Efficacy and Cost-effectiveness of Orthodontic Retention Protocols
NCT ID: NCT05121220
Last Updated: 2022-05-09
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
152 participants
INTERVENTIONAL
2020-11-15
2023-11-15
Brief Summary
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Detailed Description
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Subjects will be examined before orthodontic treatment (T0), upon completion of treatment (T1), six months in retention (T2), two years (T3) and three years in retention (T4). Changes in intercanine width, relapse (unexpected tooth movements), retainer failure, accumulation of biofilm, calculus and gingivitis will be assessed.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
SINGLE
Study Groups
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fixed mandibular lingual rectangular retainer 0.673 x 0.268 mm
0.673 x 0.268 mm 8-stranded wire Bond A Braid (Reliance Orthodontic Products, USA) will be bonded in mandible canine to canine on each tooth using Filtek flowable composite (Ivoclar Vivadent, Lichtenstein) and Multilink adhesive (3M, USA).
fixed retainer
bonded lingual mandibular fixed retainer on frontal teeth 33-43
fixed mandibular lingual round retainer 0.40 mm
0.40 mm round 6-stranded wire (Forestadent, Germany) will be bonded on 6 mandibular frontal teeth, canine to canine on each tooth using Filtek flowable composite (Ivoclar Vivadent, Lichtenstein) and Multilink adhesive (3M, USA).
fixed retainer
bonded lingual mandibular fixed retainer on frontal teeth 33-43
removable mandibular retainer
Group without fixed retainer will be wearing removable thermoplastic vacuum-formed Essix retainer
removable retainer
thermoplastic vacuum-formed removable mandibular retainer
Interventions
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fixed retainer
bonded lingual mandibular fixed retainer on frontal teeth 33-43
removable retainer
thermoplastic vacuum-formed removable mandibular retainer
Eligibility Criteria
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Inclusion Criteria
11 Years
18 Years
ALL
Yes
Sponsors
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University of Zagreb School of Dental Medicine, Zagreb, Croatia
UNKNOWN
University of Rijeka Faculty of Dental Medicine, Rijeka, Croatia
UNKNOWN
Poliklinika Orthonova
OTHER
Responsible Party
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silvija kanižaj ugrin
Dentist, Orthodontic specialist
Principal Investigators
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Silvija Kanižaj Ugrin, DDM
Role: PRINCIPAL_INVESTIGATOR
Poliklinika Orthonova
Locations
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Poliklinika Orthonova
Zagreb, , Croatia
Countries
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Central Contacts
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Facility Contacts
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References
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Kanizaj Ugrin S, Spalj S. Comparison of efficacy of thermoplastic retainer with round and rectangular bonded lingual wire retainer in the mandible two years after orthodontic treatment: a randomised controlled trial. Clin Oral Investig. 2024 Mar 1;28(3):183. doi: 10.1007/s00784-024-05572-y.
Other Identifiers
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66771011
Identifier Type: -
Identifier Source: org_study_id
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