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Outcome Measures

Primary Outcomes (1)

rate of canine retraction
millimeters through superimposed digital models taken for each patient monthly at the follow up visits.
3 months

Secondary Outcomes (7)

Total distance moved by the maxillary canine tip
3 months
Amount of canine root movement
3 months
the change in Maxillary canine Torque
3 months
change in maxillary canine tipping
3 months
The changes in maxillary canine rotation
3 months
+2 more secondary outcomes

Study Arms (2)

Single-slot brackets

ACTIVE COMPARATOR

Bonding of the upper arch up to second molars with Roth prescription 0.022x.028" single slot brackets (MINI MS-American orthodontics)

Device: Single-slot brackets

Double-slot brackets

EXPERIMENTAL

Double slot brackets (SORTECH-South Orthodontic Technology) will be Bonded on the upper arch up to the second molars. The brackets are of Roth prescription \& have two slots, cervical 0.018x.025" slot and incisal/occlusal 0.022x.028" slot

Device: Double-slot brackets

Interventions

Double-slot bracketsDevice

Miniscrews will be inserted in the buccal alveolar bone between first and second molars bilaterally and ligated to second premolar. Canine Retraction using Nickel titanium closed-coil springs delivering a force of 150 gram, extending the spring between the canine and first molar hooks. retraction on double 0.016'' Stainless steel round wires in both slots of the double slot brackets. Re-activation of the coil spring will be done in the follow up visits to maintain a constant force through the study.

Double-slot brackets

Single-slot bracketsDevice

Study Officials

Amr R El Beialy, Assoc.Prof

Orthodontic department, Faculty of Dentistry, Cairo University

STUDY CHAIR

Nada O El Zawahry, lecturer

Orthodontic department, Faculty of Dentistry, Cairo University

STUDY DIRECTOR

Noha A El Ashmawi, lecturer

Orthodontic department, Faculty of Dentistry, Cairo University

STUDY DIRECTOR

Study Design

Study Type

interventional

Phase

not applicable

Allocation

RANDOMIZED

Masking

SINGLE

Who Masked

OUTCOMES ASSESSOR

Masking Details

Due to the nature of the intervention, neither participants nor investigators can be blinded.

Purpose

TREATMENT

Intervention Model

PARALLEL

Model Details: study is a randomized clinical trial, single-center, parallel group, two-arms with 1:1 allocation ratio

Sponsor Type

OTHER

Responsible Party

PRINCIPAL INVESTIGATOR

PI Title

Principal Investigator

The Effectiveness of Double-slot Brackets Versus Single-slot Brackets on the Rate of Canine Retraction

Brief Summary

Registry Overview

Trial Relationships

Study Timeline

First Submitted

First Posted

Study Start

Primary Completion

Study Completion

Conditions

Keywords

Outcome Measures

Primary Outcomes (1)

Secondary Outcomes (7)

Study Arms (2)

Single-slot brackets

Double-slot brackets

Interventions

Eligibility Criteria

You may qualify if:

Sponsors & Collaborators

Study Sites (1)

Study Officials

Enrollment

Study Design

Study Record Dates

You may not qualify if:

Source record

Locations

Brief Summary

Registry Overview

Trial Relationships

Related Scientific Literature

Study Timeline

First Submitted

First Posted

Study Start

Primary Completion

Study Completion

Conditions

Keywords

Outcome Measures

Primary Outcomes (1)

Secondary Outcomes (7)

Study Arms (2)

Single-slot brackets

Double-slot brackets

Interventions

Eligibility Criteria

You may qualify if:

Sponsors & Collaborators

Study Sites (1)

Study Officials

Enrollment

Study Design

Study Record Dates

You may not qualify if:

Source record

Locations