Efficiency of Rigid Versus Non-rigid Indirect Anchorage During Canine Retraction: A Split Mouth Randomized Study

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

15 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-02

Study Completion Date

2024-06-02

Brief Summary

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Indirect anchorage (In-A) has been broadly used for anchorage reinforcement during anterior segment retraction. The study compared between the efficacy of rigid vs non-rigid connections of In-A i during upper canine retraction in dentoalveolar protrusion cases

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Detailed Description

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Fifteen female patients with dentoalveolar protrusion were included in this study. A miniscrew was inserted following levelling and alignment between the upper first molar and second premolar of both sides. Randomization was applied before first premolar extraction where one side of the arch received a rigid indirect anchorage connection (Group I) of 0.019 x 0.025-inch stainless steel (St.St) archwire from the miniscrew to the auxiliary tube of the upper first molar band, and the other side received a non-rigid indirect anchorage connection (Group II) of 0.014-inch St.St ligature ligating the upper second premolar to the miniscrew. Canine retraction was performed on 0.017 x 0.025-inch St.St archwire applying 1.5 N retraction force. The duration of the study was 7 months. Data was collected from digitized models where anchorage loss of the upper first molar relative to the frontal plane and the vertical position of the upper second premolar were measured

Conditions

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Orthodontic Appliance Complication

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

split mouth randomized clinical trial

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Non-Rigid connection

side received a non-rigid 0.014-inch St.St ligature ligating the upper second premolar to the miniscrew.

Group Type EXPERIMENTAL

non rigid indirect anchorage connection

Intervention Type PROCEDURE

a nonrigid connection is placed between the miniscrews and the second premolar to prevent mesial tooth movement.

Rigid Connection

rigid wire 19 x 25 inch stst wire was place between upper first molar and the miniscrew placed between the first molar and second premolar

Group Type ACTIVE_COMPARATOR

rigid indirect anchorage connection

Intervention Type PROCEDURE

a rigid connection is placed between the miniscrews and the first molar to prevent mesial tooth movement.

Interventions

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non rigid indirect anchorage connection

a nonrigid connection is placed between the miniscrews and the second premolar to prevent mesial tooth movement.

Intervention Type PROCEDURE

rigid indirect anchorage connection

a rigid connection is placed between the miniscrews and the first molar to prevent mesial tooth movement.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

Adult females Bimaxillary protrusion requiring first premolars extractions Full permanent dentition Good oral hygiene

Exclusion Criteria

History of previous orthodontic treatment Abnormalities in teeth size and/or shape Vertical, transverse, or anteroposterior skeletal discrepancies Anti-inflammatory medication

Minimum Eligible Age

13 Years

Maximum Eligible Age

23 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes