Intraoral Scanning Accuracy in the Edentulous Mandible

Status Active, not recruiting

Clinical Trial Summary

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 captured. An accurate scan is also made more difficult by edentulous jaw sections, as these provide the scanner with few landmarks for proper three-dimensional image composition. With respect to both edentulous and edentulous patients with dental implants, the currently available literature does not provide a firm basis for deciding whether such patients can already be scanned with sufficient accuracy. It is considered problematic in this context that the findings on digital impression accuracy, regardless of whether teeth or implants have been scanned, are based almost exclusively on the results of in vitro studies. Conclusions about the accuracy of intraoral scanners under clinical conditions with moving patients and limited accessibility to the structures to be imaged, especially in the presence of blood, saliva or sulcus fluid, are extremely limited based on these data. Therefore, the aim of this study is to determine the clinical scanning accuracy of two current intraoral scanning systems for the three-dimensional acquisition of the position of two interforaminal dental implants in the edentulous mandible. The influence of artificial landmarks to achieve increased scan accuracy will also be tested.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05032170
Study type	Observational
Source	University Hospital Heidelberg
Contact
Status	Active, not recruiting
Phase
Start date	July 1, 2022
Completion date	December 31, 2023

View Details

See also
Status	Clinical Trial	Phase
Active, not recruiting	`NCT05355792` - Multicenter Study to Evaluate the Clinical Outcome of the OmniTaper EV Implant in Single Tooth Restorations	N/A
Terminated	`NCT00748670` - Treatment With Fixture Microthread™ in Patients With Poor Bone Quality and no Teeth in the Upper Jaw, When Using Two-Stage Surgery	N/A
Completed	`NCT04873219` - Milled Versus Printed CAD/CAM Complete Dentures	N/A
Active, not recruiting	`NCT04545840` - Prospective Neodent® Zirconia System Study
Completed	`NCT00922935` - Comparison of Early and Late Loading in the Edentulous Upper Jaw Using Cresco Prosthetic System on Straumann Implants	Phase 4
Completed	`NCT00959530` - Comparison of Lingualized and Full Bilaterally Balanced Articulation	N/A
Completed	`NCT00905840` - A Study to Treat Patients With Edentulous Mandibles With Two Straumann 3.3mm Diameter Bone Level Implants	N/A
Completed	`NCT00711022` - Study on ASTRA TECH Implant System, OsseoSpeed™ Implants in Patients Missing All Teeth in the Upper Jaw, Restored With Provisional Teeth Within 24 Hours	N/A
Terminated	`NCT00295126` - REPI : a Randomized Open Label Trial Evaluating the Use of APC in Pre-Implantation Reconstruction of Maxilla	Phase 2/Phase 3
Recruiting	`NCT03957265` - Prospective Observational Study of SynCone® Concept	Phase 1
Completed	`NCT01909999` - Release of Osteogenic Markers in Immediately and Non-loaded Dental Implants	N/A
Completed	`NCT00901017` - Comparison of Synthetic Bone Substitute and a Bovine-derived Xenograft in Horizontal Bone Augmentation	N/A
Completed	`NCT01641198` - An Implant With an Acid-etched Fixture Surface and Internal-hex Collar May Achieve Greater Osseointegration.	N/A
Completed	`NCT03862482` - Peri-Implant Healing Around Two Different Machined-Collar Designs After 25 Years of Function	N/A
Completed	`NCT01878331` - Long-term Study to Evaluate Different Dental Implant Alloys in Straumann 3.3mm Diameter Bone Level Implants
Completed	`NCT02418117` - Accuracy of Computer Guided Implant Surgery	N/A
Completed	`NCT02107612` - Randomized Study For Minimally Invasive Splinted Implants	N/A
Active, not recruiting	`NCT05007691` - Comparative Study of Maxillary and Mandibular Splints Used for the Treatment of Masticatory Muscle Parafunction (FEA)	N/A
Active, not recruiting	`NCT04328116` - Study of Neodent Implantable Devices of GM Zygomatic Line
Completed	`NCT05709236` - Digital Versus Conventional Full-arch Implant Impression in Maxillary Screw- Retained Implant Prosthesis	N/A