- Provides greater stability for crowding and rotation corrections:
- naturally enlarges arches (4 mm. mean in the lower, 5 mm. in the upper).
- allows collagenous fiber development only after the incisors have erupted straight.
- can utilize the leeway space for additional arch size, if necessary, before fiber development.
- can obtain up to 7.0 mm. of additional arch length.
- Provides greater stability of overbite and overjet:
- corrects excessive overjet before full adult incisor eruption and prevents excessive overbite development.
- provides proper upper and lower interincisal contact which prevents supereruption into excessive overbite.
- obtain adequate vertical and horizontal jaw growth in moderate and severe cases.
- eliminates the need for depression of incisors and/or eruption of posteriors at later stage of orthodontics.
- normal overbite and overjet established prior to fiber formation.
- Prevents TMJ problems from developing:
- prevents deep overbites by limiting incisal overeruption.
- obtain early advancement of the mandible and correct excessive overjets.
- eliminates restriction of free forward movement of mandible during growth, which can cause posterior directed condyler growth and displacement.
- discourages bruxism by creating more lateral occlusal excursion.
- prevents the development of crossbites.
- Converts difficult orthodontic problems of excessive crowding, overbite, overjet and Class II to easy Class I cases:
- what remains are Class I touch-ups which might involve torque, axial incisal uprighting, minor rotations, and some overbite corrections.
- eliminates up to 50% of extraction cases.
- can reduce or eliminate gummy smiles.
- prevents the development of excessive maxillary lingual crown torque.
- creates normal occlusal planes with no vertical variation by controlling eruption of upper and lower posteriors.
- Obtains a natural appearance of teeth and smile:
- allows face to naturally grow around and adapt to the occlusion.
- obtains optimum vertical and lateral position of incisors within smile.
- bilaterally coordinates and levels the occlusal planes.
- controls the eruption of the upper and lower incisors to be level vertically with both posterior occlusal planes.
- Aids in function and health of teeth:
- elimination of overbite, overjet, and crowding which aid in mastication, digestion and speech.
- reduces risk of TMJ problems.
- increases gingival health and support of incisors.
- reduces risk of root resoprtion.
- reduces risk of caries from early elimination of crowding.
- reduces risk of adverse swallowing and speech patterns.
- reduces risk of looseness and loss of mandibular incisors.
- can use in combination with fluoride to resist caries. reduces risk of upper incisal trauma due to the early elimination of the overjet.
