Clinical trials: Dental Impressions
Jaw, Edentulous, Dental Impression Techniques
Intraoral Scanning Accuracy in the Edentulous Mandible
Today, tooth- or implant-supported single crowns and short-span fixed partial dentures can be fabricated on the basis of an intraoral scan, but the scanning accuracy decreases with increasing length of the jaw section to be…
- Trial name
- NCT05032170
- Where
- Germany
- Volunteers
- 16 people
- Sponsor
- University Hospital Heidelberg
Edentulous Jaw
Accuracy of Digital Implant Impression
This study aims to investigate the accuracy of complete-arch digital implant impression using newly designed scan bodies with extensional structure.
- Trial name
- NCT04627649
- Where
- China
- Volunteers
- 15 people
- Sponsor
- Sun Yat-sen University
Edentulous Jaw, Dental Implants
Accuracy Evaluation of Implant Impressions: A Prospective Study
The aims of this clinical study are: 1) to compare the accuracy of conventional versus digital impression techniques for implant impressions; 2) to assess the passive fit of the prosthesis constructed from the most accurate…
- Conditions
- Edentulous Jaw, Dental Implants, Edentulous Mouth
- Trial name
- NCT06393582
- Testing
- Accuracy of full-arch implant impressions, Accuracy of full-arch implant impressions using intraoral scanners
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Sharjah
Dental Prosthesis, Implant-Supported
Clinical Evaluation of the Effect of the Scanning Pattern on Complete-arch Implant Scans
This clinical trial aims to analyze and compare the influence of different scanning strategies (zigzag with conventional scan body, circumferential with conventional scan body, surface blocking with conventional scan body, zigzag…
- Trial name
- strategiesIOS (NCT05985226)
- Testing
- intraoral scan
- Where
- Spain
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Universidad Complutense de Madrid
Dental Impression Technique
Digital Intraoral Scanning With and Without Prefabricated Landmarks Versus Conventional Impression Technique
The aim of this clinical trial is to evaluate the accuracy of digital implant impressions with or without prefabricated landmarks between scan bodies compared to conventional impression technique in mandibular full-arch implant…
- Trial name
- NCT06592066
- Testing
- Digital Impression by using Intraoral Scanning of Scan Bodies, Digital Impression by using Intraoral Scanning of Scan Bodies with Prefabricated Landmarks, Splinted Open Top Tay Conventional Impression Technique
- Volunteers
- 12 people
- Sponsor
- Ain Shams University
Partially Edentulous Maxilla, Mandible
Accuracy of Scannable Healing Abutments for Implant Impressions
This prospective controlled clinical trial evaluates the three-dimensional positional accuracy of implant-level impressions obtained using scannable healing abutments compared with conventional open-tray and closed-tray…
- Trial name
- NCT07393269
- Testing
- Digital implant impression using scannable healing abutments, Open-tray implant impression, Closed-tray implant impression
- Where
- Egypt
- Volunteers
- 22 people
- Sponsor
- Sherif Aly Sadek
Dental Impression Technique
Digital Versus Conventional Impression Techniques in Children
The impression is a necessary step for the orthodontic diagnosis. Digital impression has recently been introduced by means of intraoral optical scanners.
- Trial name
- NCT04220957
- Testing
- Digital Impression Technique, Conventional Impression Technique
- Where
- Italy
- Volunteers
- 24 people
- Sponsor
- University of Florence
Endodontically Treated Teeth, Missing Teeth
Impression & Prosthesis Quality Made From Different Polyvinylsiloxane Impression Techniques
This randomized controlled trial is to clinically assess and compare impression quality of polyvinylsiloxane impression material using one step (experimental) and two step (control) impression techniques and its effect on…
- Conditions
- Endodontically Treated Teeth, Missing Teeth, Discoloration, Tooth, Prosthesis Failure, Dental
- Trial name
- NCT05938400
- Testing
- Polyvinylsiloxane impression with different techniques
- Where
- Pakistan
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Dow University of Health Sciences
Tooth Wear, Glass Ionomer Cements
Clinical Evaluation of the Performance of a Newly Developed Glass Ionomer Restorative for Posterior Restorations in an Adult Population
STUDY DESIGN Post market clinical follow-up; pilot study, prospective, controlled, randomized, split-mouth, blinded evaluation INTRODUCTION AND PURPOSE OF STUDY Continuous advancements in the field of glass ionomers have led to…
- Trial name
- NCT06275581
- Testing
- Ketac Universal Aplicap Glass Ionomer Restorative (3M) (test group), Ketac Molar Quick Aplicap Glass Ionomer Restorative (control group)
- Where
- Spain
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- Universidad Europea de Madrid
Denture, Complete
Conventional Versus Neutral-Zone CAD/CAM Dentures Restoring Mandibular Resorbed Ridges
The study is a within-subject randomized clinical trial that will compare and evaluate patients' satisfaction and digitally analyze denture space Confines. Group I: CAD/CAM.
- Trial name
- CAD/CAM (NCT05895292)
- Testing
- CAD/CAM Milled Methacrylate Complete Removable Dentures based on bone-support concept., CAD/CAM Milled Methacrylate Complete Removable Dentures based on neutral zone concept.
- Where
- Egypt
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Wear, Tooth, Wear, Occlusal
Intraoral Impressions for Assessment of Wear of Teeth and Restorative Materials.
Suitability of intraoral impressions for assessment of wear of teeth and restorative materials over 60 months, using the gypsum replica method and 3-D laser scanning: perspective clinical and laboratory evaluation.
- Conditions
- Wear, Tooth, Wear, Occlusal, Wear, Restoration
- Trial name
- GIC (NCT03624894)
- Testing
- impression
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Edentulous Jaw, Dental Prosthesis, Implant-Supported
Accuracy of Standard and Geometric Pattern-Assisted Digital Scanning for Full-Arch Implant Prosthesis Frameworks
This clinical trial aims to compare three different impression techniques used to fabricate full-arch implant-supported dental prostheses.
- Conditions
- Edentulous Jaw, Dental Prosthesis, Implant-Supported, Prosthodontics, Dental Implantation, Endosseous
- Trial name
- GPA Scan (NCT07065487)
- Testing
- Intraoral Scanner - Standard Protocol, Intraoral Scanner with Geometric Reference Pattern, Conventional Splinted Impression Technique
- Where
- Egypt
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Mirna ashraf anis heneen
Dental Anxiety
Digital Versus Conventional Impression on Discomfort and Dental Anxiety Among Preschoolers
Background: Taking alginate impressions for preschoolers is challenging and might be disturbing for them. Therefore, intraoral scanners are suggested as a better alternative to the conventional alginate impression.
- Trial name
- NCT06623851
- Testing
- Intraoral scanner, Alginate impression
- Where
- Egypt
- Volunteers
- 66 people
- Sponsor
- Hams Hamed Abdelrahman
Dental Implants, Dental Impression Materials
Splint Versus Non-splint Implant Impressions
The purpose of this study is to evaluate the effectiveness of heavy Vinyl PolySiloxane (VPS) and splinted implants impression (Study Group, SG) technique versus plaster implant impression (Control Group, CG) technique, in 12…
- Conditions
- Dental Implants, Dental Impression Materials, Dental Impression Techniques
- Trial name
- NCT01104363
- Testing
- Snow white plaster 2, Primopattern LC gel + PVS
- Where
- 2 sites in Italy
- Volunteers
- healthy volunteers welcome
- Sponsor
- Hospital San Pietro Fatebenefratelli
Dental Implant Failed
Comparison of Conventional Impressions, Intraoral Scanners and Digital Photogrammetry for Full-arch Implant Prosthesis.
The aim of this clinical trial is to compare implant-supported definitive impressions in edentulous patients (mandible or maxilla) with 4 to 8 osseointegrated implants.
- Trial name
- NCT06570499
- Testing
- Implant impression
- Where
- Belgium
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire de Liege
Osseointegration Failure of Dental Implant
Immediate Loading and Fully Guided Surgery: Single Implants
To evaluate the overall treatment outcome of single implants installed with the assistance of fully guided-surgery, submitted to immediate loading with restorations fabricated with the help of intraoral scanning, during a 1-year…
- Trial name
- NCT04061694
- Testing
- Immediate loading, fully guided surgery and 3D printed restoration, Immediate loading
- Where
- Sweden
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Folktandvården Skåne AB
Dental Impression Techniques
Intraoral Scanning Versus Alginate Impressions in Dental Students
Dental impressions are used to create a record of a person's teeth and oral structures. Conventional impressions are made using impression material placed in a tray, whereas digital impressions are obtained using an intraoral…
- Trial name
- NCT07705009
- Testing
- Conventional Alginate Impression, TRIOS 3 Intraoral Scanner, Medit i700 Intraoral Scanner
- Where
- Vietnam
- Volunteers
- 171 people, healthy volunteers welcome
- Sponsor
- Hue University of Medicine and Pharmacy
Computer Guided Implant
Assessment of the Accuracy of Surgical Guide Designed From Digital Impression, Dental Model Scanning Using CBCT and Desktop Scanner in Computer Guided Implantology:
Assessment of the Accuracy of Surgical Guide Designed from Digital Impression, Dental Model Scanning using CBCT and Desktop Scanner in Computer Guided Implantology: Randomized Clinical Trial.
- Trial name
- NCT03730506
- Testing
- Intra oral scanner
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Cairo University
Accuracy of Surgical Guide in Computer Guided Implantology
Assessment of the Accuracy of Surgical Guide Designed From Dental Model Optical Scan Versus Impression Inversion With Markers Techniques in Computer Guided Implantology. Randomized Clinical Trial.
Dental model cast accuracy can be affected by many variables as tray material, impression material and time elapsed before pouring the impression.
- Trial name
- NCT03367949
- Testing
- Surgical guide designed from Impression inversion with markers
- Where
- Egypt
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Cairo University
Malocclusion, Malocclusion; Displaced or Missing Teeth
Effectiveness of Auxiliary Segmental Lingual Appliances in Leveling the Curve of Wilson at Second Molars
This study aims to evaluate the effectiveness of auxiliary segmental lingual appliances in leveling the Curve of Wilson at the second molars in patients undergoing labial fixed orthodontic treatment.
- Conditions
- Malocclusion, Malocclusion; Displaced or Missing Teeth, Malocclusions, Orthodontic Treatment
- Trial name
- EASLALCW (NCT06858670)
- Testing
- Auxiliary Segmental Lingual Appliances
- Where
- Vietnam
- Sponsor
- Hanoi Medical University