Clinical trials: Crowns, open to volunteers
Dental Implants
Association Between Peri-implant Tissue Health and Crown Shape: a Prospective Study
This prospective cohort study aims to investigate the associations between the morphology of single-tooth implant-supported restorations, implant-related local factors, and peri-implant tissue health.
- Trial name
- NCT07909629
- Testing
- Because this is an observational study, no treatment is assigned by the investigators for research purposes.
- Volunteers
- 100 people
- Sponsor
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Early Childhood Caries (ECC)
Zirconia Crowns Versus Extraction of Primary Anterior Teeth
Severely mutilated anterior primary teeth in preschool children are frequently managed by extraction. However, premature loss of anterior primary teeth has been associated with adverse functional, developmental and psychosocial…
- Trial name
- NCT07719478
- Testing
- Zirconia Crown, Extraction
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Passant Nagy
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
Measurement of Crown Width of Permanent Teeth
Digital Analysis of Mesiodistal Tooth Width
the goal of this cross-sectional study is to determine the digital permanent crown tooth width
- Trial name
- NCT06656000
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Cairo University
TNF Alpha
The Effect of Functional Crown Lengthening Versus Deep Margin Elevation on Periodontal Tissues
The present study will evaluate and compare the effect of functional CL and DME in the treatment of posterior teeth with class II caries clinically and on the level of TNF-α in the GCF of treated teeth.
- Trial name
- NCT07380126
- Testing
- Functional Crown lengthening, Deep Margin Elevation
- Volunteers
- 20 people
- Sponsor
- Ain Shams University
Effect of Direct Printed Aligners on Crown Movement
Crown Movement in Cases Treated With Direct Printed Aligners
This study aims to evaluate the efficiency of direct 3D printed aligners in achieving the crown movement of upper and lower incisors in patients with spacing during space closure and to compare them with the predicted tooth…
- Trial name
- DPA (NCT07273435)
- Testing
- Direct printed aligners
- Where
- 3 sites in Egypt
- Volunteers
- 23 people
- Sponsor
- Suez Canal University
Clinical, Primary Teeth
Clinical Evaluation of Bioflx Crowns in Restoring Primary Anterior Teeth
This randomized controlled clinical trial evaluates and compares the clinical success and performance of prefabricated Bioflx crowns versus conventional Celluloid strip crowns in the restoration of badly decayed or traumatized…
- Conditions
- Clinical, Primary Teeth, Restoration, Crown
- Trial name
- NCT07883187
- Testing
- Bioflx Crown Restoration (Group I), Celluloid Strip Crown Restoration (Group II)
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Tanta University
Caries Active
Bioceramic Putty Versus MTA in Pulpotomized Primary Teeth to be Covered With 3D Printed Resin Crowns Versus Stainless Steel Crown
children aged 5 to 7 years with deep carious second primary molars that require vital pulp therapy will be treated using either MTA or bioceramic putty, then will be fully covered using either stainless steel crowns or 3D printed…
- Trial name
- NCT07344038
- Testing
- Endo-sequence bioceramic putty pulpotomy, Bio MTA+ pulpotomy, Stainless Steel Crowns (SSCs)
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Alexandria University
Tooth Extraction, Tooth Fractures
Efficacy and Safety Evaluation Study of Implants With Periodontal Ligament
The goal of this clinical trial is to evaluate the efficacy and safety of periodontal ligament-integrated implants placed via residual periodontal ligament tissue in extraction sockets in adult patients (aged 18 and older)…
- Conditions
- Tooth Extraction, Tooth Fractures, Dental Caries, Tooth Dislocation
- Trial name
- NCT07302581
- Testing
- Periodontal Ligament-Integrated Implant
- Where
- 2 sites in Japan
- Volunteers
- 6 people
- Sponsor
- OrganTech, Inc.
Dental Restoration, Dental Implant
Prosthetic Outcomes and Clinical Performance of Implant Supported Zirconia Crowns
To compare biological, technical, radiographic, and patient-reported outcomes of two types of monolithic zirconia crowns screw-retained to implant.
- Trial name
- NCT06417632
- Testing
- Graded Zirconia Crown, Conventional Zirconia Crown
- Where
- Jordan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Jordan
Tooth Avulsion, Tooth Crown Fracture
Therapeutic Wavelength Nanotechnology Devices in Alveolar Preservation
After tooth extraction, a progressive alveolar bone resorption is observed. Alveolar ridge preservation consists of placing a biomaterial within the extraction socket and covering it with a membrane.
- Trial name
- APnanotecnolog (NCT07371130)
- Testing
- Socket Preservation
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Bari Aldo Moro
Altered Passive Eruption
Periodontal Tissue Stability After Surgical Correction of Altered Passive Eruption
This prospective, single-group interventional study will evaluate the stability of periodontal tissues after esthetic periodontal surgery for the correction of altered passive eruption in individuals with excessive gingival…
- Trial name
- NCT07762482
- Testing
- Esthetic Crown-Lengthening Surgery
- Where
- Brazil
- Volunteers
- 10 people
- Sponsor
- University of Sao Paulo
Removable Partial Denture, Dental Crown
A Prospective Clinical Trial Evaluating Outcomes of Surveyed Zirconia Crowns
Zirconia has shown to be a suitable substitute for metal ceramic crowns when comparing survival, biological and technical complications.
- Trial name
- NCT06564337
- Testing
- Surveyed zirconia crown
- Volunteers
- 50 people
- Sponsor
- Neena DSouza
Natural Optical Properties
Clinical Evaluation and Patient Satisfaction of Shade Matching Between Natural Teeth and Monolithic All-ceramic Crowns Fabricated From Two Materials
evaluation of color difference between zirconia reinforced lithium silicate (celtra press) VS lithium disilicate (Emax) in relation to natural tooth structure to determine which monolithic material will provide restoration with…
- Trial name
- NCT03779607
- Testing
- Celtra Press
- Volunteers
- 10 people
- Sponsor
- Cairo University
Early Childhood Caries, Dental Caries
Vertical Dimension Changes After Bioflx vs Stainless Steel Crowns in Primary Molars
this randomized controlled trial will compare Bioflx crowns and stainless-steel crowns in children with pulp-treated primary molars.
- Conditions
- Early Childhood Caries, Dental Caries, Pulp-Treated Primary Molars
- Trial name
- BIOFLX-SSC-RCT (NCT07523776)
- Testing
- Bioflx Crown, Stainless Steel Crown
- Where
- Egypt
- Volunteers
- 18 people
- Sponsor
- Cairo University
Dental Caries, Dental Occlusion
Occlusal Changes After Modified Hall Technique in Molars Affected by Molar-Incisor Hypomineralization
Molar-incisor hypomineralization (MIH) frequently affects permanent first molars and increases the risk of rapid post-eruptive breakdown and restorative failure.
- Conditions
- Dental Caries, Dental Occlusion, Pediatric Dentistry
- Trial name
- NCT07530835
- Testing
- Modified Hall Technique
- Where
- Turkey (Türkiye)
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Ankara Yildirim Beyazıt University
Gummy Smile of Altered Passive Eruption Type 1B
Accuracy of Stackable Double Periodontal Guide in Esthetic Crown Lengthening
The goal of this clinical trial is to find out if a new digital surgical guide helps dentists perform esthetic crown lengthening more accurately than the current digital guide in adults with a gummy smile caused by altered…
- Trial name
- NCT07891598
- Testing
- Stackable double digital periodontal guide, Conventional double digital periodontal guide
- Volunteers
- 30 people
- Sponsor
- Ain Shams University
Smile Esthetics, Interdental Spacing
Effect of Interdental Spacing and Crown Width Discrepancy on Smile Esthetics in Primary Dentition
This cross-sectional study aims to evaluate how interdental spacing and crown width discrepancies in primary dentition influence the perception of smile esthetics.
- Conditions
- Smile Esthetics, Interdental Spacing, Esthetic Perception
- Trial name
- NCT07480239
- Volunteers
- 234 people, healthy volunteers welcome
- Sponsor
- Marmara University
Bite Force, Stainless-steel Crown
Bite Force Recovery Following Pediatric Full Crown Restorations
A component of masticatory function is bite force. Dental caries is one factor that contributes to poor dental health, which has an overall negative influence on quality of life.
- Conditions
- Bite Force, Stainless-steel Crown, Masseter Muscle
- Trial name
- NCT07786805
- Testing
- Preformed BioFlx Crown, Preformed Stainless Steel Crown
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Tanta University
Carious Primary Molars
Comparative Evaluation of Gingival Health and Bacterial Adhesion in Bioflx vs. Zirconia Crowns on Primary Molars
The goal of this clinical trial is to evaluate the Evaluation of Gingival Health and Bacterial Adhesion of Bioflx Crowns Compared to Zirconia Crowns on Primary Molars of Bioflx crowns compared to zirconia crowns in the…
- Trial name
- NCT06933927
- Testing
- (Group A: Bioflx crowns), (Group B) : Preformed Zirconia crown
- Where
- Egypt
- Volunteers
- 28 people
- Sponsor
- Cairo University