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Stability of Maxillary Anterior Teeth After Two Years of Retention in Adolescents Comparing Two Bonded and a Vacuum-formed Retainer

NCT04616755 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2020-11-13

No results posted yet for this study

Summary

After orthodontic treatment 3 different retention devices will be compared.Thirty patients in each group; Group 1) Bonded retainer 13-23, Group 2)Bonded retainer 12-22 and Group 3) Vacuum-formed retainer covering all erupted teeth in the maxilla. Retention capacity between these three devices will be compared after 2 years of retention by measuring Contact Point displacements (CPD) between 6 anterior teeth and sum of 5 anterior CPDs called Little´s Irregularity Index (LII).

Conditions

  • Orthodontic Appliance Complication

Interventions

OTHER

Measuring changes of Little´s irregularity index ( sum of 5 contact point discrepancies together) measured in mm 2 years after retention have been I place.

Measuring changes occurred under 2 years which the retention devices have been in place between the groups

Sponsors & Collaborators

  • Malmö University

    collaborator OTHER

  • Kronoberg County Council

    lead OTHER_GOV

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
11 Years
Max Age
19 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2013-04-30
Primary Completion
2018-08-31
Completion
2020-08-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04616755 on ClinicalTrials.gov