Clinical trials: Orthodontic Retainer
Bond, Pair
Comparison of 3D Printed Metal Fixed Retainer Versus Conventional Fixed Bonded Retainer
Despite the growing diversity of materials used for mandibular fixed retainers, the evidence base remains inconclusive. In particular, conflicting findings have been reported regarding the bond failure of titanium retainers…
- Trial name
- NCT07538869
- Testing
- bar 3d printed metal fixed retainer, conventional fixed retainer
- Where
- Egypt
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Amany Ibrahim
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
Bond, Pair
Comparison of Perforated 3D Printed Versus Conventional Metal Fixed Bonded Retainer
Although different materials of mandibular fixed retainer were discussed in the literature, there is contradicting evidence regarding the bond failure of Titanium fixed metal retainer, whether immediate or after 12 months.
- Trial name
- NCT06851897
- Testing
- perforated 3D printed metal fixed retainer, conventional fixed retainer
- Where
- Egypt
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Mariam Alaa
Cleft Lip and Palate
Effectiveness of a Customized 3D Printed Nostril Retainer Combined With Taping Vs.Taping Only on Enhancing the Nasolabial Esthetics and Maxillary Arch Dimensions in Infants With Unilateral Complete Cleft Lip and Palate.
Lip taping was proven as simple, handy technique of PSIO for alveolar molding yielding enhanced maxillary arch dimensions in UCCLP infants.
- Trial name
- NCT06211205
- Testing
- Customized 3D printed nostril retainer combined with lip taping, Lip taping
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
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
Survival, Prosthesis
Clinical Assessment of All Ceramic Single-retainer Using Upper Canine as Abutment With Minimum Preparation on the Lingual Surface, to Replace the Upper Lateral Incisor and Will be Compared With the All Ceramic Single-retainer Using Upper Central Incisor.
The Intervention Will be All Ceramic Single-retainer Resin Bonded Fixed Partial Denture Using the Upper Canine as Abutment With Minimum Preparation on the Lingual Surface Within the Enamel Providing Maximum Area for the Retainer…
- Trial name
- NCT05812066
- Testing
- all ceramic single-retainer resin bonded fixed partial denture
- Where
- Egypt
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Cairo University
Missing Teeth
Single-retainer Lithium Di-silicate Versus Zirconia Resin Bonded Bridge for Replacement of an Anterior Missing Tooth.
First, Participants in this study will be recruit according to inclusion criteria. Proper examination for the participants (clinically and radiographically). Preparation for abutment tooth for Resin bonded fixed partial denture.
- Trial name
- RBFPD (NCT05861921)
- Testing
- Single-retainer Lithium Di-silicate Resin Bonded Fixed Partial Denture
- Where
- Egypt
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Cairo University
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
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
Denture, Partial, Fixed, Resin-Bonded, Tooth Loss / Rehabilitation
Clinical Outcomes of CAD/CAM Single-Retainer Monolithic Zirconia Ceramic Resin-Bonded Fixed Dentures Bonded With Two Different Resin Cements
Congenitally missing tooth is one of the most common anomalies in human dentition. The treatment options of lateral incisor agenesis are closing the space with orthodontic treatment, implant treatment, conventional fixed dental…
- Conditions
- Denture, Partial, Fixed, Resin-Bonded, Tooth Loss / Rehabilitation, Resin Cements
- Trial name
- NCT04491097
- Testing
- Panavia V5 resin cement, Panavia F2.0 resin cement
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Istanbul Medipol University Hospital
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
Retention
Effectiveness of PEEK Fixed Retainer
A randomized clinical trial is set out to compare the effectiveness of two types of fixed retainer (multistranded stainless steel and PEEK types) in maintaining the stability of lower anterior teeth with less failure rate.
- Trial name
- RCT (NCT05557136)
- Testing
- Multistranded stainless steel fixed retainer, Polyether-Ether-Ketone (PEEK) fixed retainer
- Where
- Iraq
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Esraa Salman Jasim