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Prof. Sandhaus

Professor Sami Sandhaus

Associated Professor of the Stomatology Institute,

Pierre and Marie Curie University, Paris Ⅵ

Member of the French Academy for Dental Surgery

Member of the Center for Restorative Dentistry (USA)

Member of honour of the Academy of Romanian Scientists

Forum Odontologicum

Avenue de Provence 4

Course Ⅵ – Non-invasive Orthognathy in the treatment of the TMJ pathologies


  1. Revise the anatomical relationships: understanding the physiology of the masticatory system.
  2. Increase the capacity of identification of the destructive effects of the occlusal relationships which can be adapted to the different occlusion interfaces.

What is Orthognathy?

A method whose purpose is the prevention and treatment of any common manifestation coming from the TMJ complex, leading to postural disorders. It has been proved indeed that some TMJ dysfunctions can harm the whole body postural system.

Orthognathy is a system based on the knowledge of the TMJ in relation with the atlas-postural system.

The occlusal physiological reaction is a basic component in the long-term stability of the masticatory system. The dynamic nature of this complex system requires a detailed evaluation of the occlusal relations, as they are related to the development and to the maintenance of signs and symptoms. There is a causal relation between the mechanical stress, such as bruxism, and the TMJ. The forces generated by the masticatory system at the occlusal interfaces are dissipated among other surfaces such as the osseous and ligamentous tissues, which support the structures, the musculature and the temporomandibular complexes. The treatment of these maladaptive forces shall be addressed as well.

The treatment is non-invasive, conservatory, and does not require any surgical intervention. This type of therapy can prove to be really helpful. Indeed, the therapy of postural disorders can be conducted in collaboration with the posturologist (osteopath, kinesitherapist, physiotherapist, …)

No practitioner, devoting their time to rehabilitation, concerned with giving their patients the best service, can afford to ignore the remarkable possibilities offered by the technique proposed in this course. No one so far has been able to associate the TMJ dysfunction (masticatory physiology) with the atlas-dorsal system. The fights of the gnathology schools are obsolete as non-invasive orthognathy revolutionizes by its logic and simplicity all therapies proposed up to now.

Before moving on to the functional reconstruction of the orthognatic system of patients presenting TMJ disorders, the identification of other elements which could be affected in these anomalies is essential. Indeed, it has turned out that a lot of patients with disturbed articulations present a series of pathologies going beyond the TMJ complex.

The method developed in order to diagnose and treat this type of pathology will be presented in detail. Particular emphasis will be put both on the analysis and on the reproduction of the muscular complex affected by erroneous techniques, and on the correction of the occlusal system in the context of the cranial-mandibular-vertebral relationships.

A cure will be suggested for the physiological repositioning, taking into consideration not only dental occlusion, but also the rest of the enumerated complex

New aspects of Orthognathy

  • Identification of pathological factors
  • Physiological simulation of the oro-muscular complex
  • Recording by means of a tri-dimensional system
  • Suggested therapies
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