Final answer:
No, you cannot use yarn or gauze as a substitute for dental floss.
Step-by-step explanation:
No, you cannot use yarn or gauze as a substitute for dental floss. Dental floss is specifically designed to remove plaque and food particles from between your teeth and along the gum line. Yarn or gauze may not have the same effectiveness in cleaning these hard-to-reach areas, and they may also cause irritation or injury to your gums.
Instead, it is recommended to use dental floss or another interdental cleaning tool, such as interdental brushes or water flossers, which are specifically designed for oral hygiene purposes.