DIGITAL CAD CAM DENTURES

S obzirom na napredak veliki iskorak CAD/CAM tehnologije u posljednjem desetljeću na području fiksne protetike i uzimajući u obzir dugotrajnost i čestu nepreciznost pri izradi potpune proteze na konvencionalan način, za očekivati je bilo sličan iskorak i u mobilnoj protetici. Usprkos poteškoćama koji su imali pioniri ove tehnologije, ona je sada savršenija i u nekoliko varijanti dostupna na tržištu. Iako ih je malo, gotovo sva istraživanja govore u prilog CAD/CAM proteze nad konvencionalnom po pitanjima preciznosti, brzine izrade, udobnosti za pacijenta, retencije, stabilizacije, biokompatibilnosti, kemijskih i mehaničkih osobina. Svi sustavi CAD/CAM izrade proteze imaju svoje prednosti i nedostatke, ali sve CAD/CAM metode izrade su kvalitetnije u odnosu na konvencionalan način izrade potpune proteze te je danas moguće proizvesti gotovu protezu u samo 2 posjete pacijenta. Korištenjem softvera, tj. računalnim dizajniranjem proteze, dentalni tehničar izbjegava neke fizičke postupke kao što je izrada modela, individualnih žlica, zagriznih bedema, postupak kivetiranja i postave zubi. Većinu tih postupaka izvodi računalno potpomognuti stroj za glodanje. Izglodani predpolimerizirani akrilatni blok pokazuje bolja kemijska i mehanička svojstva u odnosu na konvencionalnu bazu proteze te veću biotolerantnost zbog manje poroziteta. Osnovni problem ove tehnologije je što iziskuje vještog terapeuta s određenim kliničkim iskustvom te dobrom educiranošću po pitanju potpunih proteza i njihove izrade CAD/CAM sistemomConsidering the considerable advancements of CAD / CAM technology in the last decade in the field of fixed prosthodontics and taking into account longevity and frequent imprecision in making a complete denture in a conventional way, it could have been expected that a similar upset would occur in mobile prosthodontics. Despite the difficulties experienced by pioneers of this technology, it is now more perfect in several variants available on the market. Although there is not much research, almost all of it suggests CAD / CAM dentures over conventional when considering precision, speed, patient comfort, retention, stabilization, biocompatibility, chemical and mechanical properties. All CAD / CAM molding systems have their advantages and disadvantages, but all CAD / CAM manufacturing methods are superior to the conventional way of making a full prosthesis and today it is possible to produce a complete denture in only 2 patient visits. By using software for denture design, the dental technician avoids some physical procedures such as modeling, individual trays, bite rims, flasking and teeth setting. Most of these procedures are performed by a computer aided milling machine. Milled pre-polymerized acrylic block exhibits better chemical and mechanical properties than the conventional denture base and higher biotolerance due to less porosity. The basic problem of this technology is that it requires a skilled therapist with a certain clinical experience and good education in the field of complete dentures and their CAD / CAM design