Crooked teeth
Misaligned or mispositioned teeth in addition to having an impact on the appearance or personality of the person can lead to difficulty in cleaning, which indirectly can lead to gum disease. This can also lead to decay of tooth/ teeth.
Misaligned teeth can lead to inefficient chewing capacity, which can lead to digestion problems. Moreover compensatory mechanisms can impart traumatic forces on the TMJ leading to TMJ problems.
This can also lead to speech issues.
Crooked teeth at times are at higher risk of sustaining trauma and can also lead to mouth breathing.