Clinical trials: Orthodontic Retainers
Orthodontics, Retention
Vacuum-formed Retainer Versus Bonded Retainer to Prevent Relapse After Orthodontic Treatment
The purpose of this trial is to evaluate and compare stability after orthodontic treatment with an Essix retainer and a bonded cuspid-to-cuspid retainer (CTC), respectively in the mandibular arch and longitudinally follow these…
- Trial name
- NCT03070444
- Testing
- CTC retainer, Essix retainer maxilla, Essix retainer mandible
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- Region Gävleborg
Orthodontic Retention Compliance
Compliance After Orthodontic Treatment Using Thermoplastic or Hawley Retainers
This study aims to assess adolescent's compliance after the end of orthodontic treatment using either thermoplastic or Hawley retainers in the upper arch, with the aid of TheraMon microsensor (MC Technology GmbH).
- Trial name
- OrthoComply (NCT03683862)
- Testing
- orthodontic appliance
- Where
- Greece
- Volunteers
- 77 people, healthy volunteers welcome
- Sponsor
- University of Athens
Dental Malocclusion, Stability
Retention With Three Different Bonded Retainers a Multicenter, Randomized Controlled Trial With 5-year Follow-up
One of major challenges in orthodontics is to inhibit relapse and ensure stability of treatment outcomes. Retention is the phase of orthodontic treatment that attempts to keep teeth in the corrected position after correction with…
- Trial name
- NCT04828096
- Testing
- Orthodontic retention
- Where
- 2 sites in Spain, Sweden
- Volunteers
- 324 people, healthy volunteers welcome
- Sponsor
- Region Örebro County
Orthodontic Relapse, Retention in Orthodontic
Effectiveness, Patient Acceptance, and Cost Estimation of 3D-printed Retainer Compared to Hawley Retainer in Expansion Case: a Randomized Controlled Trial
Expansion of the arches is generally considered highly unstable and prone to relapse regardless of the type of expansion. Retention appliances play a vital role in preserving these changes.
- Trial name
- NCT07659041
- Testing
- 3D printed retainer, Hawley retainer
- Where
- 3 sites in Malaysia
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- National University of Malaysia
Orthodontic Treatment
Comparison of Periodontal Health, Bonding Time and Failure Between Direct and Indirect Fixed Retainer Placement Among Orthodontic Patients
The placement technique of retainers in both maxillary and mandibular arches can influence the time taken for bonding the retainer in the mouth of a patient which can in turn affect the patient´s response to the procedure.
- Trial name
- NCT07107100
- Testing
- a silicon jig/key is used to place/bond fixed retainer on teeth
- Where
- Pakistan
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Aga Khan University Hospital, Pakistan
Orthodontic Appliance Complication
Microbial Colonisation On Vacuum-Formed Retainers Constructed On Conventional Models And Three Dimensional (3D) Reconstructed Models
Vacuum-formed retainers are clear or transparent retainers, that hold the teeth in the new position after active orthodontic treatment.
- Trial name
- NCT03844425
- Testing
- Conventional VFR, VFR from SLA, VFR from FDM
- Where
- Malaysia
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- University of Malaya
Health of Periodontium
Comparison of the Effect of Two Types of Fixed Retainers on the Health of the Gums
Different types of retainers have been used to assure the stability of orthodontic treatment. The aim of this study is clinical and radiographic comparison and evaluation of two common types of lingual fixed retainers on the…
- Trial name
- NCT01314729
- Testing
- Fiber-reinforced-composite retainer, Composite-wire retainer
- Where
- Iran
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Shiraz University of Medical Sciences
Relapse
CAD/CAM Fixed Retainers vs. Conventional Multistranded Fixed Retainers in Orthodontic Patients. Comparison of Stability, Retainer Failure Rate, Adverse Effects, Cost-effectiveness, and Patient Satisfaction. A Randomized Controlled Clinical Trial
Introduction: Orthodontic retainers are used after the completion of orthodontic treatment to assure dental occlusal stability and to maintain the achieved end-result.
- Trial name
- Retention (NCT04389879)
- Testing
- Bonding of either CAD/CAM or conventional multistranded stainless steel fixed retainer
- Where
- 2 sites in Denmark, Norway
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Orthodontic Appliance Complication, Orthodontic Appliance Design
Periodontal and Orthodontic Outcomes of Straight vs. Looped Fixed Retainers
The goal of this split-mouth, head-to-head, randomized controlled trial is to compare the effects of a fixed straight retainer with the V- loop bonded retainer on periodontal health in patients with the requirement of continuous…
- Conditions
- Orthodontic Appliance Complication, Orthodontic Appliance Design, Orthodontic Treatment
- Trial name
- NCT05644119
- Testing
- V- loop Bonded Orthodontic Retainer, Straight Wire Retainer
- Where
- Saudi Arabia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- King Abdulaziz University
Orthodontic Relapse
Efficacy and Cost-effectiveness of Orthodontic Retention Protocols
Objective is to assess changes of dentition and periodontium, and hygiene in retention after the end of the active phase of orthodontic treatment, and relationship with gender, type of retention appliance, pre-therapeutic…
- Trial name
- orthoretenti (NCT05121220)
- Testing
- fixed retainer, removable retainer
- Where
- Croatia
- Volunteers
- 152 people, healthy volunteers welcome
- Sponsor
- Poliklinika Orthonova
Orthodontic Retainers
Biological Reaction of Direct 3d Printed Retainers
The aim of this study will be to evaluate the biological reaction of direct three dimensional printed retainers. Primary objective is to evaluate bacterial growth and color stability between different thicknesses of 3d printed…
- Trial name
- NCT07098325
- Testing
- retainer with .5 mm thickness, retainer with 1 mm thickness
- Where
- Egypt
- Volunteers
- 26 people
- Sponsor
- Al-Azhar University
Orthodontic Retention
Eight Units Extended Maxillary Fixed Retainer
Assessment of dental changes associated with an eight-unit extended maxillary fixed retainer in 3D. monitoring PDL response and evaluation of patient's satisfaction ,quality of life and speech with extended maxillary fixed…
- Trial name
- Extended FR (NCT05889884)
- Testing
- Extended maxillary fixed retainer
- Where
- Egypt
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Alexandria University
Fixed Orthodontic Retainer
Ultrasonographic Evaluation of Periodontal Effects of Fixed Retainers
This prospective clinical study aims to evaluate the effects of fixed lingual retainers placed after orthodontic treatment on periodontal soft and hard tissue parameters using ultrasonographic imaging.
- Trial name
- NCT07414264
- Where
- Turkey (Türkiye)
- Volunteers
- 53 people
- Sponsor
- Selcuk University
Orthodontic Appliance Complication
Stability of Maxillary Anterior Teeth After Two Years of Retention in Adolescents Comparing Two Bonded and a Vacuum-formed Retainer
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…
- Trial name
- NCT04616755
- Testing
- 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.
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Kronoberg County Council
Temporomandibular Joint Disorders After Using Essix Retainer
Clinical and Radiographic Evaluation of Different Thickness of Vacuum Formed Retainer (Essix Retainer) During Retention Phase After Orthodontic Treatment
vacuum formed retainer act as bite raiser that increase vertical dimension which may affect Tempromandibular joint and aim of this study is to perform clinical and radiographic evaluation of different thickness of vacuum formed…
- Trial name
- NCT04149366
- Testing
- Retainer
- Volunteers
- 40 people
- Sponsor
- Minia University
Orthodontic Retainers
Comparison Between CAD/CAM and Conventional Mandibular Fixed Retainers.
The devices compared in this study are 'retainers', i.e. fixed orthodontic retainers applied to the lingual surface of the central and lateral incisors and lower canines bilaterally.
- Trial name
- NCT06529601
- Testing
- CAD/CAM mandibular fixed retainer, Conventional mandibular fixed retainer
- Where
- Italy
- Volunteers
- 54 people
- Sponsor
- Azienda Ospedaliero-Universitaria Careggi
Relapse
Clinical Effectiveness of Bonded Versus Vacuum-formed Retainers
The purpose of the study was to compare the clinical effectiveness of bonded versus vacuum-formed retainers regarding their retention capacity; periodontal health; survival rates; and patients' perception after 12 months of…
- Trial name
- NCT04847323
- Testing
- V-bend Bonded Retainer, Vacuum-formed Retainer
- Where
- Brazil
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Dent Disease
Evaluation of the Release of Monomers From Composite Bonding Resins in Orthodontics
In recent decades, the field of public health has become increasingly interested in endocrine disruptors, and their effects on humans.
- Trial name
- MONORTHO (NCT04459013)
- Testing
- Salivary samples
- Where
- France
- Volunteers
- 41 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Tooth Color
Effects of the Different Orthodontic Fixed Retainers on Enamel Colour Change
The aim of this study is to compare the tooth colour changes caused by retainers made of stainless steel wires and fiber reinforced in long term
- Trial name
- NCT04105829
- Testing
- Bond-a braid, EverStick-Ortho, Ribbond
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Gaziantep
Orthodontic Retention Appliance, Orthodontic Relapse
Effectiveness of Gold Fixed Retainers Compared to Conventional Stainless Steel Retainers
This randomized clinical trial will compare the effectiveness of a gold-plated multistranded mandibular fixed retainer versus a conventional multistranded stainless-steel fixed retainer in maintaining lower anterior tooth…
- Trial name
- NCT07280455
- Testing
- Gold-coated fixed retainer wire, Stainless steel fixed retainer wire
- Where
- Iraq
- Volunteers
- 40 people
- Sponsor
- Noor Sattar Raheem