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EFDA OREGON STUDY TEST ACTUAL 2025/2026 QUESTIONS & 100% CORRECT ANSWERS

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EFDA OREGON STUDY TEST ACTUAL 2025/2026 QUESTIONS & 100% CORRECT ANSWERS Etchant ? - Answer -Critical for enamel and dentin in the cavity prep for good chemical bond. Glass Ionomer used as a base? - Answer -Good adhesion to enamel and dentin, release fluoride and has bonding strengths. Zinc-oxide-eugenol type 1used as a base? - Answer -Sedative, insulating helps with irrated pulp. CANT USE UNDER GLASS IONOMER AND COMPOSTIE. Zinc phosphate type 2 used as a base? - Answer -Good base for it thermal insulation qualities and can be used under polycarboxylate, ionomer and it can irrate the pulp. Trituration - Answer -Means mixing dental alloy with mercury. Amalgamation - Answer -Actual chemical reaction that occurs between the alloy and mercury. Alloy - Answer -Combination between alloy and mercury. Polycarboxylate used as a base? - Answer -Has elastic properties and contains fluoride and can be put under any restoration. Also proactive and insulating.IRM used as a base? - Answer -last for 6-12 months and is temp. Also has a sedative base. Sedative base ? - Answer -Help with soothing the pulp for decay that is irrating the pulp. Insulating base? - Answer -Placed in deep cavity preps to protect the tooth from thermal shock. Protective base? - Answer -Placed before the restoration is place to protect the pulp. Primer? - Answer -Can also be know as desensitizer. Placed under restorative material. Fluoride varnish? - Answer -Release fluoride on enamel, root structure and the dentin surfaces. Varnish? - Answer -Organic solvent, seals dentin tubules and reduces microleakage. Micro- mechanical? - Answer -Retention between the tooth structure and the restoration. Three things dental bases can do for the tooth? - Answer -1. protective base 2. insulating base 3. sedative base Calcium Hydroxide? - Answer -Used as a base/ liner, promotes secondary dentin.Smear layer? - Answer -Very thin layer of debris on newly prepared dentin. Crown matrix former? - Answer -Plastic form that is shaped

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