Effect of Changing the Activation Frequency of the Arch Wires on the Rate of Leveling and Alignment in Moderate Crowding Cases

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04106141

Enrollment

Registered

2019-09-26

Start date

2020-01-01

Completion date

2021-11-09

Last updated

2019-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Leveling and Alignment of Teeth

Brief summary

Leveling and alignment is the first stage in the orthodontic treatment, performed for every patient .The archwire are usually changed every 4 weeks for reactivation of the force on the teeth. However, this means that large number of appointments and archwires are required. On the other hand, there is a lack of evidence that less number of appointments with longer time intervals between the visits and less number of wires will give the same effect.

Interventions

OTHER6 weeks changing of archwire

changing the archwire after 6 weeks instead of 4 weeks

OTHER4 weeks changing of archwire

changing the archwire every 4 weeks

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 33 Years

Healthy volunteers

Inclusion criteria

* Adult patients aged (18\ 33) * CVMI = 6 * Moderate crowding (4-8) as described by Laura mitchel * No extractions required

Exclusion criteria

* Growing patients * Previous orthodontic treatment * Missing teeth other than the wisdoms

Design outcomes

Primary

Measure	Time frame	Description
Degree of alignment of teeth	5 months	the teeth are aligned together by using Little irregularity index to measure the decrease in the discrepency in each digital model taken after changing of the wire

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026