Effect of Archwire Gauge on the Rate of Canine Retraction

Effect of Archwire Gauge on the Rate of Canine Retraction in Adults: A Randomized Clinical Trial

trial will be done to evaluate the effect of archwire gauge on the rate of canine retraction, canine tip and torque, root resorption and loss of anchorage in maxillary dental protrusion cases requiring first premolars extraction.

Study Overview

• Status: Completed
• Conditions: Canine Retraction
• Intervention / Treatment: Other: st.st 0.019×0.025" wire; Other: st.st 0.016×0.022" wire; Other: st.st 0.017×0.025" wire

Detailed Description

Three working archwires of different gauges will be used during canine retraction; st.st 0.019×0.025" as a comparator, st.st 0.016×0.022" and st.st 0.017×0.025" wires as interventions. after levelling and alignment till reaching the working archwire, it will be left in place for a month then maxillary first premolars will be extracted and base line records will be taken(digital models, digital periapical radiographs and panorama). digital models will be taken monthly to measure rate of canine retraction for 6 months. after 6 month evaluation of anchorage loss, change in canine tip and torque will be done on last obtained digital model , panorama will be taken to evaluate the change in canine tip and digital periapical radiograph will be taken and compared with the preretraction radiograph to evaluate amount of root resorption.

• Study Type: Interventional
• Enrollment (Actual): 18
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Egypt
  • Cairo, Egypt
    • Faculty of Dentistry, Cairo University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 26 years (Child, Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Adult females (age range 18-28 years old).
• Maxillary dental protrusion indicating first premolars extraction.
• Full permanent dentition (not necessitating third molars).

Exclusion Criteria:

• Patients having systemic diseases or on medications that would affect tooth movement.
• Active periodontal disease or obvious bone resorption in maxillary arch.
• Patients with habits that are detrimental to dental occlusion (thumb sucking, tongue thrusting … etc.).
• Previous orthodontic treatment.
• Missing teeth.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: st.st 0.019×0.025" wire	Other: st.st 0.019×0.025" wire; rectangular stainless steel wire that will be used during canine retraction after first premolars extraction
Experimental: st.st 0.016×0.022" wire	Other: st.st 0.016×0.022" wire; rectangular stainless steel wire that will be used during canine retraction after first premolars extraction
Experimental: st.st 0.017×0.025" wire	Other: st.st 0.017×0.025" wire; rectangular stainless steel wire that will be used during canine retraction after first premolars extraction

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
rate of canine retraction	the distance that canine moved every month	6 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
change in canine tip	change in canine crown tipping to certain reference plane with the aid of cone beam computed tomography	6 months
change in canine torque	change in canine crown and root torque to certain reference plane with the aid of cone beam computed tomography	6 months
loss of molar anchorage	assess from digital models if there is change in mesio-distal position of maxillary first molar	6 months
amount of canine root resorption	assess amount of root resorption (if occurred) with the aid of cone beam computed tomography	6 months

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (Actual): September 10, 2019
• Primary Completion (Actual): September 20, 2020
• Study Completion (Actual): July 15, 2021

Study Registration Dates

• First Submitted: July 9, 2019
• First Submitted That Met QC Criteria: July 12, 2019
• First Posted (Actual): July 16, 2019

Study Record Updates

• Last Update Posted (Actual): July 22, 2022
• Last Update Submitted That Met QC Criteria: July 20, 2022
• Last Verified: July 1, 2022

More Information

Terms related to this study

• Keywords: canine retraction; archwire gauge
• Other Study ID Numbers: 334

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No