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The term Mandibular Postural Orthotic (OMPr), commonly referred to as BITE, refers to a plate, usually made of resin, that is placed between

the dental arches to modify their fit without permanently changing the teeth and their arrangement.

It acts on the neuromuscular function and the temporomandibular joint (TMJ).

The main purpose is to give the jaw a spatial position that balances the tensions on the masticatory muscles and the TMJ, thus eliminating

the existing cranial and skeletal asymmetries.

It is built on the lower jaw to avoid interference with the tongue, but to guide it into the correct position during swallowing and at rest.

Patients who require mandibular repositioning orthodontics present with an alligator dysfunction syndrome affecting the temporomandibular joints at different stages of development.


The postural orthosis is a stabilising and, above all, repositioning splint worn on the lower arch.

It is preferably made of transparent acrylic resin, which is advantageous because of its minimal visual impact, its lightness, the possibility of cold modifications with additions or subtractions during check-ups, and its durability with good home maintenance.

It is fitted on the lower arch to avoid interference with the tongue, or rather to guide it in the correct position during swallowing and at rest; it is not fitted on the upper arch, as this would only relieve the internal pterygoid muscle by increasing the vertical dimension, but would block cranial and cranio-sacral breathing.

While wearing the splint, one must not clench on it: the posterior teeth come into contact with the correct position of the tongue on the palate in preparation for the act of swallowing (which occurs 1500 to 2000 times a day).

This contact stabilises the hyoid bone, which in turn stabilises the posterior supra- and subhyoid muscles and the cervical muscles.

At rest - between swallows - the teeth should not touch the plaque, but only brush against it as required by a balanced postural system.

Patients who require orthotic mandibular repositioning therapy present with a temporomandibular joint dysfunction syndrome at various stages of development.


To understand the function of the temporomandibular joint, it is necessary to have a working knowledge of the local anatomy, the neurology of the masticatory hyoid muscles, and the adjacent systems such as the primary cranial respiratory mechanism, in addition to the closed kinematic chain of cervical muscles that completes the stomatognathic apparatus in the broadest sense.

The functioning of this apparatus is clearly integrated with that of the rest of the body. Therefore, in simple terms, we could say that muscular problems that manifest themselves as headaches, dizziness, cervicalgia, lumbago, etc., can affect the temporomandibular joint or originate

from a pathology here.

The orthosis stops the degeneration of the mandibular condyle (due to a retruded or unphysiological position of the mandible) by allowing the formation of a protective fibrocartilage on it; the therapeutic position allows the condyle to move away from the retruded position of compression.

Mandibular repositioning therapy lasts an average of 3 months, during which time the brace should be worn as much as possible during

the day and if possible at night, and should only be removed during meals. This is followed by at least another 2 months of stabilising the jaw position by gradually removing the brace for a limited number of hours. This mandibular position is the result of a motor reprogramming induced by the postural tonic system and new cerebral engrams that determine the re-harmonisation of both local and general muscle tone.

The orthosis should be checked periodically after gradual postural changes, according to a protocol and a personalised postural re-education programme.

The complexity of our postural system requires the utmost precision and professionalism, which is why electromyographic, baropodometric and spinometric tests are very useful. Before starting treatment, it is necessary to ensure that the patient's oral hygiene is good, that any carious lesions and periodontal problems have been treated, and that any removable dentures are sufficiently stable.

  • Clean in the evening by brushing with dry bicarbonate of soda. 

  • If a white patina appears, soak in colourless vinegar for 2/3 minutes and then brush with dry bicarbonate of soda;

  • If pigmentation appears, soak in Amuchina for 2/3 minutes;

  • Always store in the protective box wrapped in gauze.

  • Do not put it in the dishwasher. 

  • Do not boil;

We recommend taking the OMP® out 20 minutes before eating.

Please note: cats and dogs love to play and chew with orthotics.


Surface electromyography, or synchromyographic examination, measures the activity of the following muscles: anterior temporalis, masseter and sternocleidomastoid.

We use the BTSTMJoint system, which records the electrical signal from the muscle contraction, processes it using special software (DentalContact), and analyses it to provide information on how dental contact or devices placed in the mouth affect muscle activity and stability.


The test is non-invasive and fast.

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