Ontbrekende gebitselementen Missing teeth / diasthema
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: - Patients requiring dental implants for the support of fixed crowns and/or bridges in the resorbed posterior area. - Good general Health (ASA Score 1&2) - If additional bone augmentation is required this will preferably be done before the patient is included in the study.
Exclusion criteria
Exclusion criteria: - Patients under the age of 18. - Women pregnant at intake (because of CBCT taken during diagnostic phase). - Implant placement wanted on incisor locations. - Implant sites certainly requiring bone augmentation during implant placement
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The clinical fit of CAD/CAM supra-structures based on conventional- or digital impressions will be judged by the restorative dentist who places the crown or bridge. For that reason, the dentist fills in a questionnaire on the fit not knowing to which group the supra-structure belonged. - Three outcomes are possible: perfect fit, acceptable fit and non-acceptable fit. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. The accuracy of computer guided surgery. Measured by superimposing the implant positions from the planning software with the positions gathered by the intra-oral scan made 3 months after implant insertion. - Outcomes: deviation at implant apex (in mm), deviation at implant entry point (in mm), and angular deviation (in °). 2. Analyzing the dimensional changes in the treated area during the entire treatment period. With digital subtraction of all intra-oral scans of one patient the differences can be quantified in mm3. 3. Describing implant survival, surgical- and prosthetic complications up to one year after restoring the implants. The clinical use of CAD/CAM restorations on dental implants is thus quantified. | — |
Countries
Netherlands