Direct retainer CPD

Which of the following is a common direct retainer?

• A. Clasp
• B. Connector
• C. Rest
• D. Major
• E. Minor

Which type of clasp engages the undercut area of a tooth?

• A. Circumferential
• B. I-Bar
• C. T-Clasp
• D. Combination
• E. Ring

The retentive arm of a clasp should contact the tooth at what angle?

• A. 10 degrees
• B. 20 degrees
• C. 30 degrees
• D. 40 degrees
• E. 50 degrees

What is the function of a direct retainer in a cast partial denture?

• A. To provide support
• B. To connect the denture base to the natural teeth
• C. To stabilize the denture
• D. To retain the denture in place
• E. To help with chewing

Which of the following factors can affect the retention of a direct retainer?

• A. The design of the clasp
• B. The material of the denture base
• C. The number of abutment teeth
• D. The length of the retentive arm
• E. All of the above

Which type of clasp is commonly used for anterior teeth?

• A. Circumferential
• B. I-Bar
• C. T-Clasp
• D. Combination
• E. Ring

What is the purpose of the minor connector in a cast partial denture?

• A. To connect the major connector to the denture base
• B. To connect the direct retainer to the denture base
• C. To connect the indirect retainer to the denture base
• D. To connect the denture base to the occlusal rests
• E. To connect the denture base to the natural teeth

Which of the following is an example of a circumferential clasp?

• A. T-Clasp
• B. I-Bar
• C. Reverse-T Clasp
• D. Combination Clasp
• E. Ring Clasp

How does a rest contribute to the stability of a cast partial denture?

• A. By distributing the occlusal forces evenly
• B. By preventing the denture from rotating
• C. By preventing the denture from lifting
• D. By providing support for the abutment teeth
• E. By retaining the denture in place

Which of the following factors can affect the esthetics of a cast partial denture?

• A. The material of the denture base
• B. The design of the clasp
• C. The position of the clasps
• D. The color of the artificial teeth
• E. All of the above