Which statement is listed as an indication for a wrought wire combination clasp?

Which statement is listed as an indication for a wrought wire combination clasp?

• A. On anterior teeth and premolars
• B. Substitute I-bar of RPI
• C. Distal extension
• D. More esthetic than CC

Answer: (B)

Wrought wire combination clasps are used when you need flexible, conservative retention on an abutment tooth and can’t place a conventional rigid retentive arm. In the RPI design, the I-bar provides the direct retention by engaging the tooth’s undercut. When placing a standard I-bar isn’t feasible—because of tooth morphology, limited access, or desire for less tooth structure removal—a wrought wire combination clasp can substitute for that I-bar. This makes it a specific and practical indication: using a wrought wire clasp to take the place of the I-bar in RPI. The other statements don’t pinpoint this exact functional use, even though they may touch on esthetics or tooth location, they don’t describe the retained purpose of replacing the I-bar.

Wrought wire combination clasps are used when you need flexible, conservative retention on an abutment tooth and can’t place a conventional rigid retentive arm. In the RPI design, the I-bar provides the direct retention by engaging the tooth’s undercut. When placing a standard I-bar isn’t feasible—because of tooth morphology, limited access, or desire for less tooth structure removal—a wrought wire combination clasp can substitute for that I-bar. This makes it a specific and practical indication: using a wrought wire clasp to take the place of the I-bar in RPI. The other statements don’t pinpoint this exact functional use, even though they may touch on esthetics or tooth location, they don’t describe the retained purpose of replacing the I-bar.