The Occlusion Circle

This article, a transcript of an occlusion panel discussion from the 2003 International Congress on Bioesthetic Dentistry, brings together leading clinicians to discuss evolving perspectives on occlusion, centric relation, and restorative protocols. Featuring insights from Drs. Lee, Hunt, Wirthlin, O’Rourke, and others, the conversation explores both philosophical and practical questions surrounding how best to restore function, comfort, and esthetics through joint-centered dentistry. The dialogue reflects both clinical experience and scientific reasoning behind Bioesthetic Dentistry’s approach to occlusal harmony.

Defining Occlusion: Beyond the Bite

The panel begins by challenging traditional definitions of occlusion. Rather than focusing purely on tooth contact or static relationships, the discussion reorients occlusion as a dynamic relationship between the teeth, temporomandibular joints, and neuromuscular system. The panelists agree that functional occlusion must support not only esthetics and mastication, but also joint health and long-term stability.

This systems-based view places centric relation (CR)—a reproducible, orthopedically sound joint position—at the heart of treatment planning. From CR, clinicians can design occlusions that eliminate interferences, support muscles, and distribute forces along biologically ideal pathways.

Centric Relation and the MAGO Splint

Several panelists emphasized the importance of splint therapy, particularly the use of a MAGO (maxillary anterior guided orthotic), in identifying and verifying a patient’s true CR. By deprogramming muscles and allowing the condyles to seat without occlusal interference, the MAGO provides a reliable diagnostic platform. Dr. Hunt and others note that many patients experience symptom relief—including jaw pain, tension headaches, and clicking—just from wearing the splint.

CR allows mounted models to reflect the true functional relationship between upper and lower arches. Panelists stressed that accurate model mounting in CR is essential for diagnosing discrepancies, designing wax-ups, and developing treatment strategies that restore both form and function.

Restoration and Vertical Dimension

One topic of debate was when—and how—to restore lost vertical dimension of occlusion (VDO). Panelists agreed that restoring VDO should not be undertaken lightly. It must be driven by functional necessity (e.g., collapsed dentition or facial disharmony) and only after the system has been stabilized.

Dr. Lee pointed out that once joint and muscle stability are achieved through MAGO therapy and confirmed through provisional restorations, clinicians can proceed with confidence. Adjustments to VDO are best made additively, using minimally invasive techniques that preserve existing structure and maintain restorative control.

Esthetics as an Outcome of Function

The panel also addressed esthetic design in occlusion. Rather than treating esthetics and function as separate goals, the clinicians emphasized that esthetic success naturally follows when biologic form is restored. For instance, anterior guidance contributes not only to the disclusion of posterior teeth, but also to proper incisal display and lip support.

Technicians and dentists alike must design restorations that reflect nature’s architecture. This includes tooth proportions, line angles, and surface texture, all of which are informed by biologic norms. The discussion affirms that biologic esthetics is more than appearance—it’s function made visible.

The Role of Technicians and Teamwork

A recurring theme throughout the discussion is the essential role of dental technicians. Panelists agree that lab technicians must be involved early in treatment planning and must understand the biologic and functional goals of each case. The wax-up is not simply a mock-up—it’s a diagnostic and design tool that guides the entire rehabilitation process.

Technicians who understand joint-based occlusion, CR, and the nuances of anterior guidance are better able to produce restorations that perform predictably and look natural. Interdisciplinary communication between clinician and lab is key to achieving system-based outcomes.

Key Clinical Takeaways

• Occlusion must be viewed as a system involving joints, muscles, and teeth—not just static tooth contact.
• Centric relation (CR) is a reliable, repeatable joint position that serves as the foundation for diagnosis and treatment planning.
• MAGO splint therapy is essential for deprogramming muscles and identifying the true CR in symptomatic patients.
• Vertical dimension changes should be made cautiously, based on function and biologic norms, not esthetic preferences alone.
• Esthetics naturally follow biologic form—restoring guidance, function, and tooth anatomy produces harmonious smiles.
• Technicians are essential partners in biologic dentistry, helping ensure that restorations match both function and form.

This panel discussion captures the essence of Bioesthetic Dentistry: that health, comfort, and beauty arise from honoring nature’s design. By prioritizing joint stability, functional anatomy, and interdisciplinary teamwork, clinicians can deliver restorations that support the whole system—not just the smile.

Read the full article here.