A state of oral rest typically involves a small space between the upper and lower teeth. This separation minimizes pressure on the teeth, jaw muscles, and temporomandibular joint (TMJ). Consistent contact, even light contact, can lead to muscle fatigue and potential joint issues over time.
Maintaining this disclusion is crucial for preserving long-term dental health and function. Constant pressure can accelerate tooth wear, trigger headaches, and exacerbate conditions like bruxism. Historically, oral health practices have emphasized reducing unnecessary stress on the jaw, which inherently supports this principle of separation during resting periods.