Does Double With Regular Monitoring Prevent Undesired Tooth Movement?

Does Double (Fixed and Removable Orthodontic Retention) With Regular Monitoring Prevent Undesired Tooth Movement?

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT05626335

Enrollment

100

Registered

2022-11-23

Start date

2021-01-01

Completion date

2022-09-09

Last updated

2022-11-23

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

Conditions

Malocclusion

Keywords

retention, stability, orthodontic treatment, 3D analysis, intraoral scan

Brief summary

The goal of observational study is to learn about the stability of orthodontic treatment results in orthodontic patients during retention phase of treatment.

Detailed description

The aim of the present study was to three-dimensionally analyze tooth movement in retention phase of treatment and wherever double effectively retention prevents it.

Interventions

DIAGNOSTIC_TESTIntraoral scan

On the day of debonding, directly following retainer bonding, intraoral scans were performed (T0), using 3Shape Trios 4 (3Shape, Copenhagen, Denmark). The scans were repeated after a month. The patients were invited for repeating the scans after 1 (T1), 3 (T2) and 6 months (T3).

Study design

Observational model

CASE_ONLY

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Inclusion criteria

* Non-extraction treatment * No hypodontia * Normal occlusion after treatment (Class I occlusion), perfect alignment * Normal overjet and overbite * Double retention including fixed retainer bonded from canine to canine in both dental arches and thermally formed removable splint

Exclusion criteria

* Fixed orthodontic treatment in one dental arch * Extraction cases * Patient treated with orthognathic surgery * Imperfect treatment result due to treatment cessation on patients demand or health issues * Craniofacial disorders

Design outcomes

Primary

Measure	Time frame	Description
Tooth displacement in mm	One month after debonding	Measurement obtained by comparing superimposed scans

Secondary

Measure	Time frame	Description
Failure rate	Six months of observation	Registration wherever the retention failure occured
Compliance rate	Six months of observation	Registration of patients attending to scheduled visits

Countries

Poland

Outcome results

None listed

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