Comparison of the Quantity of Distal Movement of the Upper Canine and Molar

Study Overview
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Brief Summary
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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

Detailed Description
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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.

Official Title
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Comparison of 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

Conditions
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Malocclusion

Intervention / Treatment
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* Device: Class II elastics and Sliding Jig
* Device: Class II elastic alone


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Class II dental malocclusion with alignment and leveling phase ended. Root completed not trauma Second molar erupted Third molar absent Dental and periodontal health Exclusion Criteria: Root uncompleted Dental Trauma Dental Pathology

Ages Eligible for Study
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Minimum Age: 13 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Class II elastics alone<br>Use of class II elastics alone to correct class II dental malocclusions | Device: Class II elastic alone<br>* 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<br>* Other names: Elastics 3/16 heavy, 6oz. Impala (Ormco);|
| Experimental: Class II elastics with Sliding Jig<br>Class II elastics with Sliding Jig for correction of dental class II malocclusion | Device: Class II elastics and Sliding Jig<br>* Class II elastics, 3/16 6 oz, used daily for 3 months 24 hours per day and sliding jig orthodontic device<br>* Other names: Elastics 3/16 Heavy (6oz) Impala (Ormco);|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | 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 | 

Secondary Outcome Measures

| Outcome Measure | 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 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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sliding jig, Class II malocclusion, Distalization mechanics, Intermaxillary elastics