In this case presentation, we introduce the Shining Aoralscan for beginner doctors who want to get into digital impressions. Proper isolation and retraction is a key element of scanning. In this demonstration we showcase how a new user can easily control the operating field to deliver high quality restorations
Proper isolation and retraction is key for all intra-oral scanners. In this video, you can appreciate how the upper and lower arches were isolated, the margins were exposed with retraction cord and imaged with the shining 3d aoralscan
To date, the literature and research clearly points out that full arch scans with edentulous arches are prone to inaccuracies. That’s because we have never had a way to measure and verify models while scanning. There are two features unique to the Medit i500, namely the reliability map and the artificial intelligent implant suprastructure identification system. Individually, they do not provide much information with regards to accuracy, but if you understand how they work, you can utilize them to assess accuracy while you are scanning edentulous arches.
We proved the validity of this concept by utilizing these two features by incorporating a scan from the imetric Icam4D scanner and merging its data with the IOS to render a perfect match. Details are posted for our users in the Imaging Implants Section of our tutorial liabrary
This is a preview of a single unit case that was scanned using the Artificial Implant Suprastructure Identification System of the Medit Software. To see the full case follow this link
Hydroflouric Acid Etched Treated Scanbody Surface makes Intra-Oral Scanning much easier for all dental scanners. Apply a coat of HF for a mere 10 seconds and rinse off.
In this clinical case a patient lost a pre-existing crown. The remaining tooth structure had recurrent decay and a new crown was warranted.
After anesthesia was administered, the clearance from opposing dentition was assessed. The preparation was reduced to accommodate the necessary thickness of the material.
Once adequate clearance was achieved an Optragate was placed and an isolite was used to isolate the area. The preparation was scanned and then the lower arch was captured. The buccal bite was then taken to along the arches together
With Meditlink software, you have the option of designing the case yourself or sending it off to your partnered lab. The following video shows what happens to your case once the lab downloads the case
In this particular case, we designed our own crown and milled it with the coritec one milling machine
Once the amber lithium disilicate material was milled, its for was verified clinically. The crown was then crystallized and seated with NX3 resin cement
Photogammetry has set the highest standard for full arch accuracy in digital dentistry for edentulous patients with multiple implant fixtures. An easy scan in under 15 seconds captures enough detail on scanbodies that help the software capture the location of the fixtures. Conversely, Intra-Oral Scanners (IOS) do not garner support for most of the literature that is currently published in dental journals. Scan paths can dictate the outcome of 3D model and determine how correctly it replicates the intra-oral condition. The same scan can render a variety of results and models based on the user and the direction the scans are taken. Simply stated, the user is control over the final product.
To use the ICam 4D scanner you must first calibrate the machine with a plate immediately prior to the intra-oral scan capture. There are specific reference points that the camera and software recognizes and after you capture about a dozen landmarks, you are ready for an intra-oral scan
After the camera is calibrated, the patient, or in this demonstration case, the model with Multi-Unit Abutment analogs is mounted with ICam Reference Bodies that are shaped like dominos. They can attach to the multiunit abutment or directly to the implant fixture (available soon in the USA).
The markers are captured by the device in the software with multiple identification marks, ideally 10 marks on each scan post. This data is then exported as an stl file that has all the locations of each cylinder preserved. This whole process just takes minutes. Most people just utilize this device for full arch impressions so they can bypass the verification jig for large cases. Here, we use it to assess the accuracy of the medit i500 ios to provide cross arch accuracy if doctors follow our protocols for imaging, which utilizes the reliability map as a guide for imaging. When then utilize the Artificial Intelligent Implant Suprastructure Identification Software to merge and evaluate the accuracy of the ios scan.
There are a lot of ways one can introduce errors into a full arch scan with any ios, but the medit’s powerful features that include the reliability map and the AI tool separate it from all other scans that do not allow you to assess the accuracy of your scan while you are imaging. You can only do so with the fabrication of a verification jig
In this clinical presentation, we demonstrate the removal of a crown that has recurrent decay. The bleeding tissue was managed with a double cord technique and expasyl and the margin was captured with the medit i500. The margin was also defined in the native imaging software which allows the user to visualize the detail before designing it or send it off to the lab. Once the case is transferred to cad software, the designed margins carry through and there is an opportunity to modify it
We scanned with the medit i500, designed with exocad and milled with coritec. after try-in, we scanned the restoration in the bluephase and then merged it with the design in exocad to see how well our material, or design, and our margins measured up against the proposal. we also documented the fit clinically and with radiographs. you can download the 3d models of the case and compared them yourself
In this video we show how to you can digitally pour up the intaglio of a denture scan with the medit software where you scan in the impression mode, “reverse normal”, process the case and the add a base to it. You can then immediately send it to a printer
We scanned patient 4 different ways. HD and regular D and different filters and focal lengths. HD leaves the glitter free floating that scares new comers but builds nice models. really though if you retract everything well your imaging speed doesn’t change that much at all between filter 1 or 3. you can see how the mirror fogs up and slows me down just when i’m under patients nose. no big deal. just retract the lips and tongue and follow our imaging principles and you can take full arch scans in under a minute no problem
Full arch scan with filter 1 and HD mode
Full arch scan with filter 1 and regular mode
Full arch scan with filter 3 and focal length of 21
Full arch scan with filter 3 and focal length of 18
In this video we demonstrate some of the most common problems associated with second molar impressions. Usually the distal margins can be blurred by the presence of hemorrhaging or soft tissue. In this particular case, we use the tip of the camera to displace the tissue and digitall correct an area for better accuracy. The isolite systemisolite systemisolite system does a great job controlling the tongue and the lips and with proper retraction you can image a quadrant in very little time
The second most commong problem is a change in the vertical dimension before and after we prepare the last vertical stop in the arch. We advocate that you take two bites; one before preparing the distal extension and one after you prepare it. Comparing the two buccal bites will let you know if you will have issue with your vertical dimension and allow you to reduce the post op adjustments
In this video we demonstrate a simple premolar case that is prepared and imaged with the Medit i500, designed in the cad software named exocad and then milled with the imes icor coritec one machine. Pay attention to the order and sequence of events and how we leverage anesthesia time with scanning time.
We have a large library of instructional videos on our site that can be found on our support page that can help you learn everything there is to know about the Medit i500
Taking impressions, digital or analog way, was one of the greatest hassles in implant dentistry. we can now image the margins of the implant suprastrucure OUTSIDE the mouth, merge it with the intra-oral condition, and mark the margins on the digital file as opposed to getting hemostasis and tissue retraction in difficult situations..
medit i500 takes one of the most complex and error prone situations and simplifies it, whether you send the case to the lab or do in office restorations.
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