Local factors: occlusal interferences, high filling restorations or poor restorations, crowding of teeth, incorrect contact between upper and lower teeth. Other local factors that can cause you to clench your teeth are
a) Incorrect teeth alignment: Misaligned teeth can cause the jaw to shift and move in unnatural ways, leading to bruxism. When teeth are not aligned properly, the bite can become imbalanced, causing the muscles in the jaw to work harder to compensate for the misalignment. This extra muscle activity can lead to teeth clenching and grinding.
b) Neck alignment: Poor neck alignment can cause tension in the muscles of the neck and jaw, leading to teeth clenching or grinding. When the neck is misaligned, it can cause the muscles in the jaw to work harder to maintain balance and support the head, leading to bruxism.
c) Hip alignment: The alignment of the hips can also affect the muscles of the jaw and contribute to teeth clenching or grinding. When the hips are not aligned properly, it can cause the muscles in the jaw to work harder to maintain balance and stability, leading to bruxism.
Systemic factors: parasitic and digestive diseases like worms, malnutrition and nutritional deficiencies like magnesium, allergies, endocrine disorders, mental retardation, cerebral palsy.
Psychological factors: Personality disorders like hyperactivity and increased stress and anxiety, argument or fighting(altercations) or problems at work or home
Habits such as fidgeting due to a high sympathetic drive
Mouth breathing, noisy breathing, snoring, sleep apnea, sleep disordered breathing
Deviated septum or nasal obstructions