Digital Dentistry
CEREC CAD/CAM System. (SINGLE SESSION DENTISTRY)
CAD/CAM system, which means computer-aided design and computer-aided manufacturing, is the abbreviation of the initials of the words (Computer Aided Design and Computer Aided Manufacturing). In dentistry, the use of computer technology and modern dentistry came together to bring digital dentistry. Digital dentistry is rapidly progressing towards becoming the key to the future with its modern technology.
CEREC is the abbreviation of the English words Ceramic Reconstruction. In today's dentistry, the Cerec system has become the definition identified with the Sirona company. This system, which has become known as Single Session Dentistry, has many advantages. CEREC is a unique CAD/CAM system for the realization of patient-specific all-ceramic restorations in a single appointment. With CEREC, both physicians and patients achieve the desired results quickly and safely. The patient can have a restoration (such as crown, filling, bridge, laminate) in a single session in the clinic, within half an hour or an hour or two, depending on the size or type of the restoration. One or more restorations can be made in a single session.
How it works
The system: The images obtained from the intraoral camera, which takes three-dimensional optical measurements, are processed by computer programs suitable for the purpose and sent to a very sensitive micro milling machine working with computer software; With this method, inlays, onlays, crowns (covered teeth), bridges and fixed prostheses can be produced from zirconium and porcelain blocks.
The system consists of two parts: a camera that takes images from inside the mouth and a computer unit to which these images are transferred. And a milling machine to which the restorations designed on this computer are sent. The digital image (digital measurement) taken from inside the mouth is designed in a special program in the computer environment and sent to the milling machine. The restoration prepared on the milling machine is tested in the mouth, final checks are made, and then the restoration becomes ready by baking for glazing or polishing. And the prepared restoration is placed in the mouth. 3D software provides extremely sensitive and precise results. What you see on the screen is what you get as a result of the transaction.
The CAD/CAM system provides many conveniences for patients and physicians.
1-Treatment Duration is Shortened: One-Visit-Dentistry
2-There is no Traditional Measurement Method. The Cerec CAD CAM system provides advantages for patients with nausea and/or gag reflexes that occur during the traditional measurement method. Additionally, digital impression taking minimizes the risk of infection during traditional impression taking and fitting.
3-The opportunity to use materials with high aesthetic and biological compatibility has increased. The CAD CAM system enables the safe and rapid use of products with very good aesthetic properties such as zirconia, lithium disilicate or lithium silicate.
4-The error rate in the CAD/CAM system is very low. Developments in digital dentistry have reduced the causes of failure due to the dentist and dental technician. Again; The professional knowledge, skills and experience of the physician (as in every practice) are important in these procedures.
5-CAD CAM Increased the Success and Aesthetics of Implant Treatments. Sirona's patented biogeneric tooth form design feature does not produce similar ones based on the ideal tooth forms created by industrial tool tooth manufacturers, as in previous versions. At the University of Zurich, natural-looking restorations are produced by combining the morphological features of thousands of natural teeth in a data bank and combining the data obtained with the structure of the patient's current teeth. In addition to automatically achieving this natural restoration quality, in the new version, the selection of restoration margins and contact points with the side teeth, and most importantly, the occlusal surface morphology and tooth harmony in closing are made automatically. Thus, the time spent by the user, the doctor or his assistant on the computer is reduced to just a few minutes.
It is a state-of-the-art technological product whose reliability has been proven with more than a hundred studies conducted on the CEREC system and 16 million restorations that have been in the patient's mouth for 16 years.
WHAT IS THE DENTAL TREATMENT PROCESS WITH CEREC CAD CAM DEVICE?
Working principle of Cerec Cad-Cam System: Optical and digital measurements of the prepared cavity or prepared tooth are taken with a camera from inside the mouth. The design is made with a computer program suitable for the purpose, the block is engraved and, if necessary, sintered. The detailed stages of the process are as follows.
In Stage 1: measurements are taken with an optical camera. The measurement taken is transferred directly to the computer to which the camera is connected.
Stage 2: After the computer makes the images three-dimensional, the margins and contours are determined by the dentist and a design suitable for the tooth is made. With its biogeneric feature, the system can recommend restorations similar to the patient's existing teeth. The dentist can take action within the framework of this recommendation or make any changes he wishes. It is possible to check the contact points with the opposing teeth, virtually abrade, add, change the contour, and increase or decrease the frequency of the contact points with the opposing teeth.
Stage 3: After the design is finished, the appropriate color and size block is selected. The tooth form is obtained by milling the block with a micro lathe device.The blocks used with the CEREC system can be feldspathic and leucite-reinforced glass ceramics, as well as porcelain ceramics with high resistance such as lithium disilicate, and nano ceramics. In addition, the CEREC system mills the porcelain to be used on it together with the zirconium substructure, allowing these two parts to be joined together.
Stage 4:The stage4th is the polishing, coloring and glazing of the porcelain, zirconium and material, which is given the form of a prosthetic tooth or inlay or onlay filling. High-tech furnaces are used for this process. Following the digital measurement being taken with the CAD CAM system used in the clinic, design and production are carried out in the patient's presence and the process can be completed in a single session.
DIGITAL DENTISTRY AND SMILE DESIGN
Another advantage of digital dentistry is the ability to design an aesthetic smile. The Cerec system allows the individual to make desired changes in accordance with the face and mouth structure on the teeth, which are transformed into three-dimensional form with the help of a micro camera, to control the contact points with the opposing tooth, to make virtual abrasions, additions, contour changes, to increase the frequency of contact points with the opposing teeth. allows it to be increased or decreased.
In addition, the images of the possible finished state of the teeth obtained with this method are aligned with the individual's real face photograph, and the dentist and the individual have the opportunity to see the new restoration before it is finished. You will be informed about the aesthetic smile design you will have before the procedure.