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

Cairo University (CU) logo

Cairo University (CU)

Status

Completed

Conditions

Orthodontic Appliance Complication

Treatments

Procedure: non rigid indirect anchorage connection
Procedure: rigid indirect anchorage connection

Study type

Interventional

Funder types

Other

Identifiers

NCT06554769
Cairo University (CairoU)

Details and patient eligibility

About

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

Full description

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

Enrollment

15 patients

Sex

Female

Ages

13 to 23 years old

Volunteers

Accepts Healthy Volunteers

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

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

15 participants in 2 patient groups

Non-Rigid connection
Experimental group
Description:
side received a non-rigid 0.014-inch St.St ligature ligating the upper second premolar to the miniscrew.
Treatment:
Procedure: non rigid indirect anchorage connection
Rigid Connection
Active Comparator group
Description:
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
Treatment:
Procedure: rigid indirect anchorage connection

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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