Clinical trials: Crown
Dental Implants
Single Implant Crowns Supported by Narrow or Standard Diameter Implants in Molar Sites
Standard dental implants require sufficient bone and spacing, which may not be available in all patients. To address these limitations, narrow diameter implants (≤3.5 mm) have been introduced as a less invasive alternative…
- Trial name
- NCT07073196
- Testing
- Dental implant treatment (narrow implants), Dental implant treatment (standard implants)
- Where
- United Arab Emirates
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Mohammed Bin Rashid University of Medicine and Health Sciences
Gingival Inflammation, Oral Bacterial Infection
Gingival Inflammatory Response,Bacterial Adhesion and Patient Satisfaction of Ceramo-metallic vs Zirconia Crowns
Ceramo metallic restoration has proved high success rate over past years as considered to be the gold standard while Monolithic zirconia as fixed dental prostheses have gained attention because of their good fracture strength…
- Trial name
- CairoU (NCT04077606)
- Testing
- ceramo-metallic crown prepartion, full anatomical monolithic zirconia crown
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Cairo University
Early Childhood Caries
Clinical Evaluation of High Viscosity Glass Ionomer Strip Crowns in Primary Maxillary Incisors
The aim of this study was to evaluate the clinical success of modified celluloid strip crown restorations applied using interim therapeutic restoration and high-viscosity glass ionomer cement to the maxillary anterior teeth of…
- Trial name
- NCT05838469
- Testing
- Pediatric Strip Crown and High Viscosity Glass Ionomer Cement
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Dental Implant Failed
Single Crown Supported by Short Implant Versus Standard Implant in Conjunction With Maxillary Sinus Floor Augmentation.
Implant placement in the posterior part of the maxilla is frequently compromised due to atrophy of the alveolar process. Therefore, alveolar ridge augmentation is frequently necessary before or in conjunction with implant…
- Trial name
- NCT04518020
- Testing
- 40 patients will be randomly allocated to short implants and standard implants in conjunction with MSFA
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Aalborg University Hospital
Dental Enamel Hypomineralization
Clinical Success of Stainless Steel Crowns Applied Using Different Cements
The main question of the study was to evaluate the one-year clinical success of SSc bonded with two different cement types in MIH teeth with excessive material loss.
- Trial name
- NCT06318520
- Testing
- Use of Calcium silicate based resin cement and resin modified glass ionomer cement
- Where
- Turkey (Türkiye)
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Afyonkarahisar Health Sciences University
Gummy Smile
Effect of Clinical Crown Lengthening Surgery and Botulinum Toxin A Injection in Gummy Smile Treatment
Background: The demand for beauty is increasing in society as everyone is looking for cosmetic improvement, including gummy smile correction.
- Trial name
- NCT05057286
- Testing
- Clinical crown lengthening surgery
- Where
- Vietnam
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Medicine and Pharmacy at Ho Chi Minh City
Gingival Recession, Localized
Gingival Response and Marginal Adaptation of Zirconia Crowns With Two Subgingival Margin Designs
The aim of the study is to evaluate the effect of feather edge finish line and deep chamfer finish line on gingival position, bleeding on probing and marginal adaptation.
- Trial name
- NCT04729569
- Testing
- Feather edge finish line preparation, Deep chamfer finish line preparation
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Clinical Performance, Patient Satisfaction
One Year Clinical Evaluation of Pressed BioHPP Polyether Ether Ketone (PEEK)-Based Versus Zirconia-Based Single Crowns
The clinical performance (using the modified Ryge criteria) and patient satisfaction ( using VAS questionnaire) of pressed BioHPP PEEK based posterior single crowns compared to zirconia based crowns are questionable as the peek…
- Trial name
- NCT03697005
- Testing
- BioHPP PEEK single posterior crowns, zirconia-based single posterior crowns
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Cairo University
Partial Coverage Restoration
Clinical Outcomes of Zirconia-reinforced Lithium Silicate Partial Coverage Crowns Compared to Lithium Disilicate Partial Coverage Crowns
The purpose of this randomized controlled clinical trial is to evaluate the clinical outcomes of Partial Coverage Restorations fabricated with zirconia-reinforced lithium silicate ceramic system compared to partial coverage…
- Trial name
- NCT02861729
- Testing
- Vita Suprinity, IPS e.max
- Where
- Egypt
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Cairo University
Endodontically Treated Teeth
Clini Asses of Retentn,Pt Satisfactn and Recurrent Caries of Endocrs Versus Post Crs Using Reinforced Lithium Silicate
Coronal retention of the restoration of RCT teeth is usually compromised, thus intraradicular posts combined or not with core material may be required.
- Trial name
- NCT03713918
- Testing
- Reinforced lithium silicate endocrowns, Post retained reinforced lith silicate crn
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Cairo University
Aesthetic Outcome of Crowns on Implants
Evaluation of the Aesthetic Outcome of Lithium Disilicate (e.Max) All Ceramic Crowns on Titanium Implant Abutments in the Aesthetic Zone After Different Color Masking Approaches
Implants have become the perfect solution for replacement of missing single teeth, partial or even complete edentulism.18 However, the dilemma of anterior implant-supported prosthesis is still not quite solved.19-21 Implant…
- Trial name
- NCT03686267
- Testing
- opaqued titanium abutments, lithium disilicate coping (high opacity), titanium abutment with no color masking
- Where
- Egypt
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Cairo University
Impacted Tooth
Impacted Tooth With Immediate Implant Placement
This is a prospective study, in which there are involved four clinical cases of surgical extraction of impacted maxillary canines followed by immediate implant placement and immediate screw-retained temporary crown using a…
- Trial name
- ImmediateIMP (NCT07456553)
- Testing
- Implantology
- Where
- Italy
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Bari Aldo Moro
Partial-edentulism
One-piece and Two-piece Zirconia Abutments in Single Implant Crowns in Esthetic Region
The goal of this clinical trail is to evaluate the clinical, radiological and immunological outcomes of the one-piece zirconia abutments (OPZAs) and two-piece zirconia abutments (TPZAs) with friction-fitted titanium bases in…
- Trial name
- NCT05583123
- Testing
- restored abutment (OPZAs), restored abutment (TPZAs)
- Where
- China
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Dental Implant
Longitudinal Study of Dental Implant Therapy in HIV Positive Patients
The purpose is to place implants in HIV positive and HIV negative patients then follow patients over 3 years period of time to evaluate how well dental implants perform in HIV positive patients versus HIV negative patients.
- Trial name
- NCT01211288
- Testing
- Astra implants
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Proximal Contacts, Zirconia Crowns
Proximal Contact Tightness of Zirconia Crowns: Digital Intraoral Scanning vs Conventional Impressions
We will be comparing the proximal contacts of zirconia crowns and adjacent natural teeth in two groups. One receiving crowns fabricated via digital intra oral scanning means.
- Trial name
- PCT (NCT07142746)
- Testing
- Digital intra oral scanning, Conventional impression
- Where
- Pakistan
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Armed Forces Institute of Dentistry, Pakistan
Dental Caries in Children
3D-printed Crowns Versus Zirconia Crowns for Primary Molars
The aim of the present study is to compare between 3D-printed crowns and prefabricated zirconia crowns for restoring pulpally-treated primary molars regarding the following aspects: 1.
- Trial name
- NCT06068244
- Testing
- 3D printed crowns, Zirconia crowns
- Where
- Egypt
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Carious Primary Molars
Preparation Time Of Bioflx Crowns Compared To Zirconia Crowns On Primary Molars
This study aims to evaluate and compare the preparation time required for Bioflx crowns versus zirconia crowns on primary molars through a randomized clinical trial.
- Trial name
- NCT06968767
- Testing
- bioflx crown, zirconia crown
- Where
- Egypt
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Cairo University
Covid19
Biomarkers of Trained Immunity Following MMR Vaccination
This is a substudy of NCT04333732. The goal of this sub-study is to identify and characterize biomarkers of trained immunity by measuring, in vitro, immune responses to heterologous products, especially viral associated products…
- Trial name
- NCT04646239
- Testing
- Heterologous stimuli, Neutralization assay
- Where
- United States
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Carious Teeth
Clinical Efficacy of Preformed Pediatric Zirconia and Metal Crown
The study was planned to evaluate and compare the clinical success of prefabricated stainless steel crowns and zirconia crowns used in the primary molars.
- Trial name
- NCT05910905
- Testing
- Prefabricated pediatric zirconia crown group, Prefabricated stainless steel crown group
- Where
- Turkey (Türkiye)
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- Marmara University
Child, Only, Quality of Life
Evaluation of The Effect of Crowns Applied With Hall Technique on Occlusion
This study aims to evaluate and compare the change on occlusion after placing stainless steel crowns (SCC) using Hall technique and conventional technique in children between the ages of 5-8.
- Trial name
- NCT06220383
- Testing
- Hall technique, Conventional technique
- Where
- Turkey (Türkiye)
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Izmir Katip Celebi University