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

Not Applicable

Completed

• Conditions: Malocclusion
• Interventions: Device: Class II elastic alone; Device: Class II elastics and Sliding Jig

• Registration Number: NCT01654419
• Lead Sponsor: Universidad de Antioquia

Brief Summary

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

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.

Study Timeline

• Study Start: 2010-03
• Primary Completion: 2011-10
• Study Completion: 2012-05
• Status Verified: 2012-07
• Study First Submitted: 2012-07-12
• Study First Submitted QC: 2012-07-30
• Last Update Submitted: 2012-07-30
• Study First Posted: 2012-07-31
• Last Update Posted: 2012-07-31

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 30

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Class II elastics alone	Class II elastic alone	Use of class II elastics alone to correct class II dental malocclusions
Class II elastics with Sliding Jig	Class II elastics and Sliding Jig	Class II elastics with Sliding Jig for correction of dental class II malocclusion

Primary Outcome Measures

Name	Time	Method
CT analysis for comparison of distal movement of upper canine and molar using class II elastics	3 months	CT were taken to compare the quantity of distal movement of the upper canine and molar using class II elastics alone.

Secondary Outcome Measures

Name	Time	Method
CT analysis for comparison of distal movement of upper canine and molar using class II with Sliding Jig	3 months	CT were taken to compare the quantity of distal movement of the upper canine and molar using class II elastics with sliding jig

Trial Locations

Locations (1)

Faculty of Dentistry; 🇨🇴 Medellin, Antioquia, Colombia