Clinical Cases Bite-Splints

Bite-splints devices, commonly called relaxation or protection splints, are transparent acrylic plates that fit on the top of your teeth. These are fabricated to obtain a stable bite and an adapted fit, allowing you to achieve two essential objectives: protecting your teeth from wear and promoting muscle relaxation.


Indications for making protective and relaxing devices are:

  • tooth wear
  • habit of grinding your teeth (often unconscious)
  • muscle pain in the jaws
  • pain in the joint near the ear
  • difficulty or blockage when opening or closing your mouth
  • feeling of "sand" in the joint

These devices must be fabricated using rigid acrylic and created with personalized and adjustment guides, which are nothing more than specific inclinations, adapted to each patient's dental/joint movements. Only then is it possible to obtain the desired effect. The use of soft consistency materials and flat planes, without personalized adaptation is contraindicated. In many cases, it can mitigate the symptoms or create significant problems in terms of muscle and temporomandibular joint (TMJ).

At the António Carracho Institute, we have 3D movement technologies that allow us to capture each patient's joint's movement and easily design the relaxation device for their case. Our laboratory produces these devices with CAD-CAM technology, obtaining bite-splints with the best adaptation and comfort results.

At the Institute, we have Dentists who are specialized in this area of treatment -Prosthodontists. The Prosthodontist will create a personalized treatment plan to relieve your discomfort and improve your oral health.

Step by Step

  1. Diagnosis: a clinical examination is carried out to evaluate your occlusion (fitting of your teeth), the muscles of mastication, face and neck, and the TMJ (joint). When indicated, additional diagnostic tests are performed, such as 3D CBCT or MRI.
  2. Scans or Impressions: records of your upper and lower dental arch, as well as a record of your bite and jaw movements, are performed with the aid of a digital scanner.
  3. Bite-Splint: the device is tried and adjusted. At the end of the appointment, all the recommendations for use are given by the Prosthodontist.
  4. Follow up: 7 to 14 days after, a consultation is carried out to evaluate the patient and make minor adjustments that may be necessary.

The maintenance of this type of appliance requires adjustments and control appointments to check the dental contacts and sliding movements, maintaining the appliance's therapeutic efficiency and the obtained occlusal stability.

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