Effect of Preorthodontic Trainer in Mixed Dentition
Figure 6
Tooth guidance: molded into the anterior section (similar to orthodontic archwire). 1—tooth channels. 2—labial bows (impart a light force on misaligned anterior teeth). Myofunctional training: 3—tongue tag (for the proprioceptive positioning of the tongue tip as in myofunctional and speech therapies). 4—tongue guard (stops tongue thrusting when being in place and forces child to breathe through the nose). 5—Lip bumpers (discourage overactive mentalis muscle activity). Jaw positioning: 6—edge-to-edge class I jaw position (is produced when in place (same as most functional appliances). Combined with prevention of tongue thrusting and forcing the child to nose breathe is how the class II corrections are achieved in the cases shown (a big assistance to the orthodontist in future treatment)).
