What is the purpose of orthodontic appliances?

• A. To whiten the teeth
• B. To correct misalignment of teeth and jaws
• C. To clean the teeth
• D. To relieve tooth sensitivity

Answer: (B)

The purpose of orthodontic appliances is to correct misalignment of teeth and jaws. These appliances, which include braces, aligners, and other devices, are designed to reposition teeth into their proper alignment, which can improve both functional and aesthetic aspects of a person's smile. Proper alignment is essential not only for appearance but also for effective chewing, speaking, and maintaining overall oral health. Misaligned teeth can lead to issues such as uneven wear, jaw pain, and difficulty in cleaning, which might cause additional dental problems.

The other options highlight different dental procedures that do not pertain to the specific function of orthodontic appliances. Whitening teeth involves cosmetic treatments, cleaning refers to maintaining oral hygiene, and relief from tooth sensitivity typically involves treatments aimed at the nerves or enamel of the teeth. None of these options addresses the primary goal of orthodontic treatment, which is the correction of structural issues in the dental alignment.