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Structure of matter ,physical &mechanical properties
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1- Dental Materials Def./introduction/ Structure of matter / intro. Atom / intro. types of bonds Copy 05 minLecture1.1
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2- Follow types of bonds Copy 05 minLecture1.2
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3- Follow types of bonds / crystalline solids and amorphous solids Copy 05 minLecture1.3
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4- Follow crystalline solids and amorphous solids / space lattice –def.-shapes-unit cells-/atomic packing Copy 05 minLecture1.4
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5- Atomic packing –simple cubic system –face centered cubic- body centered cubic / isomerism /silica Copy 05 minLecture1.5
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6- Details /dental materials Copy 05 minLecture1.6
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7- Details Atoms /details bonds (primary (ionic-covalent) Copy 05 minLecture1.7
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8- Covalent bond –difference between covalent and ionic bonds-free electric cloud-metallic properties / secondary bonds – Van Der Waal forces-polarization Copy 05 minLecture1.8
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9- Polarization – permanent dipole –fluctuating dipole /solids classification (type of bond-crystalline structure )/ atomic and molecular solids Copy 05 minLecture1.9
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10- Crystalline or amorphous solids Copy 05 minLecture1.10
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11- Crystal lattice (atoms in space) /Unit cells/properties related to structure /cubic structure/simples cubic atomic packing / Copy 05 minLecture1.11
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12- Face centered cubic atomic packing /isomerism and polymorphism/silica polymorphism Copy 05 minLecture1.12
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13- Heat (alpha and beta quartz) /displacive transformation and reconstructive transformation ( tridymite) / crystal imperfections Copy 05 minLecture1.13
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14- Imperfections –point defect line defect- plane defect Copy 05 minLecture1.14
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15- Physical properties /Def./ Mass related properties (Density) /thermal properties Copy 05 minLecture1.15
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16- Specific Heat – melting point-heat of fusion –latent heat of fusion –thermal conductivity and diffusivity Copy 05 minLecture1.16
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17- Thermal diffusivity / coefficient of thermal expansion and contraction / water sorption Copy 05 minLecture1.17
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18- Optical properties /light and color /transmission ,reflection, smooth reflection, diffuse reflection, refraction Copy 05 minLecture1.18
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19- Scattering of light , fluorescence, laser Copy 05 minLecture1.19
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20- Laser applications /interaction light with materials and application in dentistry / color Copy 05 minLecture1.20
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21- Follow color / color parameters (hue ,value and Chroma ) / clinical consideration / primary , secondary and complementary colors / Copy 05 minLecture1.21
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22- Metamerism (light source ) / surroundings and light perception / observer and light perception / color fatigue / Copy 05 minLecture1.22
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23- Color perception / color blindness/ surface and color perception / object and color perception /shelf life Copy 05 minLecture1.23
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24- shelf life / working and setting time /mechanical properties /def. / force /stress/strain /types of stress ( compressive- Copy 05 minLecture1.24
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25- types of stress ( compressive-shear – tensile ) / complex stresses / elastic stain def./ plastic or permeant stain /stress strain curve –illustration of the curve Copy 05 minLecture1.25
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26- proportional limit /yield strength /ultimate tensile strength Copy 05 minLecture1.26
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27- fracture strength /diff.between ultimate tensile and fracture points / young’s modulus of elasticity (rigidity) / flexibility Copy 05 minLecture1.27
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28- stress related properties -Ductility and Malleability and brittleness Copy 05 minLecture1.28
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29- Energy related properties –fracture toughness / resilience and toughness /material properties determination through the curve / impact strength / Copy 05 minLecture1.29
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30- Transverse (flexural) strength /cantilevering /bending /impact strength / tests /tensile compression tests Copy 05 minLecture1.30
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31- Fatigue /cyclic loading / fatigue limit/surface properties / Hardness / Copy 05 minLecture1.31
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32- Follow Hardness /Wear resistance/ viscoelasticity – Newtonian –Dilatant –pseudoplastic fluids Copy 05 minLecture1.32
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33- Follow viscoelasticity – Newtonian –Dilatant –pseudoplastic / creep Copy 05 minLecture1.33
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