Introduction to basic knowledge of the building materials, materials for prints and those materials used in certain phases of prosthetic work. Also introduction to materials for permanent and temporary fill.
Chemical properties, physical properties and clinical application of materials in dentistry
CONTENT OF THE SUBJECT
Theoretical teaching – methodical units
Standards of dental materials. EU Directive, the CE mark, ISO standards, GCP, GMP standard
Biocompatibility of dental materials. Concepts: medical devices, dental materials, biomaterijal, toxicity, biocompatibility. Tests for evaluation of dental materials biocompatibility. Chemical elements of importance for dental materials Chemical connections. Primary, valencione and medjumolekulske links Reaction bonding of dental materials. Neutralization as a basic chemical reaction in the process of hardening cement. Helatation as the main reaction in the process of hardening of zinc oxide-eugenol paste, EBA and polikarboksilatnih cemenata. Polymerization as the main reaction in the hardening of acrilate, composites and elastic material or in combination with the neutralization and helatacijom of poly-carboxilat and voice-jonomer cement Corrosion of dental materials. Electrochemical aspects of corrosion, forming microgalvan current, galvanic corrosion, tanning, metal plating and decay .. Electrolysis compensation.
Chemistry of print material. The chemical composition and hardening processes of thermoplastic mass, ZOE pastes, reversebile and irreversible hidrokoloida, silicone, polyethers and polisulphide. Chemistry materials meet. The chemical composition and the process of hardening of amalgam, cement, composites and kompomera. Intremollecular force. Origin of addiction, and repulsive and attractive force of the distance, the movement of molecules depending on the energy, thermal expansion. Influence intermollecular force of physical properties. Loading materials. Loading material stretching, pressing, bending, shearing, torsion. Chart of stress and strain. Modulus of elasticity, limit of elasticity, flow.
Characteristics of dental materials. Stiffness, plasticity, hardness, strength, resilience. Material fatigue. Resistance to shock. Hardness (Brinel, Vickers, Knup, Rokvel).
Viscosity material. Types of liquid. Hours, during solidification. Viscoelasticity. Elastic, anelastični, viscous, elastic materials. Flow and material relaxation
The behavior of materials under the influence of heat. Change physical properties, phase transitions. Phase diagram. Thermal expansion and contraction (linear relationship between the volume coefficient of expansion, the absolute and relative changes in dimensions)
Adhesion. Principles of adhesion, chemical and micromechanical adhesion, surface adhesion, problems with adhesion, capillary phenomena Cement. Classification, characteristics. Zinc-phosphate cement, cinkoksid eugenol cement, cement silikophosfate, policarbn and voice-jonomer cement.
Dental amalgam. Requirements, division, amalgamation, clinical characteristics, treatment of clinical work with amalgam, method of packaging, dosing, and factors that affect the quality of amalgam construction. Composite materials. The composition, classification, advantages and disadvantages, adhesive systems, compomers, ormocers, "smart composites", liquid and composites for sealing of fissures Materials for the early meet. Types, characteristics, temporary fill based on zinc oxide. Advantages and disadvantages. The importance of materials for temporary fill in the various therapeutic procedures.
The materials in endodontics. The division, based materials calcium hydroxide. Characteristics, advantages and disadvantages of certain groups of materials. Recommendations on use. Inelastic Otisni materials. Thermoplastic compound, cinkoksid eugenol paste. Characteristics, use, disadvantages. Disinfectants.
Otisni elastic material. Reversible and irreversible hidrokoloidi. Elastomers: Silicone.
Material for making working models. White, hard and improved hard plaster. Characteristics, composition, method of obtaining, service properties. Other materials for making working models (resins, cement).
Materials for making models of compensation. Waxes for modeling and design. Artificial resins in the model Refractory masses. Low temperature and high temperature Refractory masses. Binding, and thermal expansion of refractory higroskopska mass. Acrilate base for dentures. Requirements, classification, composition, characteristics, dimensional changes, porosity, materials- conditioners and liners. The structure, characteristics, processing of metals and alloys. Properties of metals. Reasons alloying, solid solutions, intermetallic compounds, solid solutions, state diagram, heat treatment of castings, material fatigue Dental alloys. Classification, division of alloys: the standards, the content of precious metals, chemical composition. Requirements for dental alloys. Different types of alloys used in dental practice. Ceramic materials. Requirements, division, composition. Characteristics of ceramic materials in metal-ceramic and ceramic systems. Mechanical arable ceramics.
Materials processing and polishing. Brass instruments, design and grinding performance. Natural and synthetic abrasive materials. Material for sanding and polishing (mechanical and electrolytic).
Materials in implantology. Requirements and classification. Metal implants. Non-metal implants. Clinical and biological response to dental implants
Materials in orthodontics. Wire, claims, materials for making wire, and choice of species. Print materials, artificial resins, materials for making working models
Materials in Periodontics. Materials for bone replacement and augmentaciju. Materials for making membranes. Composition, use characteristics, advantages and disadvantages. Materials in maksilofacial surgery. Surgical stitches (distribution, composition, packaging, sterilization). Materials in the development imobilizacionih Rails (features and characteristics). Materials in the development and reconstruction prosthesis epiteza face and jaw.
Practical teaching – methodical units
Stamenković D, Stomatološki materijali, Zavod za udzbenike i nastavna sredstva, Beograd 2003.