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Fixed retainer failure rate and investigating its relationship with de-bonding rate of brackets

Comparison of mandibular canine to canine fixed retainer failure rate bonded by two types of adhesives (GC flowable composite and GC Gradia composite) in orthodontic patients and investigating its relationship with de-bonding rate of brackets: RCT

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20230430058031N1
Enrollment
56
Registered
2023-11-04
Start date
2023-11-28
Completion date
Unknown
Last updated
2023-11-13

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

Conditions

Condition 1: Determining the bonding failure rate in two types of GC Flowable composite and GC Gradia composite. Condition 2: Comparing the failure rate of bonding brackets with the failure rate of fixed retainer bonding in the same patients. Condition 3: Determining clinical working time with two types of composite. Encounter for fitting and adjustment of orthodontic device Encounter for fitting and adjustment of orthodontic device Encounter for fitting and adjustment of orthodontic device

Interventions

Intervention 1: Intervention group: GC Gradia composite, Gradia direct anterior, Light cured composite restorative A1 4g(2.7 ml), Tokyo, Japan, Gradia composite is placed on the cingulum by the compos

Sponsors

Tabriz University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
15 Years to 25 Years

Inclusion criteria

Inclusion criteria: The Mandible needs a canine to canine fixed retainer and patients just finished their orthodontic treatment. The age range of patients is between 15 and 25 years.

Exclusion criteria

Exclusion criteria: Patients with gastrointestinal reflux Patients whose mandibular anterior teeth underwent RCT and the lingual surface of the tooth was restored Patients with too little saliva and xerostomia

Design outcomes

Primary

MeasureTime frame
The rate and location of failure of the fixed retainer. Timepoint: One-month,three-month,six-month follow-ups. Method of measurement: Observational.;Bonding failure rate of brackets. Timepoint: During the entire period of orthodontic treatment. Method of measurement: Observational.;Determining clinical working time with two types of composite. Timepoint: While working with composites. Method of measurement: stopwatch (observational).

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Mehdi Ravadgar

Tabriz University of Medical Sciences

m_ravadgar@yahoo.com+98 41 3325 0674

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Aug 26, 2026