Course Description:

Structure of matter , physical and mechanical properties course are parts of the dental material courses,the dental material course provides a study of the composition, properties, and uses of most dental materials used in the dental field, as well as its physical and mechanical properties. Upon completion, you should be able to identify the accurate composition, usage and actual properties of such materials . Materials like Gypsums, waxes, acrylics, and metal materials as example will be full detailed and know the proper procedures for health, safety. The course also provides full details about most of dental procedures and clinical work starting from the students’ needs tell the professional dentist. The course includes step by step manipulation procedures for some materials and detailed clinical consecrations related to usage. The goal of this course is directed to build in dentist’s and students’ mind the accurate Understanding dental materials’ science that facilitates the identification of various products, describe their physical and chemical reactions, and demonstrate their proper usage. To easily identify the used materials, as impression materials, describe their physical application, and demonstrate their proper usage. Use appropriate terminology with respect to dental materials. . Identify alloys used in dentistry and their proper usage Define metal structures. Various laboratory procedures and errors, like how to identify dental casting, investments, dental soldering. and more than you expect about the dental materials.in most easy way to learn. How to deal with different materials in oral cavity.

Learning Outcomes:

– Nature and Structure of matter, Atoms.

– The types of bonds

– The crystalline solids

– Amorphous solids and space lattice

– Atomic packing if space lattice systems and isomerism

– Difference between covalent and ionic bonds

– Free electric cloud

– Metallic properties

– Secondary bonds

– van der waal forces

– Polarization (permeant dipole –fluctuating dipole)

– Molecular solids properties related to structure

– Displacive transformation and reconstructive transformation and crystal imperfections

– Learning the Physical properties of the materials, Mass related properties , thermal properties ,Specific Heat , melting point, heat of fusion , latent heat of fusion ,thermal conductivity and diffusivity .

– Coefficient of thermal expansion and contraction and water sorption

– Optical properties, light and color, transmission, reflection, smooth reflection, diffuse reflection and refraction

– The Scattering of light, fluorescence

– Laser applications, interaction light with materials and application in dentistry color

– Color parameters (hue, value and Chroma)

– Secondary and complementary colors

– Metamerism and observer and light perception

– Color fatigue

– Shelf life

– Working and setting time

– Mechanical properties

– Types of stress, compressive, shear, tensile and complex stresses

– Elastic stain, plastic or permeant stain

– Stress strain curve, proportional limit ,yield strength , ultimate tensile strength and fracture strength

– young’s modulus of elasticity (rigidity) and flexibility

– Ductility, Malleability and brittleness

– Fracture toughness, resilience and impact strength

– Transverse strength, cantilevering, bending tensile compression tests

– Fatigue and Hardness and Wear resistance

– Follow viscoelasticity and creep