Over the past decade, great strides have been made in improving the strength and durability of crowns, bridges and other dental restorations. And with new generation, biocompatible materials and computer-aided design and manufacture (CAD-CAM), these restorations have become more tooth-like than ever.
Advances in cements and cementation procedures have also helped improve restorative dentistry, creating longer lasting bonds than older materials. Now a new ceramic and fabrication process may be the next step forward.
This product is fabricated in a new heating process to create a very rough surface texture on the inside of the crown where the bond agent is applied before affixing the crown to the tooth. Plaster or blood and saliva can become trapped in the valleys of the new surface. But during the veneering procedure excess plaster particles are burned off to prevent contamination. The etching of the interior crown surface with an acid before attaching it to the tooth also removes the blood and saliva.
[Dental researcher Jin-Ho] Phark says the “gold standard” in attaching aluminum- and zirconium-oxide crowns has been to blast the interior of the crown with sand particles to roughen the surface and then to attach it with a special cement. But sandblasting may weaken the ceramic material.
“This new crown comes prepared and does not need the extra sandblasting treatment by a dental technician,” says Phark. It can be also attached with normal cements.
We look forward to seeing more about this promising new process.