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Dental Materials
Key Terms Mod 4 Session 9 Matching
Question | Answer |
---|---|
Provisional | Temporary crown or bridge made to protect the prepared tooth or teeth while the permanent crown or bridge is being made. |
Fabrication | The process of being made or constructed. |
Direct Technique | A restoration made directly in the mouth. |
Indirect Technique | A restoration made at a lab. |
Margin | Junction where provisional meets the tooth structure. |
Stent | Any material used to make a mold of an original contour. |
Contour | The overall shape or form of the original tooth structure. |
Embrasure | The V-shaped space formed by the contour and position of adjacent teeth. |
Dual-curing process | A process in which the material begins to harden through self-curing and then requires a final cure with a visible light unit. |
Self-curing process | The hardening or setting process when two chemical materials are mixed. |
Green stone | A stone used for finishing the edges of a provisional, to make sure all jagged edges are smoothened. |
Crimping | The act of placing folds, or waves into a material. |
Mesiodistal measurement | The measurement used to measure the dimentional distance from mesial to distal. |
Methacrylate | Acrylic or plastic, most often mixed as a powder/liquid system, self-cured, fracture resistant, and easily polished. |
Bis-GMA | A composite provisional restorative material , has a good marginal fit, good ability to be polished, and a very low exothermic reaction. |
Contouring pliers | Used to smooth the aluminum crown and contour it so that it is wider at the proximal contact and more narrow at the gingiva. |
Preformed crown | Pre-made come in different shapes and sizes, are used for single unit temporary crowns only. |
Aluminum provisional crown | Aluminum shell crowns available only for posterior teeth where aesthetics is not a concern. |
Celloid provisional crown | Clear shells cut to fit the tooth shape and height, used for premolars and anterior teeth. |