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What is the function of a mouthguard?

  1. Improves bite alignment

  2. Helps prevent dental injury

  3. Enhances oral hygiene

  4. Minimizes tooth decay

The correct answer is: Helps prevent dental injury

A mouthguard primarily serves as a protective device that helps prevent dental injury, particularly during activities that pose a risk of impact to the mouth, such as sports. By cushioning the teeth, gums, and jaw, mouthguards significantly reduce the likelihood of injuries such as broken teeth, jaw fractures, and damage to soft tissues. This function is essential, especially for athletes and individuals involved in contact sports. While other options touch on important aspects of oral health, they do not encompass the primary role of a mouthguard. Improving bite alignment refers to orthodontic treatments rather than protective devices. Enhancing oral hygiene is related to regular dental care routines and products designed for cleaning the mouth, while minimizing tooth decay typically involves good dental hygiene practices and dietary choices rather than the use of a mouthguard. Hence, the main purpose of a mouthguard aligns closely with the prevention of dental injuries, making it the most accurate answer.