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Dental Alloys Classification and Properties
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Dental Alloys Classification and Properties

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Questions and Answers

ما هو النسبه المطلوبة من الذهب والبلاτινوم والبالاديوم في السبائك النبيلة؟

  • أكثر من 40٪ (correct)
  • أقل من 40٪
  • 75٪
  • 90٪
  • ما هو الاسم الجماعي للسبائك التي تحتوي على الفضة والبالاديوم والتي تستخدم في الأworks التاجية والجسور السنية؟

  • سبائك الفضة والبالاديوم (correct)
  • سبائك التيتانيوم
  • سبائك النحاس
  • سبائك الكوبالت والكروم
  • ما هو الاستخدام الرئيسي لسبائك التيتانيوم في صناعة الأسنان؟

  • جسور ومتدلية
  • تاج وتدليع
  • implants وتدليع (correct)
  • أقواس علاجية
  • ما هو الاسم الجماعي لسبائك التي تحتوي على الكوبالت والكروم والتي تستخدم في جسور ومتدالية سنية؟

    <p>سبائك الكوبالت والكروم</p> Signup and view all the answers

    ما هو الاستخدام الرئيسي لسبائك النحاس في صناعة الأسنان؟

    <p>أقواس علاجية</p> Signup and view all the answers

    ما هو الاسم الجماعي لسبائك التي تحتوي على الذهب والبلاتينوم والبالاديوم والتي تستخدم في صناعة الأسنان؟

    <p>سبائك النبيلة</p> Signup and view all the answers

    Study Notes

    Dental Alloys

    Classification

    • Noble Alloys: High in gold, platinum, and palladium content (>40%)
    • Non-Noble Alloys: Lower in gold, platinum, and palladium content (<40%)
    • Base Metal Alloys: Contain non-precious metals like nickel, chromium, and titanium

    Properties

    • Corrosion Resistance: Ability to resist corrosion in oral environment
    • Strength: Resistance to deformation and fracture
    • Ductility: Ability to be shaped without breaking
    • Hardness: Resistance to scratching and wear
    • Biocompatibility: Ability to withstand oral tissues without adverse reaction

    Types of Dental Alloys

    • Gold Alloys: High in gold content (>75%), used for inlays, onlays, and crowns
    • Silver-Palladium Alloys: Used for crowns, bridges, and dentures
    • Copper Alloys: Used for dentures and orthodontic appliances
    • Titanium Alloys: Used for implants, crowns, and bridges due to high strength, low density, and biocompatibility
    • Cobalt-Chromium Alloys: Used for partial dentures, crowns, and bridges due to high strength, corrosion resistance, and biocompatibility

    Manufacturing Processes

    • Casting: Melting and pouring alloy into a mold to create a desired shape
    • Forging: Shaping alloy through heat and pressure
    • Machining: Cutting and shaping alloy through mechanical means
    • Welding: Joining two alloy pieces together through heat and pressure

    Clinical Applications

    • Restorative Dentistry: Used for inlays, onlays, crowns, and bridges
    • Prosthodontics: Used for dentures, partial dentures, and implant-supported prosthetics
    • Orthodontics: Used for orthodontic appliances and brackets
    • Implantology: Used for dental implants and implant-supported prosthetics

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    Description

    Learn about the classification, properties, and types of dental alloys, including their manufacturing processes and clinical applications in restorative dentistry, prosthodontics, orthodontics, and implantology.

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