Cutting a paraffin block too quickly can result in chatter on the section.

• A. True
• B. False
• C. Not Enough Information
• D. Only With Dull Blade

Answer: (A)

Chatter marks occur when the blade and tissue fail to glide together smoothly, so the section forms under vibration rather than a clean shear. If you cut too quickly, the blade’s advance can outrun the tissue’s ability to shear cleanly, generating tiny vibrations and tearing that are imprinted as irregular ridges on the section. A controlled, steady cutting speed helps the tissue re-form a smooth surface at the knife edge, while a too-rapid motion increases friction and instability. A sharp blade is essential, but speed alone can cause chatter even with a good blade, so moderation in cutting speed is key to a clean section.