The habitual positioning of the jaw significantly influences oral health and facial muscle activity. Proper resting oral posture involves relaxed muscles and a slight separation between the upper and lower teeth. Consistent contact, except during chewing or speaking, may indicate a functional imbalance or parafunctional habit.
Maintaining a small space between the biting surfaces minimizes unnecessary strain on the temporomandibular joints (TMJ) and reduces the likelihood of teeth grinding (bruxism). This posture can contribute to reduced jaw pain, fewer headaches, and lessened wear on the enamel. Historically, dentists have emphasized the importance of neutral jaw positioning to prevent long-term complications related to TMJ disorders.