Question 1

Which type of restoration is recommended for an edentulous patient?

Accepted Answer

A complete denture is the recommended option for an edentulous patient, as it replaces all missing teeth in the upper or lower arch. Fixed partial dentures and resin-bonded bridges require remaining natural teeth to support them, and removable partial dentures are designed to replace only some missing teeth, not a full arch.

Question 2

Which of the following would not be considered an extracoronal, or indirect placement, restoration?

Accepted Answer

Amalgam is a direct placement restoration, meaning it is placed directly onto the tooth and shaped while still soft. Veneers, crowns and onlays are examples of indirect restorations, where a mold or impression is taken of the tooth and the final restoration is made in a dental laboratory before being cemented onto the tooth.

Question 3

Which tooth surface is most susceptible to caries in older adults?

Accepted Answer

Exposed root surfaces of all teeth are most susceptible to caries in older adults due to root exposure from gingival recession, periodontal disease, and age-related changes in saliva. Pits and fissures of the occlusal surface are typically more susceptible to caries in children and young adults, while cervical smooth surfaces can be susceptible due to poor oral hygiene and dietary habits. Interproximal areas can also be susceptible if there is poor contact between teeth or insufficient interdental cleaning.

Question 4

Fluoride gels, rinses, and varnishes are highly effective at treating which dental condition?

Accepted Answer

Fluoride gels, rinses, and varnishes are highly effective at treating dental caries (tooth decay). They help to remineralize and strengthen the tooth enamel, making it more resistant to acid erosion and the formation of cavities.

Question 5

Describe the purpose of mouth protectors.

Accepted Answer

The answer of Describe the purpose of mouth protectors....

Question 6

Endosseous dental implants rely on which method to retain them permanently?

Accepted Answer

The answer of Endosseous dental implants rely on which method...

Question 7

What is a significant cause of dental caries and periodontal disease in older adults?

Accepted Answer

Reduced salivary flow in older adults can lead to dry mouth, which increases the risk of dental caries and periodontal disease due to decreased natural cleansing and protective functions of saliva.

Question 8

The phrase fixed bridge is a common term to describe which type of restoration?

Accepted Answer

A fixed bridge is a restoration that replaces missing teeth by permanently attaching artificial teeth to adjacent natural teeth or implants. This is typically done using a fixed partial denture, also known as a dental bridge. Options A, C, and D are not considered fixed bridges.

Question 9

Which areas of the teeth are most susceptible to caries?

Accepted Answer

Interproximal surfaces (between teeth) and occlusal surfaces (chewing surfaces) are the most susceptible to caries formation due to their anatomical shape and difficulty in cleaning. Lingual surfaces (tongue-facing side) are also susceptible to caries, but to a lesser extent than interproximal and occlusal surfaces. Therefore, options A, B, and D are incorrect, while option E (only A and B are correct) is the best choice.

Question 10

How would a permanent three-unit bridge be classified?

Accepted Answer

A permanent three-unit bridge is an example of an indirect restoration because it is fabricated outside of the mouth. It is also considered extracoronal as it covers the external surface of the tooth or teeth.

Question 11

What is the purpose of mouth protectors?

Accepted Answer

Mouth protectors are primarily used to protect the teeth and jaw from injury during sports or physical activity.

Question 12

Of the following, which is not an advantage of finishing and polishing a restoration?

Accepted Answer

The answer of Of the following, which is not an...

Question 13

Identify an advantage to a patient who wears a partial denture.

Accepted Answer

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Question 14

Which of the following tissues is most likely to be affected by periodontal disease caused by bacterial plaque?

Accepted Answer

Periodontal disease affects the periodontal ligament, which is the tissue that supports the teeth and attaches them to the jawbone. Bacterial plaque buildup can lead to inflammation and damage to the ligament, causing gum recession, bone loss, and even tooth loss if left untreated. Enamel, dentin, and pulp are all components of the tooth structure and are not typically affected by periodontal disease.

Question 15

How would a composite resin restoration be classified?

Accepted Answer

Composite resin restorations can be applied directly into the cavity and are used to fill intracoronal spaces, making both A (Direct restoration) and C (Intracoronal restoration) correct.

Question 16

Acid etching is used to bond pit and fissure sealant material to which tooth tissue?

Accepted Answer

Acid etching is used to create micro-retentive surface irregularities on enamel to enhance the bonding of pit and fissure sealant material. It is not used on dentin or cementum, as it may damage these tissues. Dental pulp is not a suitable tissue for sealant application.

Question 17

Fluoride ________ are commonly used to deliver fluoride to an area prepared for restoration.

Accepted Answer

Fluoride varnishes are commonly used to deliver fluoride to an area prepared for restoration. These varnishes contain a high concentration of fluoride and are applied directly to the teeth, providing a longer-lasting effect compared to other forms of fluoride application such as rinses or gels. Filling materials are used for restorations and do not typically contain fluoride.

Question 18

Discuss the role of dental materials in treating trauma-related tooth injuries.

Accepted Answer

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Question 19

Of the following, which material would not be used for an intracoronal restoration?

Accepted Answer

Porcelain is not typically used for intracoronal restorations, as it is more commonly used for full coverage restorations such as dental crowns. Amalgam and composite resin are both commonly used for intracoronal restorations.

Question 20

Compare and contrast intracoronal restorations with extracoronal restorations.

Accepted Answer

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Quiz 1: Introduction to Restorative Dental Materials