Clinical trials: Orthodontic Retainers
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
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 Retainer
Comparative Assessment of Failure Rate of Fixed Lingual Retainer Between Two Types of Light Cured Resin Composite
The study will be performed on human subjects with finished orthodontic treatment to see the failure rate(detachment) of fixed lingual retainer between two types of light cure resin composite
- Trial name
- NCT05660668
- Testing
- Transbond LR, Transbond XT
- Where
- Egypt
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Cairo University
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
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
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
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
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 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
Gingival Health
The Effects of Using Water Flosser Versus Interdental Brush on Gingival Health in Patients With Mandibular Bonded Retainer
This randomized controlled trial aimed to investigate and compare the effects of employing a water flosser versus an interdental brush on the gingival health of individuals with mandibular bonded retainers.
- Trial name
- NCT07054203
- Testing
- Water Flosser, Interdental Brush
- Where
- Pakistan
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Aga Khan University
Orthodontic Retention
Comparative Evaluation of Salivary Bisphenol-A Levels in Patients With Fixed Lingual, Hawley and Vacuum-formed Retainers
The aim of this study; to measure the BPA release amount of fixed lingual retainers applied with Bis-GMA-containing composite , fixed lingual retainers applied with Bis-GMA-free composite, vacuum-formed and hawley retainers which…
- Trial name
- NCT05738889
- Testing
- Fixed lingual retainers applied with Bis-GMA containing composite, Fixed lingual retainers applied with Bis-GMA-free composite, Vacuum-formed retainers
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Aydin Adnan Menderes University
Orthodontic Appliance Complication
Evaluation of Fixed Mandibular Retainer Using 3D Printed Positioning Tray Versus Direct Bonding Technique
Although there are many studies in the literature concerning methods of bonding of mandibular retainers whether directly or indirectly, there is a very limited evidence regarding their chair side time and bond failure.
- Trial name
- NCT03572179
- Testing
- 3d printed positioning tray
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Raghda Alaa
Quality of Life
Randomized Controlled Clinical Trial Of Oral Health-Related Quality Of Life In Patients Wearing Vacuum Formed Thermoplastic Retainers Constructed On Conventional Stone Models And On 3D Reconstructed Orthodontic Study Model
In dentistry, 3D printing technology is gaining interest. One of the potential application is to construct appliances on 3D reconstructed study models.
- Trial name
- NCT02866617
- Testing
- Vacuum Formed Thermoplastic Retainers Constructed On 3D Reconstructed Orthodontic Study Model
- Where
- Malaysia
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Malaya
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
Dental Bonding, Orthodontic Retainers
Effect of Primer Application on the Lingual Retainer
Background: The aim of this study was to examine the effect of self-etch primer (SEP) application on the bond failure rate of a mandibular bonded lingual retainer over 24 months.
- Trial name
- NCT05340595
- Testing
- Orthodontic retainer bonding
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Ondokuz Mayıs University
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 Retainers, Clinical Trial
Comparison of Modified Vacuum-formed Retainers Versus Hawley Retainer
This study will focus on the relapse of arch width in two types of retention regimes, which are modified vacuum-formed retainers and Hawley type retainers in patients after fixed appliance treatment in transverse arch expansion…
- Trial name
- NCT04237298
- Testing
- Modified vacuum-formed retainer covering the palete
- Where
- 3 sites in Malaysia
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- National University of Malaysia
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
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