Which type of dental dam frame is specifically described as having little projections?

Prepare for the Oregon Expanded Function Dental Assistant Exam. Utilize flashcards and multiple choice questions with hints and explanations. Ensure you're ready for your certification!

The type of dental dam frame that is specifically described as having little projections is the stainless steel u-shaped frame. This frame is designed to help securely hold the dental dam in place during procedures, and the little projections offer extra stability by allowing the dam to grip better, reducing the likelihood of it moving during treatment.

The plastic u-shaped frame, while also useful in positioning the dental dam, does not feature these little projections, and tends to be smoother to avoid any potential irritation to the patient's gums. The 5x5 and 6x6 dental dam frames are measurements of the dam itself rather than the features of the frame. Thus, they do not reference the frame's design, which is key to understanding why the stainless steel version is the correct choice in this context.

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