Digital workflow to produce CAD/CAM fixed prosthesis (Lava Plus) on dental implants (Straumann) with the use of CBCT based (flapless) Guided surgery (coDiagnostix) and Intra-oral Scanning (True Definition Scanner - 3M)

Conditions: Ontbrekende gebitselementen
Missing teeth / diasthema

Registration Number: NL-OMON38606

Lead Sponsor: Academisch Centrum Tandheelkunde Amsterdam

Brief Summary: Not available

Detailed Description: Not available

Recruitment & Eligibility

Status: Pending

Sex: Not specified

Target Recruitment: 82

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

- 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

Study & Design

Study Type: Interventional

Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>The clinical fit of CAD/CAM supra-structures based on conventional- or digital<br /><br>impressions will be judged by the restorative dentist who places the crown or<br /><br>bridge. For that reason, the dentist fills in a questionnaire on the fit not<br /><br>knowing to which group the supra-structure belonged.<br /><br>- Three outcomes are possible: perfect fit, acceptable fit and non-acceptable<br /><br>fit.</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>1. The accuracy of computer guided surgery. Measured by superimposing the<br /><br>implant positions from the planning software with the positions gathered by the<br /><br>intra-oral scan made 3 months after implant insertion.<br /><br>- Outcomes: deviation at implant apex (in mm), deviation at implant entry point<br /><br>(in mm), and angular deviation (in °).<br /><br><br /><br>2. Analyzing the dimensional changes in the treated area during the entire<br /><br>treatment period. With digital subtraction of all intra-oral scans of one<br /><br>patient the differences can be quantified in mm3.<br /><br><br /><br>3. Describing implant survival, surgical- and prosthetic complications up to<br /><br>one year after restoring the implants. The clinical use of CAD/CAM restorations<br /><br>on dental implants is thus quantified.</p><br>