Clinical trials: Orthodontic Retainers
Orthodontic Retention Appliance, Clear Orthodontic Retainers
Comparison of Dimensional Accuracy and Color Stability Between Direct 3D-printed and Thermoformed Retainers
This study aims to compare two types of orthodontic retainers used after active treatment to maintain teeth position. The retainers are fabricated using either direct 3D-printing or thermoforming methods.
- Trial name
- NCT07053410
- Testing
- Direct 3D-Printed Retainer, Single-Layer Thermoformed Retainer, Multi-Layer Thermoformed Retainer
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Essraa hassan Hussein Mohamed
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 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
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
Relapse
: "Comparative Evaluation of 3 Dimensional Changes of Dentition in Post Orthodontic Patients With Immediate vs Delayed (Post 3 Days) Retainer Delivery
Maintaining teeth in their corrected position after orthodontic treatment is one of the most challenging part of orthodontic treatment and hence a period of stabilization termed as retention is provided after orthodontic…
- Trial name
- NCT05879588
- Testing
- immediate orthodontic retainer delivery, delayed orthodontic retainer delivery
- Where
- India
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Postgraduate Institute of Dental Sciences Rohtak
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
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 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 Relapse, Malocclusion
3D-Printed vs Conventional Fixed Retainers After Orthodontic Treatment
This randomized clinical trial aims to compare the clinical performance of two types of three-dimensionally printed fixed retainers (Cobalt-Chromium and Titanium Grade 5) with the conventional multistranded stainless steel fixed…
- Trial name
- NCT07730476
- Testing
- Conventional Multistranded Stainless Steel Fixed Retainer, 3D-Printed Cobalt-Chromium Fixed Retainer, 3D-Printed Titanium Fixed Retainer
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Minia University
Relapse
Comparison of Efficiency and Effectiveness of Two Types of Bonded Orthodontic Retainers: an RCT.
Comparson of efficiency and effectiveness of twisted/coaxial and linked retainers, placed under relative versus absolute isolation.
- Trial name
- NCT05250765
- Testing
- Twistflex retainer, Orthoflex retainer
- Where
- Belgium
- Volunteers
- 114 people, healthy volunteers welcome
- Sponsor
- University Hospital, Ghent
Relapse
Comparison of Retention Characteristics of Immediate vs Delayed Retainer Delivery Using 3D Digital Model Analysis
Retention has been defined as "the holding of teeth following orthodontic treatment in the treated position for the period of time necessary for the maintenance of the result".
- Trial name
- NCT06292364
- Testing
- immediate orthodontic retainer delivery, delayed orthodontic retainer delivery
- Where
- India
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Postgraduate Institute of Dental Sciences Rohtak
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
Orthodontic Retention
3D-Printed Vs Thermoformed Retainers: Comparison of Post-Treatment Stability, Changes in Mechanical Properties and Patients' OHRQoL
Following completion of orthodontic treatment, prolonged retention with either part-time or full-time wear of retainers is crucial in preventing relapse.
- Trial name
- NCT05968625
- Testing
- Thermoformed retainers, 3D-printed retainers
- Where
- Malaysia
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Malaya
Relapse
"Comparative Evaluation of 3 Dimensional Changes of Dentition in Post Orthodontic Patients With Immediate vs Delayed (Post 7 Days) Retainer Delivery
After orthodontic treatment, relapse is inevitable and is defined as a movement towards the initial state which is undesirable. To prevent relapse, a phase of retention is required.
- Trial name
- NCT05612932
- Testing
- immediate orthodontic retainer delivery, delayed orthodontic retainer delivery
- Where
- India
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Postgraduate Institute of Dental Sciences Rohtak
Orthodontic Retainer
Morphological Changes of Removable Orthodontic Retainers During the Use
The retention is one of the stages of orthodontic treatment that aims to keep the teeth in the correct positions after orthodontic treatment.
- Trial name
- NCT06283823
- Testing
- Thermoformed orthodontic retainer
- Where
- Italy
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of L'Aquila
Orthodontic Retainer, Fixed Orthodontic Retainer
Retentive Capacity of Bonded Retainer Vs Vacuum-formed and Combined Bonded-vacuum Retainers
The main goal is to test the differences between the retentive capacity of fixed retainer, vacuum-formed retainer \& combination of both; and recommend the most effective protocol for retention of lower incisors crowding treated…
- Conditions
- Orthodontic Retainer, Fixed Orthodontic Retainer, Orthodontic Relapse, Essix Retainer
- Trial name
- NCT06476574
- Testing
- Vacuum-formed retainer, Combined Vacuum-formed and Lingual bonded retainer from canine-to-canine., Lingual bonded retainer from canine-to-canine
- Where
- Egypt
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Cairo 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