[The finishing of adhesive tooth-colored inlays made of composite and ceramic].
The destruction potential of 4 different finishing and polishing systems was evaluated using 104 occlusal direct inlays made from composite and ceramic, respectively. An inhomogeneous microfilled composite, a fine particle hybrid composite, a glass ceramic and a fine porcelain were utilized as filling materials. Finishing diamonds, white stones, flexible discs and silicon rubber polishing cups were examined as finishing and polishing instruments. Replicas were examined using a scanning electron microscope (SEM) to reveal enamel, composite and inlay margin fractures. Results were described as percentages of perfect margin. The surface roughness of composite and ceramic blocks was measured by means of a profile meter after surface finishing and polishing with the instruments mentioned above. Except for the fine porcelain, the flexible disc finishing and polishing system provides constantly the best results with greater than or equal to 95% of excellent margin. Similar results were achieved by fine finishing diamonds only. The surface roughness was reduced significantly by the flexible discs and by silicon rubber polishers only. Finishing diamonds and flexible discs are the most suitable instruments for finishing and polishing of tooth-colored adhesive inlays. They are nondestructive against enamel, the inlay and the cement surfaces.
Schmid
O
O
Abteilung für Präventivzahnmedizin, Parodontologie und Kariologie, Zahnärztliches Institut, Universität Zürich.
Krejci
I
I
Lutz
F
F
D002516:Ceramics; D003116:Color; D003188:Composite Resins; D003738:Dental Cements; D003775:Dental Polishing / Q000295:instrumentation / Q000379:methods*; D003831:Denture, Partial, Immediate; D005069:Evaluation Studies as Topic; D006801:Humans; D007284:Inlays; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
D003188:Composite Resins; D003738:Dental Cements
Ausarbeitung von adhäsiven zahnfarbenen Inlays aus Komposit und Keramik.