Evaluating the success of fixed retainers in orthodontic patients

Comparision of the effect of three different approaches of retention on reopening of extraction space of fixed orthodontic patients in three different retention phases

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT2013113015598N1

Enrollment

Registered

2014-10-25

Start date

2013-12-22

Completion date

Unknown

Last updated

2018-02-22

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

Conditions

Evaluating the success of fixed retainers in orthodontic patients. Fitting and adjustment of orthodontic device

Interventions

Intervention 1: Extended fixed retainer in group 1. Intervention 2: flexible spiral wire retainer. Intervention 3: Fixed flexible spiral wire retainer along with a Hawley plaque.

Treatment - Drugs

Extended fixed retainer in group 1

flexible spiral wire retainer

Fixed flexible spiral wire retainer along with a Hawley plaque

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Inclusion criteria:the presence of all the permanent teeth irrespective of third molars; the use of a fixed flexible spiral wire retainer or an extended fixed retainer or a fixed flexible spiral wire retainer along with a Hawley plaque Exclusion criteria:missing teeth; the use of other types of retainers

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Reopening of extraction space. Timepoint: debonding day, 2 month and 6 month after debonding day. Method of measurement: In millimetre by leaf guage.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactFarzaneh Rasouli

Orthodontics Department of Dental Taculty,Tabriz University of Medical Sciences

farzaneh.rasouli@yahoo.comRasoulifa@tbzmed.ac.ir+98 41 3335 7314

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026