Dental For most effective cutting and long usefulness of a tungsten carbide bur, it should be A Rotating slowly before contacting the tooth B Rotating rapidly before contacting the tooth C Placed in contact with tooth before starting D Rotating rapidly before entering in to the oral cavity 💡 Explanation For most effective cutting and long usefulness of a tungsten carbide bur, it should be ✓ Correct Answer: B. Rotating rapidly before contacting the tooth