Multiple clinical and biomechanical studies support the conclusion that body posture, head position, and spinal alignment are interconnected with jaw position and occlusal characteristics.
The retrieved papers consistently report correlations and positional changes linking body posture (cervical spine, head position, trunk, or lower limb alignment) with jaw position, mandibular deviation, and occlusal parameters. There are no papers refuting the claim. Therefore, the balance of evidence clearly supports the statement.