Prelim results include:
- Women's risk for TMJD increased between 18-44 years old. Men did not show an age correlation with risk.
- Socio-economic status is not correlated with chronic TMJD, which is in contrast to correlation with other chronic pain, sciatica, and ulcers.
- Chronic TMJD sufferers are generally more sensitive to pain stimuli, which may be associated with the nervous system.
- Genes known to influence stress response, psychological well-being and inflammation were shown to connect with chronic TMJD.
- Chronic TMJD patients have other chronic pain conditions like lower back pain, headaches and fibromyalgia.
- Grinding and clenching were associated with TMJD, and will be the subject of further study.