Relapse
Conditions
Keywords
fixed retainers, alignment
Brief summary
The study evaluates effectiveness of two types of fixed retainers in post orthodontic patients. Half of the subjects are randomly allocated Group 1 retainer (FRC) and other half is given Group 2 retainer (MSW) and followed for a period of one year.
Detailed description
54 subjects were recruited and divided into two groups by random allocation. Consents were obtained . Group 1 received fiber reinforced composite retainer and group 2 received multistranded stainless steel wire retainer. The patients were recalled at every three months interval for a period of 12 months. They were evaluated for number of fractures, failure pattern based on adhesive remnant index and relapse tendency by measuring little's irregularity index.
Interventions
DEVICEOrthodontic retainers
Orthodontic retainers were bonded on the lower teeth of the subjects after fixed orthodontic treatment and were evaluated for their effectiveness for the followup of one year.
Sponsors
Dow University of Health Sciences
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
14 Years to 30 Years
Healthy volunteers
Yes
Inclusion criteria
* Subjects who have completed fixed appliance orthodontic treatment. * Subjects who have signed the consent forms. * Subjects who have accepted the terms and conditions of visiting after every three months for one year. * Non extraction cases in the mandibular arch with no IPR. * Patients without caries/ restoration/ fracture on the lower anterior teeth. * Patients with healthy periodontium with no periodontal disease at that time.
Exclusion criteria
* Presence of syndrome or systemic disease. * Patients taking medications/ drugs. * Patients with poor oral hygiene. * Patients with congenitally absent/ missing anterior teeth in the mandibular arch. * Patients with habit of clenching/ bruxism. * Patients with history of betel nut chewing. * Presence of occlusal interferences.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Relapse tendency | 12 months | It was measured using Little's irregularity index |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Bond failure | 12 months | Number of bond failure was assessed at each visit. |
| Failure Pattern | 12 months | Type of failure pattern was assessed based on Adhesive remnant index. |
Countries
Pakistan
Outcome results
None listed