OPER 8120 Study Guide - Midterm Guide: Nail Biting, Gingival Margin, Bruxism
12 Apr 2020
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Decalcification: a lesion causes increased scattering of light, giving the "white" appearance. Disrupts mineralization resulting in porous enamel (high enamel proteins retention) Contra lateral tooth (same development and eruptive timelines) Hypocalcification: trauma, fever, malnutrition, or hypocalcemia during teeth formation. Hypoplasia: developmental enamel defect caused by genetic disorder, malnutrition, Creamy yellow to dark reddish orange smoking, drug abuse, maternal illness etc. Tetracycline penetrates the dentin and stains dark brown. *loss of cusp or flattened incisor tip* *glazed, smooth and round edged surfaces, particularly on anterior linguals* *abfraction-tooth flexure from occlusal compressive forces and tensile stresses* Microfractures of ha crystals of enamel and dentin. Age (attrition, abrasion, and abfraction less among youth) Diet and life style (erosion and attrition) Objectives: 1. describe the overall structural composition of resin composites. A solid that contains two or more distinct constituent materials or phases when considered at great than an atomic scale.
