Canine Retraction Using Different Bracket Slots' Sizes

NCT05361863 | Unknown DMC

• 1 other identifier: 169419
• Study Type: interventional
• Target: 45
• Locations: 1 country
• Sites: 1

Brief Summary

Primary Objective Evaluating the effectiveness of canine retraction in terms of: rate of movement and rotation using 0.020-inch slot and dual-slot systems in comparison with the 0.022-inch slot system. Secondary Objectives

• Measuring the amount of molar anchorage loss during canine retraction between the different bracket slot appliances.
• Evaluation of alignment efficiency using different bracket slot appliances. Null Hypothesis There is insignificant difference in the effectiveness of canine retraction with different bracket slot size appliances.
• Evaluation of the bracket slot and archwire dimensions precision

Conditions

Treating Class II Malocclusion and Bimaxillary Proclination

Keywords

Bracket slot size, canine retarction, anchorage loss

Outcome Measures

Primary Outcomes (1)

• The rate of movement and/or rotation

  Evaluating the effectiveness of canine retraction in terms of: rate of movement and/or rotation using 0.020-inch slot and dual-slot systems in comparison with the 0.022-inch slot system.

  10 months

Secondary Outcomes (1)

• Molar anchorage loss assessment during canine retraction

  10 months

Study Arms (3)

0.022×0.028-inch slot (Control Group)

EXPERIMENTAL

Leveling and alignment will be performed with 0.016-inch, 0.016×0.022-inch and 0.019×0.025-inch HANT followed by a working archwire of 0.019×0.025-inch stainless steel (Hangzhou Xingchen 3B Dental Instruments and Materials Co., Hangzhou, China).

Device: Orthodontic brackets

0.020×0.028-inch slot

ACTIVE COMPARATOR

Leveling and alignment will be carried out with 0.016-inch, 0.016×0.022-inch and 0.018×0.025-inch HANT followed by a working archwire of 0.018×0.025-inch stainless steel (Hangzhou Xingchen 3B Dental Instruments and Materials Co., Hangzhou, China).

Device: Orthodontic brackets

0.018×0.028-inch slot for the anterior teeth and 0.022×0.028-inch slot for the posterior teeth

ACTIVE COMPARATOR

Leveling and alignment will be completed with 0.016-inch, 0.016×0.016-inch, and 0.016×0.022-inch HANT followed by a working archwire of 0.016×0.022-inch stainless steel (Hangzhou Xingchen 3B Dental Instruments and Materials Co., Hangzhou, China).

Device: Orthodontic brackets

Interventions

Orthodontic brackets DEVICE

Interventions involving orthodontic brackets of different slot sizes

0.018×0.028-inch slot for the anterior teeth and 0.022×0.028-inch slot for the posterior teeth; 0.020×0.028-inch slot; 0.022×0.028-inch slot (Control Group)

Eligibility Criteria

• Age: 15 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Age 15 years and above at the start of treatment
• Molar relationship class II or I bimaxillary proclination
• Extraction of maxillary first premolar teeth as part of the orthodontic treatment
• Full set of permanent teeth regardless third molars
• No systemic diseases
• Good oral health at the start of treatment.

You may not qualify if:

• Orofacial clefting
• Impacted teeth
• Special needs patients
• Patients undergoing orthognathic (jaw) surgery as part of their orthodontic treatment plan
• Patients with systemic diseases requiring long-term use of Phenytoin, Cyclosporine, anti-inflammatory drugs, Bisphosphonates and systemic corticosteroids
• Poor oral hygiene, or active periodontal disease.

Sponsors & Collaborators

• University of Baghdad: lead

Study Sites (1)

College of Dentistry, University of Baghdad

Baghdad, 1001, Iraq

RECRUITING

MeSH Terms

Interventions

Orthodontic Brackets

Intervention Hierarchy (Ancestors)

Orthodontic Appliances, Fixed; Orthodontic Appliances; Orthodontics; Dentistry

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: QUADRUPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
• Masking Details: The appliance and archwires will be coded for each patient, so the investigator will be blinded about the size of brackets slot and archwires gauges. Moreover, data measurements and analysis will be carried out blindly too.
• Purpose: TREATMENT
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Model Details: The study aimed to evaluate the effectiveness of canine retraction in terms of: rate of movement and rotation using 0.020-inch slot and dual-slot systems in comparison with the 0.022-inch slot system.

Study Record Dates

• First Submitted: April 30, 2022
• First Posted: May 5, 2022
• Study Start: January 1, 2021
• Primary Completion: December 1, 2022
• Study Completion: June 1, 2023
• Last Updated: May 5, 2022

Record last verified: 2022-05

Locations

IR (1)