The exact cause of bruxism is unknown, but it is believed to be related to:
- Stress and anxiety
- Abnormal alignment of the teeth or jaws
A risk factor is something that increases your chances of getting a disease or condition.
Risk factors include:
- Chronic stress or anxiety
- Aggressive or competitive personality
- Abuse of drugs or alcohol —especially methamphetamines
- Post-traumatic stress disorder
- Age: 40 or younger; especially common in women aged 27-40
- Family member with bruxism
- Facial or oral trauma
- Use of psychiatric medications, especially antidepressants such as Zoloft, Paxil, and Prozac
- Prior serious head injury
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