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The aim of this randomized controlled trail is to compare the efficacy of an intraoral device (the Carriere® Motion 3D™ Class III Appliance) with the facial mask for the early treatemnt of Class III malocclusion. This is a monocentric, parallel, controlled trial with blinded examiner.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Carriere Motion 3D Class III Appliance | Experimental |
| |
| Facial mask | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Carriere Motion 3D Class III Appliance | Device | The device made of stainless steel consists of a flexible bar with two pads at the end which are bonded bilaterally with composite resin to the lower second deciduous molar or the lower first permanent molar at the rear and the lower deciduous canine at the front. The base on the lower deciduous canine has a hook to which bilaterally elastic latex bands are connected with the vestibular tubes of the cemented bands on the upper deciduous second molars (Force 2 elastics ) or on the first permanent upper molars (Force 1 elastics), on whose palatine surface the a rapid maxillary expander is welded. |
| Measure | Description | Time Frame |
|---|---|---|
| Wits appraisal | Distance between the perpendiculars from points A and B on the maxilla and mandible, respectively, onto the occlusal plane | Change in Wits appraisal evaluated on the lateral cephalograms taken at the start and at the end of active treatment (6-10 months) |
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Inclusion Criteria:
Exclusion Criteria:
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| ID | Term |
|---|---|
| D008313 | Malocclusion, Angle Class III |
| ID | Term |
|---|---|
| D008310 | Malocclusion |
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
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| Facial mask | Device | The facial mask consists of a chin pad and frontal pad connected by a central steel bar. On the central bar there is a horizontal steel bar to which latex elastic bands are attached which develop 14 ounces of force. The elastics are connected to the rapid maxillary expander by means of two hooks welded on the bands of the second upper deciduous molars or the first upper permanent molars. |
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