Clinical trials: Tooth Spacing
Angle Class I Malocclusion, Dental Crowding
Clinical Performance of Direct-Printed Versus Thermoformed Aligners
The goal of this study is to evaluate and compare the clinical effectiveness of in-office directly 3D-printed clear aligners versus conventional multilayered thermoformed aligners.
- Conditions
- Angle Class I Malocclusion, Dental Crowding, Tooth Spacing
- Trial name
- NCT07637227
- Testing
- Direct-Printed Aligner, Thermoformed aligner
- Where
- 3 sites in Iraq
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
Edentulous
Longitudinal Efficacy of Dental Implants in Anterior Areas
Dental implants are used in dentistry to reestablish function and appearance to areas of the mouth where natural teeth are missing.
- Trial name
- Maximus (NCT00641277)
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Tooth Wear
Analysis of Enamel Wear Against Ceramic Restorations
1. To characterize the microstructure (fracture toughness, particle size of ceramic, and inter-particle spacing) of three ceramic materials 2.
- Trial name
- NCT00223405
- Testing
- crown placement
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center at San Antonio
Spacing of Anterior Teeth
Color Stability of Sectional and Full Glass Ceramic Laminate Veneer
The aim of the study is to evaluate the color stability of full and sectional glass ceramic laminate veneer as esthetic failure is reported to be common failure in laminate following clinical service.
- Trial name
- NCT06470945
- Testing
- Glass ceramic sectional veneer, Glass ceramic laminate veneer
- Where
- Egypt
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- October University for Modern Sciences and Arts
Class I Malocclusion, Crowded Teeth
The Predictability of Directly Printed Versus Thermoformed Clear Aligners
The study is randomized controlled trial ...The null hypothesis suggests that there is no significant difference between actual and predicted dental movement in patients treated using direct printed aligners produced with Graphy™…
- Conditions
- Class I Malocclusion, Crowded Teeth, Spacing of Anterior Teeth, Rotation
- Trial name
- NCT07350343
- Testing
- Direct-printed aligner (Graphy), Thermoformed aligner
- Where
- Iraq
- Volunteers
- 36 people
- Sponsor
- University of Baghdad
Spacing of Anterior Teeth
Sectional Versus Full Glass Ceramic Laminate Veneers
The aim of the study is to assess the marginal adaptation, color stability and clinical performance of glass ceramic sectional veneers compared to full laminate veneers There's two null hypotheses , the first is that there is no…
- Trial name
- NCT06472180
- Testing
- Glass ceramic sectional veneer, Glass ceramic laminate veneer
- Where
- Egypt
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- October University for Modern Sciences and Arts
Single Posterior Crowns, Badly Decayed Teeth, Teeth Restored With Large Filling Restorations or Endodontically Treated Teeth
One Year Clinical Evaluation of Milled BioHPP Polyetheretherketone (PEEK)-Based Versus Metal Ceramic Single Crowns
Although the metal-ceramic system is still widely used to fabricate crowns and fixed partial dentures and is considered as the standard treatment in dentistry, aesthetic concerns have stimulated the development of new dental…
- Conditions
- Single Posterior Crowns, Badly Decayed Teeth, Teeth Restored With Large Filling Restorations or Endodontically Treated Teeth, Malformed Teeth, Malposed Teeth (Tilted, Over-erupted, Rotated, Etc.) or Spacing Between Posterior Teeth
- Trial name
- NCT03685513
- Testing
- BioHPP PEEK-based single posterior crowns, Metal ceramic single posterior crowns
- Volunteers
- 46 people
- Sponsor
- Cairo University
Diastema, Generalized Interdental Spaces
Diastema Closure and Stability: Clear Aligners vs Fixed Appliances With Laser Frenectomy
This study is a prospective 2x2 factorial randomized clinical trial designed to evaluate and compare the closure efficiency and post-treatment stability of diastema associated with generalized interdental spacing (width >= 3 mm)…
- Trial name
- NCT07778095
- Testing
- Clear Aligners, Fixed Orthodontic Appliance, Laser Frenectomy
- Volunteers
- 48 people
- Sponsor
- Sana'a University
Single Anterior Crowns, Badly Decayed Teeth
One Year Clinical Evaluation of New Gradient Technology Monolithic Zirconia (5Y-TZP/3Y-TZP) Crowns in Dental Esthetic Zone With Vertical Versus Conventional Preparation Techniques
The aim of this study is to evaluate the clinical behavior of zirconia crowns in dental esthetic zone with vertical versus conventional preparation techniques using a new gradient technology monolithic zirconia (5Y-TZP/3Y-TZP).
- Conditions
- Single Anterior Crowns, Badly Decayed Teeth, Endodontically Treated Teeth, Spacing Between Anterior Teeth
- Trial name
- NCT04738513
- Testing
- Vertical preparation technique, Conventional Preparation technique
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Cairo University
Endodontically-Treated Teeth, Spacing of Anterior Maxillary Teeth
Assessment of Lateral and Vertical Tissue Displacement Obtained by the Retraction Cord and Diode Laser
In fixed prosthodontic treatment, deflection of gingival tissues for diagnosis or making an impression is one of the important phases.
- Conditions
- Endodontically-Treated Teeth, Spacing of Anterior Maxillary Teeth, Broken Teeth Injury With Complication
- Trial name
- NCT04258696
- Testing
- diode laser, ultrapak Knitted retraction cord
- Where
- Egypt
- Volunteers
- 22 people
- Sponsor
- Cairo 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
Clinical Performance
Esthetic and Clinical Assessment of Injectable Resin Composite Technique
injectable resin composite technique will show a better clinical and esthetic performance compared to conventional layering resin composite technique in patients with multiple spacing in the maxillary anterior teeth area or not.
- Trial name
- NCT05945758
- Testing
- Injectable resin composite technique., Conventional layering technique
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Cairo University
The Present Study Aimed to Evaluate Root Parallelism in Cases of Anterior Teeth Spacing Treated With Clear Aligner Versus Fixed Orthodontic Appliances, Spacing Between Anterior Teeth
Evaluation of Root Parallelism in Cases of Anterior Teeth Spacing Clear Aligner Versus Fixed Appliances
evaluate root parallelism in cases of anterior teeth spacing treated with clear aligner versus fixed orthodontic appliances
- Trial name
- NCT06803940
- Testing
- clear aligner, orthodontic treatment
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Faculty of Dental Medicine for Girls