Example of a Clinical Case of Myofunctional Therapy with MyoSimple
Example of a Myofunctional Therapy Case Assisted by MyoSimple
Numerous clinical cases have been published.
They can be categorized according to the seven main indications for treatment with MyoSimple.
The 7 Main Indications for MyoSimple®
• Early interception
• Combined therapy (MyoSimple + Froggymouth)
• Reorientation of muscular pressures
• Post-orthopedic phase management
• Treatment of Orofacial Functional Disorders (OFDs)
• Before multibracket or aligner treatment
• During retention phase
Example of Early Interception
A 10-year-and-4-month-old girl was under observation while awaiting the progression of her permanent dentition.
Leeway space was maintained by a mandibular lingual arch. The persistence of the primary canines, which the patient refused to have extracted, interfered with the eruption of the maxillary canines.
First, tooth 23 (Fig. 1), then tooth 13 (Fig. 2), erupted in a crossbite position.
How can the palatal ectopia of teeth 13 and 23 be corrected? One option would be to use a quad-helix or bond brackets on the maxillary incisors and canines. A simpler approach was chosen: to reorient the muscular pressures and eliminate the occlusal lock by having the patient wear a MyoSimple appliance during sleep and for one hour during the day.
The MyoSimple allows the tongue to apply direct pressure on the palatal surfaces of the maxillary teeth — including the canines that had erupted in palatal ectopia.
The combination of three factors — adequate space in the arch, removal of the occlusal lock, and direct lingual pressure on the canines — enables the correction of the inverted canine occlusion.
At the time of fitting the MyoSimple, only tooth 23 had erupted in palatal ectopia (Fig. 1).
After 3 months of MyoSimple use, the ectopia of tooth 23 was corrected; however, since the patient continued to refuse extraction of tooth 53, tooth 13 then erupted in palatal ectopia (Fig. 2–3).
After 5 months, tooth 53 was finally exfoliated, and the correction of the crossbite (Fig. 3) with the MyoSimple was no longer hindered by the persistence of tooth 53 in the arch.
After 7 months, the crossbite of tooth 13 was also corrected (Fig. 4). The patient and her family were satisfied with the outcome and did not wish to proceed with a second phase of treatment involving a full fixed appliance.
Key Takeaway
Wearing a MyoSimple appliance in combination with myofunctional therapy is a straightforward therapeutic approach that acts simultaneously on both the anatomical and functional environment.
It allows the correction of an inverted occlusion of maxillary canines within three months of nighttime and one-to-two hours of daytime wear. This therapeutic strategy is well accepted by young patients and provides significant and stable results with minimal intervention.