The effect of the clear expansion plate on the posterior teeth of the upper arch

The comparison of the effect of expansion with traditional and clear expansion plate on inclination of upper molars; a randomized clinical trial

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20170723035238N4

Enrollment

Registered

2022-01-22

Start date

2022-01-25

Completion date

Unknown

Last updated

2022-02-07

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

Conditions

Upper arch constriction. Malocclusion, unspecified

Interventions

Intervention 1: Intervention group: clear expansion plate. In This group we will use clear expansion plate for the patients who need arch expansion . Clear expansion plate is made from thermoplastic s

Eligibility

Sex/Gender

All

Age

5 Years to 14 Years

Inclusion criteria

Inclusion criteria: Mixed dentition patients The patients' tendency to attend in the study Signing the informed consent form to participate in the study Upper arch constriction

Exclusion criteria

Exclusion criteria: Poor patient cooperation in follow-up sessions Poor oral hygiene Extraction of upper first molars during the treatment Fracture, crown or any kind of restoration which involve the occlusal surface of the first molars

Design outcomes

Primary

Measure	Time frame
The change in the toque of upper posterior teeth. Timepoint: Before treatment and 6 months later. Method of measurement: Stone casts.;Arch expansion. Timepoint: Before treatment and 6 months later. Method of measurement: Stone casts.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAhmad Behroozian

Tabriz University of Medical Sciences

ahmadbehroozian@yahoo.com+98 41 3334 7635

Outcome results

None listed

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