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THE PURPOSE OF THE STUDY IS COMPARE THE QUANTITY OF DISTAL MOVEMENT OF THE UPPER CANINE AND MOLAR USING CLASS II ELASTICS WITH AND WITHOUT SLIDING JIG IN A PERIOD OF 3 MONTHS
To achieve a Class I canine relationship at the end of the alignment and leveling phase, different intraoral devices have been used. These include intermaxillary class II elastics, which retract the upper and protract the lower arch, generating extrusive forces at the anchorage sites. Its upper distalizing action is exerted to the canine bracket and transmitted through the posterior teeth where the upper molar does not receive a direct force. The sliding jig is an auxiliary addition that exerts force to the molar by an elastic hanged in a jig between the lateral and the canine in class II; such mechanism decreases the vertical adverse effects of the elastics wearing while directing the distalizing force to the molar.
A randomized, unblinded, clinical trial comparing 30 units of analysis (hemi arches) in which were placed sliding jig or stand alone elastics were perform.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Class II elastics alone | Active Comparator | Use of class II elastics alone to correct class II dental malocclusions |
|
| Class II elastics with Sliding Jig | Experimental | Class II elastics with Sliding Jig for correction of dental class II malocclusion |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Class II elastics and Sliding Jig | Device | Class II elastics, 3/16 6 oz, used daily for 3 months 24 hours per day and sliding jig orthodontic device |
|
| Measure | Description | Time Frame |
|---|---|---|
| CT analysis for comparison of distal movement of upper canine and molar using class II elastics | CT were taken to compare the quantity of distal movement of the upper canine and molar using class II elastics alone. | 3 months |
| Measure | Description | Time Frame |
|---|---|---|
| CT analysis for comparison of distal movement of upper canine and molar using class II with Sliding Jig | CT were taken to compare the quantity of distal movement of the upper canine and molar using class II elastics with sliding jig | 3 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Luis A Sanchez, Professor | Universidad de Antioquia | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Dentistry | Medellín | Antioquia | 00000 | Colombia |
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| ID | Term |
|---|---|
| D008310 | Malocclusion |
| D057887 | Overbite |
| ID | Term |
|---|---|
| D014076 | Tooth Diseases |
| D009057 | Stomatognathic Diseases |
| D008312 | Malocclusion, Angle Class II |
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| Class II elastic alone | Device | Elastics Class II alone, used 24 hours per day for 3 months from the hook of the upper canine to the first lower molar hook |
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