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

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

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

Study Overview

• Status: Completed
• Conditions: Malocclusion
• Intervention / Treatment: Device: Class II elastic alone; Device: Class II elastics and Sliding Jig

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 Type: Interventional
• Enrollment (Actual): 30
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Colombia
  • Antioquia
    • Medellin, Antioquia, Colombia, 00000
      • Faculty of Dentistry

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 9 years to 36 years (Child, Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

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 Plan

How is the study designed?

Design Details

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

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Class II elastics alone; Use of class II elastics alone to correct class II dental malocclusions	Device: Class II elastic alone; 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; Other Names: Elastics 3/16 heavy, 6oz. Impala (Ormco)
Experimental: Class II elastics with Sliding Jig; Class II elastics with Sliding Jig for correction of dental class II malocclusion	Device: Class II elastics and Sliding Jig; Class II elastics, 3/16 6 oz, used daily for 3 months 24 hours per day and sliding jig orthodontic device; Other Names: Archwire SS 16X22; Sliding Jig made in SS 17X25; Elastics 3/16 Heavy (6oz) Impala (Ormco)

What is the study measuring?

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

Collaborators and Investigators

• Sponsor: Universidad de Antioquia
• Investigators: Principal Investigator: Luis A Sanchez, Professor, Universidad de Antioquia

Study record dates

Study Major Dates

• Study Start: March 1, 2010
• Primary Completion (Actual): October 1, 2011
• Study Completion (Actual): May 1, 2012

Study Registration Dates

• First Submitted: July 12, 2012
• First Submitted That Met QC Criteria: July 30, 2012
• First Posted (Estimate): July 31, 2012

Study Record Updates

• Last Update Posted (Estimate): July 31, 2012
• Last Update Submitted That Met QC Criteria: July 30, 2012
• Last Verified: July 1, 2012

More Information

Terms related to this study

• Keywords: Class II malocclusion; sliding jig; Distalization mechanics; Intermaxillary elastics
• Additional Relevant MeSH Terms: Stomatognathic Diseases; Tooth Diseases; Malocclusion
• Other Study ID Numbers: 006-2010