile : width of dentition
11 Aesthetic consideration Anatomy of a Smile Upper lip position Gummy smile Smile arc The curvature of the maxillary teeth incisal edge relative to the lower lip Buccal corridor The space between the cheeks and teeth width of smile : width of dentition Teeth shown Young More maxillary teeth Old More mandibular teeth
12 Aesthetic consideration Proportion
13 Aesthetic consideration Proportion Golden proportion Height/width ration 75-78%
14 Aesthetic consideration Balance
15 Aesthetic consideration Balance Symmetry Right = left sides of the mouth
16 Aesthetic consideration Balance Symmetry Right = left sides of the mouth Midline Facial midline = incisal midline
17 Aesthetic consideration Incisal Embrasure Form
18 Aesthetic consideration Incisal Embrasure Form Embrasure V-shaped flare surrounding the proximal contact areas of a tooth Young More embrasure
19 Aesthetic consideration Incisor Angulation
20 Aesthetic consideration Incisor Angulation Vertical inclination Mesial OK
21 Description of Color
22 Description of Color
23 Description of Color Munsell (Clinic) Hue, Chroma & Value
24 Description of Color Munsell (Clinic) Hue, Chroma & Value CIELAB (Research) a*, b* & L*
25 Munsell Color System
26 Munsell Color System Hue The color itself. E.g: red, yellow, blue, etc.
27 Munsell Color System Hue The color itself. E.g: red, yellow, blue, etc. Chroma The intensity of the hue. I.e. the color saturation.
28 Munsell Color System Hue The color itself. E.g: red, yellow, blue, etc. Chroma The intensity of the hue. I.e. the color saturation. Value The lightness or darkness of the color. I.e. the brightness.
29 Munsell Color System Hue The color itself. E.g: red, yellow, blue, etc. Chroma The intensity of the hue. I.e. the color saturation. Value The lightness or darkness of the color. I.e. the brightness.
30 CIELAB Color System Hue The color itself. E.g: red, yellow, blue, etc. Chroma The intensity of the hue. I.e. the color saturation. Value The lightness or darkness of the color. I.e. the brightness.
31 CIELAB Color System Hue The color itself. E.g: red, yellow, blue, etc. Chroma The intensity of the hue. I.e. the color saturation. Value The lightness or darkness of the color. I.e. the brightness.
32 CIELAB Color System Hue a* & b* Chromatic character Chroma Value The lightness or darkness of the color. I.e. the brightness.
33 CIELAB Color System Hue a* & b* Chromatic character Chroma Value L* Achromatic character
34 CIELAB Color System Hue a* & b* Chromatic character Chroma Value L* Achromatic character 1 X color difference (ΔE) = can be seen by 50% of people with normal color vision
35 Shade Selection Methods
36 Shade Selection Methods Manual Shade Selection Instrumental Shade Selection
37 Manual Shade Selection
38 Manual Shade Selection Vitapan (Munsell system)
39 Manual Shade Selection Vitapan (Munsell system) 1- Hue: A, B, C & D (Start with highest chroma)
40 Manual Shade Selection Vitapan (Munsell system) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4
41 Manual Shade Selection Vitapan (Munsell system) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values
42 Manual Shade Selection Vitapan (Munsell system) Vitapan 3D-Master (Munsell + CIELAB) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values
43 Manual Shade Selection 5 Value grades (+1 for bleached teeth) 4 X ΔE Vitapan (Munsell system) Vitapan 3D-Master (Munsell + CIELAB) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values
44 Manual Shade Selection 3 Chroma grades 2 X ΔE 5 Value grades (+1 for bleached teeth) 4 X ΔE Vitapan (Munsell system) Vitapan 3D-Master (Munsell + CIELAB) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values
45 Manual Shade Selection 3 Chroma grades 2 X ΔE 5 Value grades (+1 for bleached teeth) 4 X ΔE 3 Hue grades 2 X ΔE Vitapan (Munsell system) Vitapan 3D-Master (Munsell + CIELAB) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values
46 Manual Shade Selection 3 Chroma grades 2 X ΔE 5 Value grades (+1 for bleached teeth) 4 X ΔE 3 Hue grades 2 X ΔE Vitapan (Munsell system) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values Vitapan 3D-Master (Munsell + CIELAB) 1- Value (0-5)
47 Manual Shade Selection 3 Chroma grades 2 X ΔE 5 Value grades (+1 for bleached teeth) 4 X ΔE 3 Hue grades 2 X ΔE Vitapan (Munsell system) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values Vitapan 3D-Master (Munsell + CIELAB) 1- Value (0-5) 2- Chroma (1-3)
48 Manual Shade Selection 3 Chroma grades 2 X ΔE 5 Value grades (+1 for bleached teeth) 4 X ΔE 3 Hue grades 2 X ΔE Vitapan (Munsell system) 1- Hue: A, B, C & D (Start with highest chroma) 2- Chroma: 1, 2, 3, 3.5 & 4 3- Value -- Another shade guide with CIELAB L* values Vitapan 3D-Master (Munsell + CIELAB) 1- Value (0-5) 2- Chroma (1-3) 3- Hue (L-M-R)
49 Instrumental Shade Selection
50 Instrumental Shade Selection Spectrophotometers Colorimeters Digital color analyzers
51 Instrumental Shade Selection Spectrophotometers Colorimeters Digital color analyzers Reliable and reproducible
52 Instrumental Shade Selection Spectrophotometers Colorimeters Digital color analyzers Reliable and reproducible Accurate??
53 Shade Taking Tips
54 Shade Taking Tips - Under daylight
55 Shade Taking Tips - Under daylight - Grey or light room walls
56 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation
57 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth
58 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth - Remove bright colors in the surrounding (like lipstick)
59 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth - Remove bright colors in the surrounding (like lipstick) - At the beginning of the visit in the first 5-7 seconds (before eye fatigue)
60 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth - Remove bright colors in the surrounding (like lipstick) - At the beginning of the visit in the first 5-7 seconds (before eye fatigue) - Look at Grey area to rest the eye
61 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth - Remove bright colors in the surrounding (like lipstick) - At the beginning of the visit in the first 5-7 seconds (before eye fatigue) - Look at Grey area to rest the eye - Patient at eye level around 25cm away
62 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth - Remove bright colors in the surrounding (like lipstick) - At the beginning of the visit in the first 5-7 seconds (before eye fatigue) - Look at Grey area to rest the eye - Patient at eye level around 25cm away - Select value by Squinting
63 Shade Taking Tips - Under daylight - Grey or light room walls - Before preparation - Clean teeth - Remove bright colors in the surrounding (like lipstick) - At the beginning of the visit in the first 5-7 seconds (before eye fatigue) - Look at Grey area to rest the eye - Patient at eye level around 25cm away - Select value by Squinting - Select hue from canine as they have highest chroma
64 The End
65 The End References
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