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5 Cards in this Set
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- Back
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5 Noncarious tooth defects & causes
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Abrasion - Improper brushing/toothpick
Erosion - Chemicomechanical action, acids Abfraction - Wear & fracture in cervical area Attrition - mechanical wear or incisal and occlusal surfaces Fracture - Loss of tooth structure from trauma |
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Caries Progression
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White spot - Incipient, loss of translucency due to demineralization but no change in surface texture
-Surface texture becomes rough and softer -Cavitated lesion = Clinically active lesion Softened enamel can be chipped away with explorer |
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Origin
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Primary - Pit & fissure, Smooth surface caries, root surface caries
Secondary (recurrent)- Between tooth and restoration on side or under restoration |
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Location of Carries
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Pit and fissure - Base to base
Smooth surface - Point to base Root surface - Less defined margins, progresses laterally and rapidly |
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Extent
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Incipient - Reversible white spots
Cavitated - Non reversible |
