Full Contour Monolithic
Zirconia Crown & Bridges at Delhi India.
Monolithic Zirconia full-coverage restorations have
begun a revolution that just may lead to the demise of the PFM. The advantages
of Monolithic Zirconia crowns are numerous. They can be prepared just like the
preferred posterior full-coverage preparation. Full-shoulder, chamfer, or even
knife-edge finish lines are acceptable for Monolithic Zirconia crowns. In tight
occlusal areas, like second molars, as little as 0.5 mm of occlusal reduction
is adequate for strength and block-out of underlying tooth structure. Three-,
four-, and even six-unit bridges may be fabricated using Monolithic Zirconia,
as long as the connectors are developed using the suggested guidelines.
The
development of full-contour monolithic zirconia (MZ) crowns promises an end to the heartbreak of fractured aesthetic porcelain on posterior crowns and bridges. MZ crowns can be
prepared just like conventional PFM crowns using either a butt shoulder, a
chamfer, or a knife-edge finish line. MZ crowns may be fabricated with as
little as 0.5-mm of occlusal reduction, and most importantly, MZ crowns can be
cemented using the clinician’s choice of favourite conventional
cement. The only difference between an MZ crown and a conventional PFM
crown can be summed up in one word — unbreakable.
