Clinical trials: Prosthesis Failure
Prosthesis Survival
Lithium Disilicate Glass-ceramic Versus Hybrid Ceramic Superstructure Materials on Implant Stability
The aim of this study is to assess the effect of the newly introduced (hybrid dental ceramic) superstructure materials, Vita Enamic versus IPS Emax on implant stability, patient satisfaction and crestal bone loss.
- Trial name
- RCT (NCT02931903)
- Testing
- Vita Enamic (hybrid dental ceramic), lithium disilicate glass-ceramic
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Cairo University
Dental Prosthesis Failure, Dental Prosthesis Complication
Clinical Study of a 3D Shaded Zirconia for Chairside CAD/CAM Restorations
This investigation will be a prospective, longitudinal clinical trial to study the clinical performance of a new monolithic, 3D shaded zirconia material for computer assisted design and computer assisted machining for chairside…
- Trial name
- NCT06713577
- Testing
- CEREC Cercon 4D
- Where
- United States
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- Dentsply Sirona Implants and Consumables
Survival, Prosthesis, Bone Loss
Osteotome-mediated Sinus Floor Elevation With or Without Grafting Material
Implant placement in the posterior part of the maxilla is frequently compromised or impossible due to atrophy of the alveolar process and pneumatisation of the maxillary sinus.
- Conditions
- Survival, Prosthesis, Bone Loss, Patient Satisfaction
- Trial name
- NCT04618900
- Testing
- Sinus floor elevation with a grafting material
- Where
- Denmark
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Aalborg University Hospital
Prosthesis Durability
Accuracy of Conventional and Digital Impression Techniques Used for Maxillary Hybrid Prosthesis
evaluation and comparison of the accuracy of conventional and digital impression for full arch screw retained prosthesis for edentulous maxilla.
- Trial name
- NCT05321589
- Testing
- impression techniques for implant used for maxillary screw retained hybrid prosthesis
- Where
- Egypt
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Prosthesis Survival
Patient Satisfaction and Peri-Implant Tissue Success of Hybrid Ceramic Versus E-Max Superstructures
In patients receiving implants in the esthetic zone, would the use of new Nano hybrid ceramic crown material (Crystal Ultra) improve esthetic patient satisfaction and peri-implant tissue success when compared with Lithium…
- Trial name
- NCT02941575
- Testing
- Crystal Ultra, All ceramic
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Cairo University
Prosthesis Survival
Implant Retained CAD-CAM Ceramic Crowns
Newly available ceramic CAD-CAM blocs containing a screw channel for chairside-made crowns to be adhesively cemented to a TiBase abutment and screw-retained to an implant are appealing to the clinician, considering the time…
- Trial name
- RCT-Scherrer (NCT04773873)
- Testing
- PFM Crowns on gold coping cast-on, hybrid abutment lithium disilicate crown, hybrid abutment ceramic polymer infiltrated crown
- Where
- Switzerland
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Susanne Scherrer
Prosthesis Durability
Effect of Geometric Modifications of Implant Scan Bodies
The aim of this clinical study will be the effect of geometric modifications of implant scan bodies compared to conventional transfer techniques on passivity of all on four mandibular restorations
- Trial name
- NCT06040385
- Testing
- Implant supported hybrid prosthesis
- Where
- Egypt
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Survival, Prosthesis
Clinical Assessment of All Ceramic Single-retainer Using Upper Canine as Abutment With Minimum Preparation on the Lingual Surface, to Replace the Upper Lateral Incisor and Will be Compared With the All Ceramic Single-retainer Using Upper Central Incisor.
The Intervention Will be All Ceramic Single-retainer Resin Bonded Fixed Partial Denture Using the Upper Canine as Abutment With Minimum Preparation on the Lingual Surface Within the Enamel Providing Maximum Area for the Retainer…
- Trial name
- NCT05812066
- Testing
- all ceramic single-retainer resin bonded fixed partial denture
- Where
- Egypt
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Cairo University
Edentulous Mouth, Dental Prosthesis Failure
Retrospective Clinical Evaluation of Nano-hybrid-composite Denture Teeth
This retrospective study investigates the longevity of dentures with SR Phonares II teeth after a wearing period of more than 10 years.
- Trial name
- NCT05599269
- Testing
- Examination of dentures with SR Phonares II teeth
- Where
- Liechtenstein
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- Ivoclar Vivadent AG
Prosthesis Durability
Impact of Mandibular Overdenture Base Construction Techniques on Assessment of Occlusion
This within patient study will be conducted to compare between two different construction techniques (CAD-CAM Milled and Conventional techniques) of 4-implant-assisted complete mandibular overdenture bases regarding the digital…
- Trial name
- NCT06080815
- Testing
- CAD/CAM Complete denture
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Failure, Prosthesis, Dental Prosthesis, Implant-Supported
Clinical Performance of All-on-4 PEEK and Conventional Prostheses
The all-on-4 treatment approach for completely edentulous mandible is a proven concept. However, there are still issues regarding the use of metal substructure to support the prostheses such as allergy, metallic taste, and…
- Conditions
- Failure, Prosthesis, Dental Prosthesis, Implant-Supported, Survival, Prosthesis, Complete Edentulism
- Trial name
- NCT06388395
- Testing
- Accuracy of full-arch surgical guides, Survival and complications of the prostheses, Survival and complications of the implants
- Where
- United Arab Emirates
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Sharjah
Failure of Dental Implant Due to Lack of Attached Gingiva, Failure of Dental Prosthesis Causing Loss of Dental Implant
Evaluation Clinical and Radiographic Images in Dental Implants Rehabilitated With Overdentures
The control of biofilm around implants is critical to the success of the implant rehabilitation of edentulous jaw with overdentures, and it is the dentist's duty to inform and guide patients, and keep their maintenance in order…
- Trial name
- NCT02511977
- Testing
- peri-implant examination
- Where
- Brazil
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Universidade Metropolitana de Santos
Dental Implant Failure, Periodontal Bone Loss
A Prospective Analysis of Failures of Oral Implants
The purpose of this prospective clinical trial is to investigate and identify factors associated with the failure of dental implants within the population rehabilitated with dental implants at the Folktandvården Specialistklinik…
- Trial name
- NCT02374216
- Testing
- Insertion of dental implants
- Where
- Sweden
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Malmö University
Prosthetic Tissue Defect, Dental Prosthesis Complication
Study of Periodontal Tissues in Fixed Prostheses on Natural Teeth
When the tooth is severely compromised, it needs a prosthetic crown. The tooth is prepared to allow the housing of the prosthetic crown without difficulty.
- Conditions
- Prosthetic Tissue Defect, Dental Prosthesis Complication, Dental Prosthesis Failure, Tissue Injury
- Trial name
- NCT04151316
- Testing
- crown preparation, vertical preparation, horizontal preparation
- Where
- Italy
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Università Vita-Salute San Raffaele
Prosthesis Durability
Evaluation of Locator Versus TITACH Attachment for Mandibular Overdentures.
The purpose of this randomized controlled clinical study was to evaluate the locator and TITACH attachments used for retaining mandibular 2-implant overdentures regarding retention , bite force and implant marginal bone loss…
- Trial name
- NCT06228859
- Testing
- overdentures with different attachments
- Where
- Egypt
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Bone Loss in Jaw, Dental Implant Failure Nos
Marginal Bone Loss Around Mandibular Implant-retaining Overdentures and Implant Supported Fixed Hybrid Prosthesis
Few if any studies have compared marginal bone loss (MBL) around implant-retaining overdentures (2 implants with locators) versus implant supported fixed hybrid prosthesis (over 4 implants) in the mandible.
- Conditions
- Bone Loss in Jaw, Dental Implant Failure Nos, Dental Implant Failed
- Trial name
- NCT06488599
- Testing
- Peri-apical radiographs on the implants
- Where
- Lebanon
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Saint-Joseph University
Occlusion, Prosthesis Durability
Abutment Analysis of Metallic Denture Frameworks in Mandibular Kenedy Class III Cases
This study is aimed to compare CAD/CAM (digitally fabricated) metallic partial denture frameworks to conventionally fabricated metallic partial denture frameworks in mandibular Kennedy class-III arches in terms of abutment health…
- Trial name
- NCT07215208
- Testing
- CAD/CAM metallic partial denture frameworks, Conventional metallic partial denture frameworks
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Cairo University
Partial Edentulism, Disorder of Prostheses and Implants
Survival of Implant-Supported All-Ceramic Prostheses
The purpose of this research study is to identify reasons that cause an all-ceramic bridge to fracture which include the thickness of the bridge material, the type of bridge material and the bite force of the person.
- Conditions
- Partial Edentulism, Disorder of Prostheses and Implants, Dental Prosthesis Failure
- Trial name
- NCT01729858
- Testing
- Ceramic-Ceramic, Metal-Ceramic
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- University of Florida