Occlusal Disease

James Odell, OMD, ND, L.Ac.

The bite is more than a meeting of teeth—it is the meeting point of the nervous system, muscles, joints, posture, and overall health.

Occlusal disease (OD) is a degenerative condition in which an imbalance between the upper and lower teeth creates excessive or uneven biting forces. Over time, these abnormal forces can damage the teeth, gums, supporting bone, and temporomandibular joints (TMJs), contributing to enamel wear, tooth fractures, sensitivity, gum recession, chronic jaw pain, and, in some cases, tooth loss.

Many people are unaware they have occlusal disease because its symptoms often develop gradually and are easily mistaken for normal aging or everyday wear and tear. As a result, this often "silent" condition may go undiagnosed until significant damage has occurred. Left untreated, occlusal disease can progressively affect the teeth, jaw joints, muscles, and other supporting structures, making early recognition and intervention essential.

Understanding the Bite

A balanced bite is essential for healthy oral function. In an ideal bite, the teeth, jaw joints, and surrounding muscles work together in harmony to distribute chewing forces evenly. When the bite becomes unbalanced, excessive force is placed on certain teeth and joints, creating repetitive stress throughout the chewing system.

Over time, this stress may lead to symptoms involving the teeth, temporomandibular joints (TMJs), chewing muscles, or a combination of all three. Understanding how these structures interact is fundamental to recognizing and treating occlusal disease.

Weston Price and Occlusal Disease

In the past century, both developmental abnormalities of the jaws and bite irregularities resulting from trauma, tooth loss, or dental treatment have become increasingly common. Weston A. Price explored the relationship between nutrition, craniofacial development, and dental health. Through his research, he proposed that traditional nutrient-dense diets supported proper jaw development, while diets high in refined flour and sugar contributed to narrowing of the dental arches, crowding of the teeth, and altered facial growth.

Although some of Price's conclusions continue to be debated, his observations helped inspire ongoing research into the relationship between nutrition, jaw development, and oral health. Today, orthodontic treatment has become common throughout industrialized nations, reflecting the increasing prevalence of crowding and malocclusion.

Symptoms

Because occlusal disease often progresses gradually, it is important to recognize the early warning signs and seek professional evaluation if symptoms develop.

Common symptoms include:

• Jaw pain or tenderness, especially upon waking or while chewing

• Frequent headaches or earaches

• Tooth sensitivity

• Worn, flattened, chipped, or cracked teeth

• Clicking or popping of the jaw joint

• Difficulty comfortably closing the lips

• Facial muscle fatigue

• Neck tension or stiffness

Occlusion, Posture, and the Labyrinthine Righting Reflex

Chewing is one of the body's most fundamental functions, and the jaw does not operate in isolation. The teeth, jaw joints, muscles, cervical spine, eyes, and vestibular system continuously communicate through the nervous system to maintain balance, posture, and efficient movement.

One important neurological mechanism involved in this coordination is the labyrinthine righting reflex. Originating in the vestibular organs of the inner ear, this reflex helps keep the eyes level with the horizon while coordinating the position of the head and neck. Every time we move, our bodies are making subtle adjustments to preserve balance and visual stability.

Because the jaw, skull, cervical spine, and vestibular system are both mechanically and neurologically interconnected, changes in one area may influence function elsewhere. Rather than operating independently, these systems constantly adapt to one another in an effort to maintain efficient movement and minimize strain.

Although the degree to which occlusion alone influences posture continues to be investigated, many clinicians recognize that dysfunction within the chewing system can contribute to muscle imbalance, headaches, facial pain, neck tension, and altered movement patterns. This broader perspective encourages clinicians to evaluate the entire craniofacial system rather than focusing solely on the teeth.

One of the pioneers in this field is Dr. Mariano Rocabado, a Chilean physical therapist whose work helped define the cranio-cervico-mandibular system. His research demonstrated that the temporomandibular joints (TMJs), cervical spine, tongue, airway, and posture function as an integrated unit. Rocabado emphasized that successful treatment of jaw disorders often requires addressing not only the bite, but also head posture, cervical alignment, breathing patterns, and muscular function. His work continues to influence dentists, physicians, osteopaths, chiropractors, and physical therapists around the world.

Prevention

Preventing occlusal disease involves both maintaining good oral health and identifying bite problems before they become destructive.

Helpful preventive measures include:

• Maintaining excellent oral hygiene through regular brushing and flossing

• Receiving routine dental examinations

• Managing nighttime grinding or clenching when present

• Addressing missing or damaged teeth promptly

• Seeking professional evaluation if jaw pain, clicking, headaches, or tooth sensitivity develop

Cranial Osteopathy and Dental Disorders

To fully appreciate occlusal disease, it is helpful to view the mouth as part of the larger craniofacial system. The bones of the skull, facial muscles, connective tissues, cranial nerves, temporomandibular joints, cervical spine, and even the diaphragm communicate through an intricate network of structural and neurological relationships.

From an osteopathic perspective, restrictions within one part of this system may create compensations elsewhere. For example, altered movement of the temporal bones may influence the temporomandibular joints, while persistent jaw tension may contribute to muscular imbalance throughout the neck and upper back. Likewise, restrictions affecting the cranial base may alter the mechanics of swallowing, breathing, and tongue function.

Many patients with temporomandibular disorders (TMD) also exhibit dysfunction involving the cervical spine, posture, or craniofacial mechanics. While not every patient with TMD has an occlusal disorder—and not every occlusal problem causes TMD—addressing these interconnected relationships may improve overall function in carefully selected patients.

Cranial osteopathic physicians use gentle manual techniques intended to restore mobility within the cranial sutures, reduce muscular tension, and improve the body's natural capacity for self-regulation. The goal is not simply to "move bones," but to normalize mechanical strain throughout the craniofacial system so the nervous system, muscles, and joints can function more efficiently.

Although research into cranial osteopathy continues to evolve, growing appreciation for the body's interconnected biomechanics has encouraged greater collaboration among dentists, osteopathic physicians, physical therapists, and other healthcare professionals. This whole-person perspective is central to bioregulatory medicine, where restoring healthy function takes precedence over simply managing symptoms.

Occlusal Disease and Temporomandibular Disorders

Occlusal disease and temporomandibular disorders (TMD) are closely related but are not synonymous. An abnormal bite may contribute to jaw pain in some individuals, but TMD is considered a multifactorial condition that can also involve muscle dysfunction, stress, trauma, connective tissue disorders, arthritis, sleep-related bruxism, and other contributing factors.

Because multiple factors may be involved, a comprehensive evaluation is often necessary to determine the primary source of a patient's symptoms and develop an individualized treatment plan.

Common Treatment Approaches

Before recommending permanent treatment, many dentists perform a comprehensive bite analysis using articulating paper (the colored film patients bite on) and, in some cases, computerized technologies such as a T-Scan®, which measures bite force distribution. Diagnostic models or wax-ups may also be created to visualize the proposed bite before treatment begins.

Occlusal Equilibration (Bite Adjustment)

For minor bite discrepancies, a dentist may carefully reshape selected biting surfaces using a fine diamond instrument. Only fractions of a millimeter are removed to eliminate premature contacts or "high spots." The procedure is typically painless, and local anesthesia is often unnecessary. Treatment usually requires one or two appointments.

Restorative Dentistry

When worn, damaged, or poorly fitting restorations contribute to bite imbalance, fillings, onlays, or crowns may be adjusted or replaced. Severely worn teeth can often be rebuilt with composite resin or porcelain to restore proper function and vertical dimension.

Orthodontics

If crooked, crowded, or improperly positioned teeth are the primary cause of the imbalance, orthodontic treatment using braces or clear aligners may be recommended. Although treatment typically requires 12 to 24 months, it addresses the underlying tooth position while preserving healthy enamel.

Orthotic Therapy

Before making significant permanent changes to the bite, many dentists first recommend a temporary occlusal splint or orthotic appliance. Worn for several weeks, this appliance allows the jaw muscles and joints to adapt to the proposed bite position before irreversible dental treatment is performed.

Only after the temporary position proves comfortable and stable will permanent treatment generally be considered.

Choosing the Right Dentist

Because permanent changes to the bite cannot easily be reversed, patients should feel comfortable asking questions about the diagnostic process and proposed treatment plan. When extensive bite adjustments are recommended, many dentists utilize temporary orthotic appliances or other diagnostic methods to confirm the new bite position before making irreversible changes to the teeth.

Seeking a second opinion is entirely appropriate whenever significant occlusal treatment is proposed, particularly if permanent enamel reduction or extensive restorative work is involved.

References:

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