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Contemporary aesthetic restorative procedure
This document provides an overview of esthetic restorative procedures and color matching. It discusses color perception and factors that influence tooth color like hue, value and chroma. Principles of smile design are covered such as visible tooth length, symmetry and proportions. Treatment options for improving esthetics are summarized, including bleaching, microabrasion, bonding and veneers. Key factors in esthetic treatments like color matching and limitations of restorative materials are also mentioned.
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Contemporary aesthetic restorative procedure
- 1. Contemporary Esthetic Restorative Procedure RestorativeProcedure II 5th Year College Of Dentistry University Of Dammam
- 2. Color • Three ColorDimensions Hue Chroma Value • Color Mixing Primary Hues Secondary Hues Complementary Hues
- 3. Color And Teeth •Human Teeth are NEVER a single color • Cervical Third: the Perceived color close to pure dentin. • Middle Third: (Body color) mainly the Dentin Hue, influenced by the thick layer of overlying Enamel. • Incisal Third: minimal influence of dentin, mainly the influence of Enamel.
- 4. Color Perception & ShadeSelection • Optical Properties • Spectral Reflection • Metamerism www.logodesignworks.com/blog/ images/eye-perce
- 5. Sensitivity of the Observer Eye www.logodesignworks.com/blog/images/eye-perce •Perception threshold & light sensitivity • Color Fatigue • Color Blindness
- 6. Viewing Conditions • Lightning:Standard day light, Artificial light (color corrected CRI > 90) • Surroundings: walls, floors, sealing ..etc • Time: Initial diagnosis appointment and again at the beginning of preparation appointment • Patient Position • Tooth condition
- 9. Esthetic/Cosmetic Dentistry • Esthetic: relatingto sense perception, judgement and taste concerning beauty .. a pleasing appearance or effect” Webster 3rd International Dictionary • Cosmetics: The ART of beatifying or altering the appearance. Webster 3rd International Dictionary
- 10. Factors Altering Esthetics • Exogenous •Endogenous • Defects of Enamel and Dentin • • http://www.sciencephoto.com/images/showEnlarged.html/ P486115-Tooth_enamel,_SEM-SPL.jpg?id=804860115 Environmental Hereditary • Other factors http://www.sciencephoto.com/images/showFullWatermarked.html/ P486153-Tooth_dentine,_SEM-SPL.jpg?id=804860153
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- 13. Visible Incisal Length Incisal edgeposition with lips at rest. Incisal edge position framed between upper and lower lip. Maxillary and mandibular incisal edge relationship. http://c1-preview.prosites.com/10426/wy/images/Embrasures.gifweb.gif
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- 17. Interdental Contact Area InterdentalContact Point Incisal Embrasure
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- 19. Central Incisor • Thelength to width proportion • • (10:8) The rule of 1/16” (tooth & face) Size, gender and shape http://www.confidentsmile.com/smile-design/
- 20. Symmetry & Proportionality • • • The GoldenProportion Visual Width Repeated Ratio (more more practical) http://c1-preview.prosites.com/10426/wy/images/Embrasures.gifweb.gif http://c1-preview.prosites.com/10426/wy/images/Tooth%20proportionweb.gif
- 21. Tooth Character • • • • • • Surface Texture Surface Contour SurfaceLuster Line Angle Position Embrasure Form Incisal Edge Form http://www.confidentsmile.com/smile-design/
- 23. Gingiva & Supporting Tissue http://www.scielo.br/img/revistas/dpjo/v15n1/en_14f04.jpg • • • • • Lip Line LipProfile Upper & Lower lip interrelationship Commissure Width & Location Size of Buccal Corridor
- 24. Age Characteristics of Teeth • Chroma& Value • Surface Texture
- 25. Causes of Esthetic Defects •Caries. • Occlusal Disharmony. • Loss of tooth substance. • Discoloration. • Minor abnormality in size and shape of teeth. • Missing teeth.
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- 27. Objectives of Restoring Esthetics •Restore Affected teeth into normal form, size, position, alignment, color, surface and optical characteristics and occlusion. • Restore normal periodontium
- 28. Limitation in Restoring Esthetic •Color matching. • Gingival and periodontal health. • Occlusion • Available restorative materials
- 29. Correctable Defects • • • • • • Incisal Irregularities Length/ Widthdiscrepancies Shape discrepancies Enamel Defects Diastema Slight Malposition http://boca-raton-cosmetic-dentist.co.cc/wp-content/uploads/2009/01/porcelain_veneers.jpg
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- 31. Treatment Modalities • • • • • • • Visual Mock-ups Bleaching Micro-abrasion Reshaping Direct ResinBonding Indirect Veneers Crowns
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- 64. Esthetic Cavity Design • Should reflectthe concept of esthetics. • Modified Designs.
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- 67. Tooth Bleaching • • As earlyas 1890’s (Pyrozone) • • • • 1940’s (Hydrogen Peroxide + ether) 1910 in-office bleach (Hydrogen Peroxide) 1950’s (Pyrozone + Na-perborate) 1960’s (10% Carbamide Peroxide) 1989 (Profession Acceptance)
- 68. Types & Natureof Staining • Poor oral hygiene, chromatogenic food & drinks. • • • • Aging. Tetracyclic Staining. Fluorosis. Some systemic conditions.
- 69. Factors Altering Esthetics • Exogenous •Endogenous • Defects of Enamel and Dentin • • http://www.sciencephoto.com/images/showEnlarged.html/ P486115-Tooth_enamel,_SEM-SPL.jpg?id=804860115 Environmental Hereditary • Other factors http://www.sciencephoto.com/images/showFullWatermarked.html/ P486153-Tooth_dentine,_SEM-SPL.jpg?id=804860153
- 70. Bleaching Agent Mode ofAction
- 71. Indication for Bleaching • • • Ptdiscomfort Further Treatment Presence of other restorations
- 72. Contraindication for Bleaching • Superficial orextrinsic Staining • Discolored carious lesion or restoration • In-home & pregnant women or lactating • Root of teeth • In-office & teeth with large pulp, exposed dentin, cracks, caries ... • Broxers needs to alter the wearing time of inhome trays • Bonding has to be delayed for 7 to 10 days
- 73. • Treatment Planning •Shade Selection and Record Collection • Patient Education
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- 75. Non-Vital Bleaching • • Sodium Perborate 10%Carbamide Peroxide http://www.scritube.com/files/limba/engleza/health/170_poze/image059.jpg • Hydrogen Peroxide • • Thermocatalytic Walking bleach
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- 77. Vital Bleaching • In-office •At home http://img.diytrade.com/cdimg/556049/8452357/0/1271005827.jpg
- 78. Factors Affecting Bleaching Process • • • • • • • SurfaceCleanliness Concentration of Peroxide Temperature (in-office) pH Time Sealed environment Additives
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- 80. Dentist-Supervised AtHome Technique •Over Night • Day Time
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- 83. Safety Factors • Tooth& Pulpal Problems
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- 87. Enamel Micro-abrasion • Indications: • • Extrinsic stains • White,hypo-calcified spots Cream, yellow & brown flourosis
- 88. Mechanism of Action • • • PhysicalRemoval Etching Oxidation
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- 90. Risks • Excessive Removal of Enamel • • • • Compounds(36-62 Micron) Normal Prophylaxis (4-8 Micron) Chemical Burns Post-operative Sensitivity
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