Clinical trials: Tooth Spacing
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
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
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
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
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
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
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