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Questions and Answers
Which of the following is true about tooth enamel?
What is biomineralization?
What is adhesion or adhesive strength in dentistry?
What is microleakage in dentistry?
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What is dentine?
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What are dental ceramics used for?
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What are the properties of ceramics used in dentistry?
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What is zirconia?
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What are the methods used for surface conditioning in dentistry?
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Which of the following is true about tooth enamel?
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What is biomineralization?
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What is adhesion or adhesive strength in dentistry?
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What is microleakage in dentistry?
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What is dentine?
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What are dental ceramics used for?
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What are the properties of ceramics used in dentistry?
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What is zirconia?
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What are the methods used for surface conditioning in dentistry?
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Which of the following materials is used in orthopedics and can become harder when zirconia particles are added to it?
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What is microleakage in dentistry?
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What is biomineralization?
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What is the composition of tooth enamel?
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What is the measure of the load-bearing capability of an adhesive joint called?
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What is dentine?
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What are dental ceramics used for?
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What is zirconia?
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What surface conditioning method is used to modify zirconia surface properties for durable and hydrolytically stable adhesion?
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Study Notes
Dental Materials and Techniques: Biomineralization, Adhesive Restorations, and Dental Ceramics
- Tooth enamel is a hard biomineral composed of apatite fibers and is almost fully deprived of organic components.
- Biomineralization is the process by which living organisms produce minerals to harden or stiffen existing tissues.
- Adhesion or adhesive strength is the measure of the load-bearing capability of an adhesive joint, and it involves the contact between the adhesive and adherend surface, reduced stress concentration at the interface, and protection from the oral environment.
- Microleakage is a problem when considering adhesion in dentistry, and phosphoric acid demineralizes enamel and dentine by removing calcium, creating microporosities, and increasing surface free energy.
- Dentine is a porous biological composite made up of apatite crystal filler particles in a collagen matrix, and it can be bonded using etch and rinse adhesives or self-etch adhesives.
- Dental ceramics are used for tooth repair and replacement, are biocompatible, and have high aesthetics, but they require etching prior to adhesion and can be classified according to their firing temperature.
- Ceramics have properties such as high compressive strength, low tensile strength, a coefficient of thermal expansion that matches that of enamel and dentine, and good aesthetics, but they can be affected by the hostile oral environment.
- Ceramic materials used in dentistry include glass-ceramics, hybrid ceramics, and polycrystalline ceramics, which have different qualities and indications.
- Alumina is a hard and crystalline material that is used in orthopedics and can become harder when zirconia particles are added to it.
- Zirconia is dense and hard, highly biocompatible, slightly soluble in water, and has a higher bending strength than alumina.
- Surface conditioning methods such as grit blasting, pyrochemical silica coating, tribochemical silica coating, hydrofluoric acid etching, and zirconia surface treatment are used to modify surface properties for durable and hydrolytically stable adhesion.
- Zirconia surface treatment involves acid etching with hot acids, abrasion with specific burs, coating with porcelain micro pearls, selective infiltration etching, air abrasion with alumina, and lasers.
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Description
Test your knowledge on dental materials and techniques with this quiz! From the biomineralization of tooth enamel to the use of adhesive restorations and dental ceramics, this quiz covers a range of topics related to dental materials and techniques. You'll learn about the properties of different ceramic materials used in dentistry, surface conditioning methods for durable adhesion, and the challenges posed by the oral environment. Take this quiz to see how much you know about the science behind dental restorations and replacements.
