Certified Instrument Specialist (CIS) Practice Exam 2025 – The All-in-One Guide to Achieving Certification Success!

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What instrument is primarily used to remove periosteum and soft tissue from bone during surgical procedures?

Cobb elevator

The Cobb elevator is specifically designed for the purpose of removing periosteum and soft tissue from bone. Its blade is flat and designed to lift and scrape away these tissues gently, which is critical during surgeries that require clear exposure of the bone, such as orthopedic or neurosurgical procedures. The design allows for precise manipulation, making it particularly effective for these tasks.

Other options, while they have important roles in surgical procedures, do not serve the primary function of periosteum and soft tissue removal. The Kerrison rongeur is primarily used for cutting bone and removing small chunks of tissue, whereas the Pituitary rongeur is utilized for extracting soft tissue, particularly in neurosurgery like during pituitary tumor removal. The dental implant is not a surgical instrument but rather a device used in dental procedures to replace missing teeth.

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Kerrison rongeur

Pituitary rongeur

Dental implant

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