What specifically?
Straight, white, and healthy teeth are very important for an attractive face
Ideally, your teeth would develop properly from consuming the proper diet of meat, seafood, and eggs from birth to not need orthodontic treatment, but orthodontics is a viable option to correct misaligned teeth
What will this do?
Orthodontic treatment will help your miscellaneous score improve, and is an important precursor if you plan to get orthodontic surgery
Having straight teeth with a proper class 1 skeletal occlusion is not only key for achieving an attractive face, but it is also important for your overall health.
