Podcast
Questions and Answers
The pH of saliva is always acidic.
The pH of saliva is always acidic.
False (B)
Dental materials are used in medicine.
Dental materials are used in medicine.
False (B)
Ceramics are a type of polymer.
Ceramics are a type of polymer.
False (B)
The oral environment is characterized by a constant temperature.
The oral environment is characterized by a constant temperature.
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An ideal dental material should be resistant to corrosion.
An ideal dental material should be resistant to corrosion.
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The Greek word 'poly' means 'one'.
The Greek word 'poly' means 'one'.
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Composites are a mixture of three or more classes of materials.
Composites are a mixture of three or more classes of materials.
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Dental implants are a type of endodontic material.
Dental implants are a type of endodontic material.
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The study of composition and properties of dental materials is a subfield of medicine.
The study of composition and properties of dental materials is a subfield of medicine.
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Dental materials are fabricated to be used in both dentistry and medicine.
Dental materials are fabricated to be used in both dentistry and medicine.
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The oral environment is characterized by a constant pH.
The oral environment is characterized by a constant pH.
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An ideal dental material should be biocompatible and toxic.
An ideal dental material should be biocompatible and toxic.
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The Greek word 'meros' means 'one'.
The Greek word 'meros' means 'one'.
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Composites are a mixture of one or more classes of materials.
Composites are a mixture of one or more classes of materials.
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Dental restorations include crowns and bridges.
Dental restorations include crowns and bridges.
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Temperature fluctuations in the oral environment can range from 0°C to 100°C.
Temperature fluctuations in the oral environment can range from 0°C to 100°C.
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Study Notes
Definition and Scope of Dental Materials
- Dental materials are specially fabricated materials designed for use in dentistry.
- The science of dental materials involves studying composition, properties, and environmental interactions.
Characteristics of Oral Environment
- Oral environment is characterized by:
- Wet conditions (saliva, food, and drinks)
- Temperature fluctuations (ice cream to coffee/tea)
- pH variations (neutral to acidic/alkaline)
- Masticatory forces variation
Ideal Dental Materials
- Biocompatibility and safety (nontoxic, non-irritating, non-allergic)
- Mechanically stable and durable (withstands biting and chewing forces)
- Dimensionally stable (minimally affected by temperature or solvents)
- Easy manipulation (easy use with no special equipment)
- Tasteless and odorless
- Cleanable (can be maintained)
- Resistant to corrosion or chemicals (does not deteriorate over time)
- Cost-effective (within patient's budget)
Classification of Materials Used in Dentistry
- Based on chemical composition, there are four classes of materials:
- Polymers
- Metals
- Ceramics
- Composites (mixture of two or more of the above classes)
Polymers
- Polymers are macromolecules built up by linking together smaller molecules (monomers)
- Process of linking repeating units (monomers) is termed polymerization
- Examples: polymer molecules formed from monomers through polymerization
Definition and Scope of Dental Materials
- Dental materials are specially fabricated materials designed for use in dentistry.
- The science of dental materials involves studying composition, properties, and environmental interactions.
Characteristics of Oral Environment
- Oral environment is characterized by:
- Wet conditions (saliva, food, and drinks)
- Temperature fluctuations (ice cream to coffee/tea)
- pH variations (neutral to acidic/alkaline)
- Masticatory forces variation
Ideal Dental Materials
- Biocompatibility and safety (nontoxic, non-irritating, non-allergic)
- Mechanically stable and durable (withstands biting and chewing forces)
- Dimensionally stable (minimally affected by temperature or solvents)
- Easy manipulation (easy use with no special equipment)
- Tasteless and odorless
- Cleanable (can be maintained)
- Resistant to corrosion or chemicals (does not deteriorate over time)
- Cost-effective (within patient's budget)
Classification of Materials Used in Dentistry
- Based on chemical composition, there are four classes of materials:
- Polymers
- Metals
- Ceramics
- Composites (mixture of two or more of the above classes)
Polymers
- Polymers are macromolecules built up by linking together smaller molecules (monomers)
- Process of linking repeating units (monomers) is termed polymerization
- Examples: polymer molecules formed from monomers through polymerization
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Description
This quiz covers the science of dental materials, their composition, properties, and interactions with the environment. It also explores different types of dental materials and their characteristics.
