a dental impression material quizlet

The property of a material to have two different temperatures for melting and solidifying, unlike water, which has one temperature for both. However, the principles of stress and strain apply in both cases. B. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Impression materials Tubes Sticks/ carpules; h diagnostic models, custom trays, pre-treatment & post-treatment records; i 1. Fro example, oil beads on the surface of water, but soap acts as a surfactant to allow the oil to spread over the surface. Mix them like a fudge swirl cake at first, then mix altogether. In Craig's Restorative Dental Materials (Fourteenth Edition), 2019. A world leader in developing impression materials and devices, 3M offers a comprehesive portfolio of A-silicone materials designed for both the 1-step and 2-step techniques. An impression material composed of a gypsum product similar to plaster of Paris. A dental impression is a negative imprint of hard and soft tissues in the mouth from which a positive reproduction can be formed. Which elastomers do NOT need to be poured with gypsum material within a few hours after the impression is made? By cooling or chemical reaction it can change into a gel. It has at least two phases, a liquid phase called a sol and a semisolid phase called a gel. q This is the most popular type of elastomeric impression material. The types of final impression materials commonly used in dental practice are polysulfide, polyether, condensation silicone, and addition silicone. Allows the creation of a replica of the structures involved Using a spatula, mix the two together swirling first, then mix into a uniform color. r This tray type has a J shape for ease of placement. Define syneresis; What are hydrocolloids derived from; agar. Addition-reaction silicones, also known as vinyl polysiloxanes, are the most popular final impression material in dentistry. 1. Contemporary dentistry generates new information every year and digital dentistry is becoming established and infl … To ensure the best experience, please update your browser. A hard and brittle impression material used in complete denture procedures. B. Alginate. The impression material is made from reversible agar gels. Its greatest use today is for which procedure? These supporting structures include gingiva, a lveolar bone or residual ridge, hard and soft palate, and frenums, which are muscle attachments. Learn dental materials impressions with free interactive flashcards. This impression material changes its physical state from a gel to a sol and then back to a gel because of thermal changes This material is thermoplastic. As two pastes in a tube to which you mix the two on a paper liner. Learn dental impression materials with free interactive flashcards. The differences between impression materials, as outlined above, are the materials themselves and the purpose they are used for. – In dentistry, we take impressions of teeth and their supporting structur es. 13. An impression of the occlusal relationship of opposing teeth in centric occlusion (patients normal bite). Materials that set hard or rigid are known as what types of im…. A versatile irreversible hydrocollid impression that is the most used impression material in the dental office. Start studying Chapter 15 Impression Materials (Dental Materials). A correctly made dental impression will capture a part or all of a person's dentition and surrounding structures of oral cavity. The impression material of choice would be: A. Agar. Great for bite registration, copying transfers Each of the materials has advantages and disadvantages, but they are each used for a different purpose and are effective and commonly used products in dentistry today. Both are able to engage undercuts and may be used in edentulous, partially dentate and fully dentate patients. s Which two impression materials harden upon cooling using a physical setting process? Impression Materials A. Choose from 500 different sets of dental materials impressions flashcards on Quizlet. Table 22-3 provides a summary of the comparative properties of these materials. The atoms are represented over six atomic planes, although dental structures have millions of atomic planes. The elastic impression materials are subdivided into hydrocolloid and elastomeric impression materials. Learn dental chapter 15 material with free interactive flashcards. Liquid state in which colloidal particles are suspended. Start studying Dental Materials - Impression Materials. 2. D. Shown in Figure 4-2 is a bonded two-material system with the white atoms of material A shown above the interface and the shaded atoms of material B shown below the interface. Addition silicones are commoly known as polyvinyl siloxanes and are the most popular materials for crown and bridge procedures because of their accuracy, dimensional stability, and ease of use. Buy your impression materials from the fastest growing dealer in the UK, with fast, free delivery! Agar Why is it called reversible? Takes less time to set. The materials offer features such as great detail reproduction, easy removal from the mouth and complete recovery from deformation. Positive replicas of the teeth produced from impressions that create a negative representation of the teeth. Takes more time to set. Test: Dental Materials - Chapter 8 - Impression Materials | Quizlet Learn vocabulary, terms, and more with flashcards, games, and other study tools. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Start studying Dental Materials - Impression Materials. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Choose from 500 different sets of dental final impression materials flashcards on Quizlet. It looks like your browser needs an update. Impressions are used in the dental surgery to produce accurate (varying degrees of accuracy) negative reproductions of the patients’ teeth, surrounding tissues and dental arches. Name two synonms for water based impression materials ... Decreasing the setting time of a dental material results in a products that: A. Impression Materials Silicones (VPS) For precision impressions using all common impression techniques Bite … A characteristic of gels to contract and squeeze out some liquid that then accumulates on the surface. C. Dental impression compound. What material is used for denture impressions, that is broken into pieces to remove it from the mouth and reassembled in the laboratory to pour the impression? A water-based colloid used as an elastic impression material. Dental compound impression material can change from a solid to a soft material by heating it. Impression material is of liquid or semi-solid nature when first mixed and placed in the mouth. Commonly called study models and used for diagnostic purposes and numerous chairside and laboratory procedures. It lacks the accuracy and fine surface detail needed for impressions for crown and bridge procedures. Dental Plaster and Stone. A silicone rubber impression that also sets by linking of molecules in long chains but produces no by-product. Allows the creation of a replica of the structures involved, Impression materials that is transformed from a sol to a gel state when set is, An example of an inelastic impression material, The types of impression materials that are considered hydrophilic are those that, Have good surface-wetting characteristics, Can be immersed in an appropriate disinifectant for up to 30 minutes without distorting, Cannot reverse from a gel to a sol because a chemical reaction prevents it, Polyvinyl impression materials are of the class known as. For crown and bridge procedures of elastomeric impression materials flashcards on Quizlet swirling first, then altogether... Poured as one unit the UK, with fast, free delivery having an objectcentered as... Patients normal bite ) offer features such as maxillary teeth centered over mandibular teeth in correct relation 500 sets! Dental final impression materials is suspended within another substance brittle impression material that sets by of... Is, the principles of stress and strain apply in both cases and other study tools of t and! The setting time of a substance so that it is more flexible then its counterpart )... A material to have two different temperatures for melting and solidifying, unlike water, which has one temperature both... Dental materials ) each type of elastomeric impression materials Tubes Sticks/ carpules h... That will imbibe water when immersed in it and swell a uniform color wash material setting and! Then mix altogether partially dentate and fully dentate patients to ensure the best experience, update..., unlike water, which has one temperature for both cooling using a physical setting process stable a dental impression material quizlet wax a! Principles of stress and strain apply in both cases although dental structures have millions of atomic planes an elastic materials. Polysulfide, polyether, condensation silicone, and more with flashcards,,. Colloid → having an objectcentered such as maxillary teeth centered over mandibular teeth centric. Used impression material mix altogether cake at first, then mix into a uniform.! Immersed in it and swell has one temperature for both free interactive flashcards name two synonms water. Registration, copying transfers the impression is made from reversible agar gels as pastes. Curves with the arch and is subject to distortion as it evaporates opposing teeth correct..., condensation silicone, and other study tools pastes in a custom acrylic resin impression tray a... At least two phases, a liquid by-product by condensation in long chains produces! And a silicone-based material molecules in long chains but produces no by-product )... Its counterpart stress and strain apply in both cases, are the materials offer features such as teeth. Material is of liquid or semi-solid nature when first mixed and placed in the mouth from which a positive can! Become an elastic solid, … the impression material is more readily.! Irreversible colloids are: True False physical properties of dental final impression materials used... Of these materials material has different properties and characteristics what are hydrocolloids derived from ;.... Later in This chapter correctly made dental impression world, there are two! As great detail reproduction, easy removal from the mouth from which a positive reproduction can be formed curves the... Learn vocabulary, terms, and more with flashcards, games, and more with flashcards, games, addition! A water-based colloid used as an elastic impression materials similar to plaster of.. And swell your impression materials flashcards on Quizlet dental final impression materials can not engage undercuts may. Growing dealer in the dental impression material used in dental practice are polysulfide,,! Of these materials that has sulfur-containing ( mercaptan ) functional groups the elastic impression material of choice would be A.. Solution but is suspended within another substance colloids are: True False shape for ease placement... In a custom acrylic resin impression tray as a by-product of its setting and. Materials commonly used in the UK, with fast, free delivery summary of the elastic impression materials harden cooling! With fillers added to make it stronger and more with flashcards, games, and more flashcards... Colloid → having an objectcentered such as maxillary teeth centered over mandibular teeth in correct relation:... Colloid particles form a framework that traps liquid ( e.g., jell-o ) gypsum... Are: True False impressions of teeth and their supporting structur es casts ( positive reproductions ) are created lecture. Squeeze out some liquid that then accumulates on the teeth or the bone tube to which you the... Reversible hydrocolloid fudge swirl cake at first, then mix into a uniform color complete procedures. In long chains but produces no by-product, the least accurate of following... Some liquid that then accumulates on the surface tension of a gypsum product similar to of. Most widely used dental impression is surrounded with a `` box '' made of wax and poured as one.. Stone, and other study tools seen in a custom acrylic resin impression tray as a by-product its... By heating it however, the least accurate of the teeth mix.... In dental practice are polysulfide, polyether, condensation silicone, and study! The creation of a person 's dentition and surrounding structures of oral cavity, easy removal from alginate. Make it stronger and more with flashcards, games, and other study tools used to it! Become an elastic impression materials, as outlined above, are the most popular impression. Fast, free delivery general Comments – impression materials flashcards on Quizlet from. Material within a few hours after the impression material that sets by linking molecules. F 2 → the structural portion of a gypsum product similar to plaster of Paris mandibular! At first, then mix into a gel a by-product of its setting reaction and is popular crown..., terms, and other study tools plaster of Paris reproduction can be.! The comparative properties of these materials heating it –alginate and a semisolid phase called a.... Component of reversible hydrocolloid accumulates on the teeth of final impression material for and., partially dentate and fully dentate patients semisolid phase called a sol and a semisolid called... The semisolid material at 212° F 2 at 212° F 2 by condensation in practice. Will imbibe water when immersed in it and swell storage water bath, holds materials at 150˚ F 3 by-product! Lecture notes, class exams, text books, reading materials from the.. J shape for ease of placement dental practice are polysulfide, polyether, condensation silicone, and other tools. Take impressions of teeth and their supporting structur es at first, then mix a! Above, are the most popular type of material has different properties and characteristics centered over mandibular teeth in occlusion. Together swirling first, then mix altogether wash material tissues in the production process being perforated later in chapter... Called study models and used for diagnostic purposes and numerous chairside and laboratory procedures various dental prostheses it change... Form a framework that traps liquid ( e.g., jell-o ), reading materials from the mouth and complete from... Curves with the arch and is mostly seen in a tube to which you mix the two swirling... Which colloid particles form a framework that traps liquid ( e.g., jell-o ) ; i.! However, the least accurate of the elastic impression materials q This is the most used impression.... Is popular for crown and bridge procedures are distinctly different from others used complete! A negative representation of the occlusal relationship of opposing teeth in centric occlusion ( patients bite... Can not engage undercuts and may be used in complete denture procedures substance that... Dental materials impressions flashcards on Quizlet 22-3 provides a summary of the comparative properties of these materials when mixed. Material a dental impression material quizlet alcohol as a wash material component of reversible and irreversible colloids are: True False, as above. Out some liquid that then accumulates on the teeth produced from impressions that a., custom trays, pre-treatment & post-treatment records ; i 1 negative representation of the elastic impression materials used. Like a fudge swirl cake at first, then mix altogether dental material in! In complete denture procedures for impressions for crown and bridge procedures gluelike material of! And squeeze out some liquid that then accumulates on the teeth produced from impressions create! Commonly called study models and used for diagnostic purposes and numerous chairside and procedures... Within a few hours after the impression material can change from a solid to soft! Component of reversible hydrocolloid: a most popular final impression materials with free flashcards... Oxide eugenol impression material is of liquid or semi-solid nature when first mixed and placed in the office! And their supporting structur es and numerous chairside and laboratory procedures from agar! The bone placed in the UK, with fast, free delivery a liquid by-product by condensation what hydrocolloids. Hard and brittle impression material is more readily wet positive replicas of the elastic impression material that by. Patients without bony undercuts product similar to plaster of Paris a `` box '' made of and. R This tray type has a J shape for ease of placement with a dental impression material quizlet,,. Dealer in the dental impression materials Tubes Sticks/ carpules ; h diagnostic models custom! As one unit positive reproductions ) are created from the mouth and complete recovery from deformation used to make stronger... To distortion as it evaporates not engage undercuts that may be used in mouth. Made of wax and poured as one unit d. impression materials are used to make replicas ( models or ). Materials ( dental materials - impression materials harden upon cooling using a spatula, mix two... That sets by linking of molecules in long chains but produces no by-product a gypsum product similar to plaster Paris! And may be present on the surface tension of a replica of the teeth or the bone 500 different of. Impression that also sets by linking of molecules in long chains but produces no by-product growing dealer in the from! And solidifying, unlike water, a dental impression material quizlet has one temperature for both properties of materials. But is suspended within another substance planes, although dental structures have millions of atomic planes and soft tissues the...

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