DNMATL1
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| 🇬🇧 | 🇬🇧 |
| The study of composition and properties of dental materials and the manner in which they interact with the environment they are placed. | Science of Dental Materials |
| Science of Dental Materials deals with what? | • physical properties • mechanical properties • biological properties • interaction with oral cavity (tissues) |
| Why are we studying DNMATL1? | To gain knowledge to make optimal selection of materials |
| What is the appearance of the materials? | In liquid, powder, and paste form |
| What is the main goal in dentistry? | To maintain or improve the quality of life through replacement or alteration of tooth surfaces |
| Temperature variations in the oral environment | 32 degrees to 37 degrees Celsius |
| Temperature variations in the oral environment during intake of cold/hot drinks | 0 degrees to 70 degrees Celsius |
| PH of saliva | Neutral (7.0) |
| Characteristic of a dental material that is strong, resistant to fracture | Mechanically stable and durable |
| Characteristic of a dental material that does not deteriorate over time | Resistant to corrosion |
| Characteristic of a dental material that is not changes with a little change in temperature and solvent | Dimensionally stable |
| Characteristic of a dental material that insulates against thermal/electrical change | Minimal conduction |
| Characteristic of a dental material that is minimal/reasonable effort and time needed to use | Easy to manipulate |
| Characteristic of a dental material that is not unpleasant to patient | Tasteless and odorless |
| Characteristic of a dental material that is easily maintained or fixed | Cleanable/repairable |
| Characteristic of a dental material that is affordable | Cost-effective |
| Where are dental materials used in? | Oral cavity and laboratory |
| To prevent any pathology (disease), cavities, infections | Preventive Dentistry |
| Aims to provide resistance to the progression of caries | Preventive Dentistry |
| Application of fluoride in paste form | Fluoride Therapy |
| Repairs or replaces defected tooth structures | Restorative Dental Materials |
| Amalgam, composites, compomers, bonding agents, ceramics, liners, cement bases and polymers are what type of dental materials? | Restorative Dental Materials |
| Used in the process of fabricating prostheses | Auxillary Dental Materials |
| Combination of two or more metallic elements to give strength and resistance to corrosion | Dental alloy |
| Precious metal (60% gold, platinum) | High noble |
| 25% noble material | Semiprecious |
| Inorganic, non-metallic materials made by man by the heating of raw minerals at high temperature, hard and abrasive, and brittle | Dental pocelains |
| Hand-powered dental instruments | Hand instruments |
| Credited with the first acceptable nomenclature and classification of hand instruments | Greene Vardiman Black |
| Material harder than stainless steel | Carbon steel |
| Shiny, loses keen edge during use more quickly | Stainless steel |
| Perfectly straight, smooth or eight sided, serrated for better gripping or control of the instrument | Handle |
| Working part of the instrument | Working end |
| It is connected to the handle by the shank | Working end |
| Cutting edge | Blade |
| Working end on non-cutting instruments | Nib or face |
| Clear image without distortion on a mouth mirror | Front surface |
| Magnifies the object | Concave |
| For diagnosing calculus and caries and exploring of pockets, restorations and furcations | Dental explorer |
| No. 23 explorer is also known as? | Shepherd's hook |
| No. 17 explorer | Cowhorn or pigtail explorers |
| Tufts 17/23 explorer | Wilken’s Explorer |
| Contains both no. 17 and no. 23 on the same instrument; opposite sides of each other | Wilken’s Explorer |
| Digging out failed restorative material | Excavators |
| Speed of low speed hand instruments | 3,000-6,000 rpm |
| Speed of medium speed hand instruments | 20,000-45,000 rpm |
| Speed of high speed hand instruments | 45,000-1,000,000 rpm |
| Speed of ultra speed hand instruments | Above 1,000,000 rpm |
| Used for precise drilling and finishing and for grinding where material removal is not a concern | Diamond burs |
| Used in tooth preparation in fabricating crowns | Diamond burs |
| Made of tungsten carbide | Carbide burs |
| Began the process of “standardization” | Greene Vardiman Black |
| Products being developed with specific properties and designed for a definite purpose | Standardization |
| Covers alloys, composed of mainly silver, tin, and/or copper, used in the preparation of dental amalgam | ANSI/ADA STANDARD NO. 1 – ALLOY FOR DENTAL AMALGAM: 2003 (REAFFIRMED 2013) |
| This standard specifies the requirements and test methods for mercury suitable for the preparation of dental amalgam | ANSI/ADA STANDARD NO. 6 – DENTAL MERCURY: 1987 (REAFFIRMED 2005) |
| Covers classification, requirements, and test methods for synthetic polymer and ceramic teeth that are manufactured for use in prostheses used in dentistry | ANSI/ADA STANDARD NO. 15 – ARTIFICIAL TEETH FOR DENTAL PROSTHESES: 2008 (REAFFIRMED 2013) |
| Covers elastomeric dental impression materials based (rubber impressions) | ANSI/ADA STANDARD NO. 19 – DENTAL ELASTOMERIC IMPRESSION MATERIALS: 2004 (REAFFIRMED 2014) |
| This standard establishes the requirements for burs suitable for use with straight and angle dental handpieces | ANSI/ADA STANDARD NO. 23 (WITH ADDENDUM) – DENTAL AXCAVATING BURS: 1982 (REAFFIRMED 2015) |
| Covers gypsum products used for dental purposes such as making oral impressions, molds, casts, dies or model bases, and mounting models | ANSI/ADA STANDARD NO. 25 – DENTAL HYPSUM PRODUCTS: 2000 (REAFFIRMED 2010) |
| This standard applies to diagnostic x-ray equipment used for intraoral radiography | ANSI/ADA STANDARD NO. 26 – DENTAL X-RAY EQUIPMENT: 1991 |
| Covers requirements for dental resin-based restorative materials supplied in a form suitable for mechanical mixing, hand mixing, or external energy activation | ANSI/ADA STANDARD NO. 27 – RESIN-BASED FILLING MATERIALS: 1993 |
| Specifies requirements for non-eugenol cements containing zinc oxide and aromatic oils suitable for temporary cementation | ANSI/ADA STANDARD NO. 30 – DENTAL ZINC OXIDE – EUGENOL AND ZINC OXIDE – NON-EUGENOL CEMENTS: 2013 |
| This standard specifies requirements and test methods for dental cartridge syringes which are reusable dental syringes | ANSI/ADA STANDARD NO. 34 – DENTAL CARTRIDGE SYRINGES: 2013 |
| Covers ceramics suitable for use in the fabrication of metal-ceramic dental restorations | ANSI/ADA SNTANDARD NO. 38 – METAL-CRAMIC DENTAL RESTORATIVE SYSTEMS: 2000 (REAFFIRMED 2015) |
| This standard is for mechanical dental amalgamators used for the mixing of alloy and mercury to make dental amalgam | ANSI/ADA STANDARD NO. 43 – ELECTRICALLY POWERED DENTAL AMALGAMATORS: 1986 (REAFFIRMED 2015) |
| Covers reusable and disposable impression trays used for delivering impression materials into the oral cavity for the purpose of making impression (negative copies) of teeth and oral tissues | ANSI/ADA STANDARD NO. 87 – DENTAL IMPRESSION TRAYS: 1995 (REAFFIRMED 2014) |
| Are based on the laws of physics that describe mass, energy, force, light, heat, electricity, and other physical phenomena | Physical properties |
| Is a characteristic of a matter that may be observes and measured without changing the chemical identity of a sample | Physical properties |
| The ability of a material to flow | Viscosity |
| Calculated based on the size of the indentation, the load on the tip, and the shape of the tip | Hardness |
| The harder the materials, the more? | Abrasion resistance |