13/10/2025
⸻
🧠 How Mental Illness Affects Dental Health
1. Depression and Anxiety
• People may neglect oral hygiene (forgetting to brush/floss).
• Decreased motivation and fatigue can lead to missed dental appointments.
• Antidepressants and anxiolytics often cause dry mouth (xerostomia), increasing the risk of decay and gum disease.
• Bruxism (tooth grinding) can be related to anxiety or certain medications.
2. Eating Disorders (e.g., Bulimia Nervosa)
• Frequent vomiting leads to acid erosion of enamel, especially on the back of teeth.
• Malnutrition affects gum and bone health.
3. Severe Mental Illness (e.g., Schizophrenia, Bipolar Disorder)
• Difficulty maintaining consistent oral hygiene routines.
• Side effects of psychotropic medications cause dry mouth and dental caries.
• Some patients develop oral self-injury or tardive dyskinesia (jaw/tongue movements).
4. Substance Use Disorders
• Drugs like methamphetamine, co***ne, or alcohol cause major dental damage (“meth mouth”), dehydration, and poor nutrition.
⸻
😬 How Dental Problems Affect Mental Health
• Appearance concerns: Missing, discoloured, or damaged teeth can cause embarrassment, social withdrawal, and low self-esteem.
• Chronic pain: Ongoing dental pain can worsen depression, anxiety, and sleep problems.
• Trauma triggers: Dental procedures can trigger anxiety or PTSD, especially if someone has a history of trauma or abuse.
⸻
🦷 The Role of Dentists in Mental Health Support
Dentists can play an important role by:
• Screening for signs of mental illness (neglected oral care, flat affect, medication side effects).
• Creating trauma-informed and anxiety-sensitive care environments.
• Coordinating care with psychologists, psychiatrists, or occupational therapists.
• Using gentle communication and desensitisation strategies for dental anxiety.
• Encouraging regular care even when mental health fluctuates.
